How do I fix SASL authentication failure - smtp

I'm trying to set up an email server on Centos 7 using postfix and dovecot.
whenever I telnet into my server, I get kicked out:
[root#mail log]# telnet mail.mydomain.com smtp
Trying IP ADDRESS...
Connected to mail.mydomain.com.
Escape character is '^]'.
Connection closed by foreign host.
When I check the logs in /var/log/maillog this is the error I see:
Mar 15 05:33:44 vultr postfix/smtps/smtpd[20434]: connect from ***********
Mar 15 05:33:44 vultr postfix/smtps/smtpd[20434]: warning: SASL authentication failure: Internal Error -4 in server.c near line 1757
Mar 15 05:33:44 vultr postfix/smtps/smtpd[20434]: warning: SASL authentication failure: Internal Error -4 in server.c near line 1757
Mar 15 05:33:44 vultr postfix/smtps/smtpd[20434]: warning: SASL authentication failure: Internal Error -4 in server.c near line 1757
Mar 15 05:33:44 vultr postfix/smtps/smtpd[20434]: warning: xsasl_cyrus_server_get_mechanism_list: no mechanism available
Mar 15 05:33:44 vultr postfix/smtps/smtpd[20434]: fatal: no SASL authentication mechanisms
Mar 15 05:33:45 vultr postfix/master[18735]: warning: process /usr/libexec/postfix/smtpd pid 20434 exit status 1
Mar 15 05:33:45 vultr postfix/master[18735]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling
Any help would be appreciated, thank you.

Related

Elasticsearch 7.17.7 use up to 8.1GB ram on Linux Ubuntu 22.04.1. LTS causing slowness on device

I install Elasticsearch 7.17.7 on my local machine Linux Ubuntu 22.04.1 LTS ( not using virtual machine )
To start elasticsearch I run this command in terminal
sudo systemctl start elasticsearch.service
After it successfully start and run I notice it utilize up to 8.1GB of ram which is too huge from what I see, my machine only have 16GB of utilizeable ram
Attached is the elasticsearch info and the stacer output
From time to time I will check to see whether the elasticsearch is running or not because I realize when I am using my laptop doing work and everything, opening tools such as google chrome, vs code and smartgit, at one point my device becomes really slow, then I try to run certain command needed for work and it return error
Elasticsearch\Common\Exceptions\NoNodesAvailableException: No alive nodes found in your cluster
I check and found the error happen because elasticsearch suddenly stop working
I am able to restart elasticsearch using
sudo systemctl restart elasticsearch.service or sudo service elasticsearch restart
but sometimes an error come out causing elasticsearch unable to restart, if this happen, I just restart my laptop, which I wanted to avoid as it is disturbing my work
I am unable to reproduce back the error log but I will update this question once I found the log
Please provide any tips or experience if anyone have encountered this issue
I have tried installing different version of elasticsearch which is 7.16 but still same issue happen
I have tried reinstall elasticsearch but still same
Update : Elasticsearch finally crash and I am unable to restart the service, refer below image for detail and log
Elasticsearch service failed
Error during restart
Update : below is the log I able to receive when starting the elasticsearch
==> /var/log/syslog <==
Dec 8 14:26:37 farhan-Yoga-6-13ALC6 systemd[1]: Starting Elasticsearch...
==> /var/log/kern.log <==
Dec 8 14:26:47 farhan-Yoga-6-13ALC6 kernel: [16726.683629] [UFW BLOCK] IN=wlp2s0 OUT= MAC=01:00:5e:00:00:01:64:3a:ea:e9:0a:4e:08:00 SRC=0.0.0.0 DST=224.0.0.1 LEN=36 TOS=0x00 PREC=0xC0 TTL=1 ID=14037 PROTO=2
==> /var/log/syslog <==
Dec 8 14:26:47 farhan-Yoga-6-13ALC6 kernel: [16726.683629] [UFW BLOCK] IN=wlp2s0 OUT= MAC=01:00:5e:00:00:01:64:3a:ea:e9:0a:4e:08:00 SRC=0.0.0.0 DST=224.0.0.1 LEN=36 TOS=0x00 PREC=0xC0 TTL=1 ID=14037 PROTO=2
==> /var/log/ufw.log <==
Dec 8 14:26:47 farhan-Yoga-6-13ALC6 kernel: [16726.683629] [UFW BLOCK] IN=wlp2s0 OUT= MAC=01:00:5e:00:00:01:64:3a:ea:e9:0a:4e:08:00 SRC=0.0.0.0 DST=224.0.0.1 LEN=36 TOS=0x00 PREC=0xC0 TTL=1 ID=14037 PROTO=2
==> /var/log/auth.log <==
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 sudo: pam_unix(sudo:session): session closed for user root
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 sudo: farhan : TTY=pts/3 ; PWD=/var/log ; USER=root ; COMMAND=/usr/sbin/service elasticsearch restart
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 sudo: pam_unix(sudo:session): session opened for user root(uid=0) by (uid=1000)
==> /var/log/syslog <==
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd[1]: Started Elasticsearch.
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd[1]: Stopping Elasticsearch...
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: uncaught exception in thread [process reaper (pid 46606)]
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "modifyThread")
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at java.base/java.security.AccessControlContext.checkPermission(AccessControlContext.java:485)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at java.base/java.security.AccessController.checkPermission(AccessController.java:1068)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at java.base/java.lang.SecurityManager.checkPermission(SecurityManager.java:411)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at org.elasticsearch.secure_sm.SecureSM.checkThreadAccess(SecureSM.java:160)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at org.elasticsearch.secure_sm.SecureSM.checkAccess(SecureSM.java:120)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at java.base/java.lang.Thread.checkAccess(Thread.java:2360)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at java.base/java.lang.Thread.setDaemon(Thread.java:2308)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at java.base/java.lang.ProcessHandleImpl.lambda$static$0(ProcessHandleImpl.java:103)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.<init>(ThreadPoolExecutor.java:637)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:928)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.processWorkerExit(ThreadPoolExecutor.java:1021)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1158)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at java.base/java.lang.Thread.run(Thread.java:1589)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd-entrypoint[46384]: #011at java.base/jdk.internal.misc.InnocuousThread.run(InnocuousThread.java:186)
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd[1]: elasticsearch.service: Deactivated successfully.
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd[1]: Stopped Elasticsearch.
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd[1]: elasticsearch.service: Consumed 42.311s CPU time.
Dec 8 14:26:49 farhan-Yoga-6-13ALC6 systemd[1]: Starting Elasticsearch...
==> /var/log/auth.log <==
Dec 8 14:27:00 farhan-Yoga-6-13ALC6 sudo: pam_unix(sudo:session): session closed for user root
==> /var/log/syslog <==
Dec 8 14:27:00 farhan-Yoga-6-13ALC6 systemd[1]: Started Elasticsearch.
Update : Able to find out the log that's causing the elasticsearch to stop working, apparently its because the ram usage is too high causing ubuntu to stop the process
Dec 8 14:30:43 farhan-Yoga-6-13ALC6 kernel: [16962.195555] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/system.slice/elasticsearch.service,task=java,pid=46712,uid=128
Dec 8 14:30:43 farhan-Yoga-6-13ALC6 kernel: [16962.195728] Out of memory: Killed process 46712 (java) total-vm:16570600kB, anon-rss:8393480kB, file-rss:0kB, shmem-rss:0kB, UID:128 pgtables:17344kB oom_score_adj:0
==> /var/log/syslog <==
Dec 8 14:30:43 farhan-Yoga-6-13ALC6 kernel: [16962.194794] Monitor Deflati invoked oom-killer: gfp_mask=0x1100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0
Still unable to figure out how to make the elasticsearch use less ram
You can also run an elastic search via docker with the -e ES_JAVA_OPTS="-Xmx512m" option.
Example:
docker network create elastic
docker pull docker.elastic.co/elasticsearch/elasticsearch:8.6.1
docker run --name elasticsearch --net elastic -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" -e ES_JAVA_OPTS="-Xmx512m" -t docker.elastic.co/elasticsearch/elasticsearch:8.6.1

Wamp server on windows 10 Icon Red and I can't left or right click on it either

OK: Not only is my WAMP Icon Red but I can't get anything to appear if I right or left click on it. Hovering over the icon I get "None of 2 services running - server off line".
I have
Installed VC C++ Redist from 2008 - 2015.
Uninstalled Skype.
Disabled World Wide Web Publishing Services.
Made sure my Host file had "127.0.0.1 localhost" and "::1 localhost" enabled.
Installed 32bit version of WAMP.
I would given changing the listening Ports a crack but not being able to click on the WAMP icon I wasn't confident enough to change the files in the folders (Eg. Found multiple copies of httpd.conf). Would have thought steps 2 and 3 would have made this unnecessary anyway.
If in Services, I manually start wampapache and wampmysql I can access localhost/phpmyadmin and localhost/domainfolder, set up databases, install wordpress, etc. Clearly something is going wrong and I'm sure it's destined to give me furthur grief. Any Ideas? I have included my error logs and a screen shot below with my system info.
"Apache_error_log"
[Thu May 05 13:17:27.453022 2016] [auth_digest:notice] [pid 8056:tid 120] AH01757: generating secret for digest authentication ...
[Thu May 05 13:17:27.484243 2016] [mpm_winnt:notice] [pid 8056:tid 120] AH00455: Apache/2.4.17 (Win32) PHP/5.6.15 configured -- resuming normal operations
[Thu May 05 13:17:27.484243 2016] [mpm_winnt:notice] [pid 8056:tid 120] AH00456: Apache Lounge VC14 Server built: Oct 11 2015 16:06:02
[Thu May 05 13:17:27.484243 2016] [core:notice] [pid 8056:tid 120] AH00094: Command line: 'C:\wamp\bin\apache\apache2.4.17\bin\httpd.exe -d C:/wamp/bin/apache/apache2.4.17'
[Thu May 05 13:17:27.484243 2016] [mpm_winnt:notice] [pid 8056:tid 120] AH00418: Parent: Created child process 6692
[Thu May 05 13:17:27.874894 2016] [auth_digest:notice] [pid 6692:tid 428] AH01757: generating secret for digest authentication ...
[Thu May 05 13:17:27.890536 2016] [mpm_winnt:notice] [pid 6692:tid 428] AH00354: Child: Starting 64 worker threads.
[Thu May 05 14:14:30.816395 2016] [authz_core:error] [pid 6692:tid 1100] [client 192.168.0.166:2569] AH01630: client denied by server configuration: C:/wamp/www/
[Thu May 05 14:30:49.331784 2016] [mpm_winnt:notice] [pid 8056:tid 120] AH00422: Parent: Received shutdown signal -- Shutting down the server.
[Thu May 05 14:30:51.363140 2016] [mpm_winnt:notice] [pid 6692:tid 428] AH00364: Child: All worker threads have exited.
[Thu May 05 14:30:53.144329 2016] [mpm_winnt:notice] [pid 8056:tid 120] AH00430: Parent: Child process 6692 exited successfully.
[Thu May 05 15:01:43.930134 2016] [auth_digest:notice] [pid 7168:tid 592] AH01757: generating secret for digest authentication ...
[Thu May 05 15:01:44.273944 2016] [mpm_winnt:notice] [pid 7168:tid 592] AH00455: Apache/2.4.17 (Win32) PHP/5.6.15 configured -- resuming normal operations
[Thu May 05 15:01:44.273944 2016] [mpm_winnt:notice] [pid 7168:tid 592] AH00456: Apache Lounge VC14 Server built: Oct 11 2015 16:06:02
[Thu May 05 15:01:44.273944 2016] [core:notice] [pid 7168:tid 592] AH00094: Command line: 'C:\wamp\bin\apache\apache2.4.17\bin\httpd.exe -d C:/wamp/bin/apache/apache2.4.17'
[Thu May 05 15:01:44.273944 2016] [mpm_winnt:notice] [pid 7168:tid 592] AH00418: Parent: Created child process 628
[Thu May 05 15:01:44.711410 2016] [auth_digest:notice] [pid 628:tid 492] AH01757: generating secret for digest authentication ...
[Thu May 05 15:01:44.805095 2016] [mpm_winnt:notice] [pid 628:tid 492] AH00354: Child: Starting 64 worker threads.
"Last 10 lines of PHP_error_log"
[05-May-2016 05:14:53 UTC] PHP Warning: fopen(C:/wamp/bin/apache/apache2.4.17/conf/httpd.conf): failed to open stream: Permission denied in C:\wamp\scripts\wampserver.lib.php on line 307
[05-May-2016 05:14:53 UTC] PHP Warning: fwrite() expects parameter 1 to be resource, boolean given in C:\wamp\scripts\wampserver.lib.php on line 308
[05-May-2016 05:14:53 UTC] PHP Warning: fclose() expects parameter 1 to be resource, boolean given in C:\wamp\scripts\wampserver.lib.php on line 309
[05-May-2016 05:14:54 UTC] PHP Warning: fopen(../wampmanager.ini): failed to open stream: Permission denied in C:\wamp\scripts\refresh.php on line 1205 [05-May-2016 05:14:54 UTC] PHP Warning: fwrite() expects parameter 1 to be resource, boolean given in C:\wamp\scripts\refresh.php on line 1206
[05-May-2016 05:14:54 UTC] PHP Warning: fclose() expects parameter 1 to be resource, boolean given in C:\wamp\scripts\refresh.php on line 1207 [05-May-2016 05:14:54 UTC] PHP Warning: unlink(C:/wamp/bin/apache/apache2.4.17/bin/icudt54.dll): Permission denied in C:\wamp\scripts\wampserver.lib.php on line 78
[05-May-2016 05:14:54 UTC] PHP Warning: symlink(): Cannot create symlink, error code(1314) in C:\wamp\scripts\wampserver.lib.php on line 81 [05-May-2016 05:14:54 UTC] PHP Warning: unlink(C:/wamp/bin/apache/apache2.4.17/bin/icuin54.dll): Permission denied in C:\wamp\scripts\wampserver.lib.php on line 78
[05-May-2016 05:14:54 UTC] PHP Warning: symlink(): Cannot create symlink, error code(1314) in C:\wamp\scripts\wampserver.lib.php on line 81 [05-May-2016 05:14:54 UTC] PHP Warning: unlink(C:/wamp/bin/apache/apache2.4.17/bin/icuio54.dll): Permission denied in C:\wamp\scripts\wampserver.lib.php on line 78
[05-May-2016 05:14:54 UTC] PHP Warning: symlink(): Cannot create symlink, error code(1314) in C:\wamp\scripts\wampserver.lib.php on line 81 [05-May-2016 05:14:54 UTC] PHP Warning: unlink(C:/wamp/bin/apache/apache2.4.17/bin/icule54.dll): Permission denied in C:\wamp\scripts\wampserver.lib.php on line 78
System Info
Did you install WAMPServer 3 as an Administrator, using the "Run as Administrator" as instructed in the install instructions.
The installer must be run "as an administrator"
If you did not, uninstall WAMPServer and then reinstall it doing this:
Right click on the installer .exe and select "Run as Administrator"
did you have any missing DLLs while installing wampserver?
I had the same problem and the solution was
close the wampserver tray (from task manager)
go Here and download the Visual C++ Redistributable for Visual Studio and install it.
now open Wamp as administrator
the problem should be gone by now (at least that was the solution for me)

Cygnus can not persist data on Cosmos global instance

When trying to persist an entity from Cygnus to Cosmos global instance it fails.
Looking at the log file I see something like that:
2015 15:31:50,006 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.sendRequestHeader:273) - >> GET /webhdfs/v1/user/ms/def_serv/def_servpath/6_registervalues/6_registervalues.txt?op=getfilestatus&user.name=ms HTTP/1.1
12 Nov 2015 15:31:50,006 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.sendRequestHeader:276) - >> X-Auth-Token: xxxxxxxxxxxxxxxxxxx
12 Nov 2015 15:31:50,006 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.sendRequestHeader:276) - >> Host: cosmos.lab.fiware.org:14000
12 Nov 2015 15:31:50,006 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.sendRequestHeader:276) - >> Connection: Keep-Alive
12 Nov 2015 15:31:50,007 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.sendRequestHeader:276) - >> User-Agent: Apache-HttpClient/4.2.1 (java 1.5)
12 Nov 2015 15:31:50,284 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.close:169) - Connection 0.0.0.0:59834<->130.206.80.46:14000 closed
12 Nov 2015 15:31:50,285 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.client.DefaultRequestDirector.tryExecute:716) - Closing the connection.
12 Nov 2015 15:31:50,285 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.close:169) - Connection 0.0.0.0:59834<->130.206.80.46:14000 closed
12 Nov 2015 15:31:50,286 INFO [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.client.DefaultRequestDirector.tryExecute:723) - I/O exception (java.net.SocketException) caught when processing request: Connection reset
12 Nov 2015 15:31:50,287 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.client.DefaultRequestDirector.tryExecute:728) - Connection reset
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:185)
at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:166)
(I have obfuscated the token in the example above.)
for some reason the connection is closed.
Orion and Cygnus are installed on a fiware lab private instance in Spain2.
When trying to fire the same request from the command line from the Orion machine, I get the same disconnected response.
curl -X GET "http://cosmos.lab.fiware.org:14000/webhdfs/v1/user/ms/def_serv/def_servpath/6_registervalues/6_registervalues.txt?op=getfilestatus&user.name=ms" -H "X-Auth-Token: xxxxxxxxxxxxxxxxxxxxxx"
curl: (56) Failure when receiving data from the peer
But surprisingly, when doing the same request from the command line from the Cosmos global instance, it works!
See:
[ms#cosmosmaster-gi ~]$ curl -X GET "http://cosmos.lab.fiware.org:14000/webhdfs/v1/user/ms/def_serv/def_servpath/6_registervalues/6_registervalues.txt?op=getfilestatus&user.name=ms" -H "X-Auth-Token: xxxxxxxxxxxxxxxxx"
{"FileStatus":{"pathSuffix":"","type":"FILE","length":2,"owner":"ms","group":"ms","permission":"644","accessTime":1447332222908,"modificationTime":1447253745711,"blockSize":67108864,"replication":3}}
[ms#cosmosmaster-gi ~]$
Seems like Cosmos will not service connection arriving from a fiware lab instance running on Spain2.
Does anyone knows what's the issue here, and how to correct this.
Thanks!
Menachem S.
Issue was solved by a workaround.
The Cygnus server was installed on an external node ( a Machine on Azure), and everything works fine wrt Orion-->Cygnus-->Cosmos stream.

Apache dbd Internal error: AH00629: Can't connect to mysql

I'm trying to use dbd with mysql as authentification with Apache 2.4.
When Apache starts, i have this error :
[Tue May 12 13:07:18.789021 2015] [mpm_event:notice] [pid 10625:tid 140410697815936] AH00489: Apache/2.4.10 (Debian) configured -- resuming normal operations
[Tue May 12 13:07:18.789118 2015] [core:notice] [pid 10625:tid 140410697815936] AH00094: Command line: '/usr/sbin/apache2'
[Tue May 12 13:07:18.789469 2015] [dbd:error] [pid 10628:tid 140410697815936] (20014)Internal error: AH00629: Can't connect to mysql: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
[Tue May 12 13:07:18.789560 2015] [dbd:error] [pid 10628:tid 140410697815936] (20014)Internal error: AH00633: failed to initialise
[Tue May 12 13:07:18.790282 2015] [dbd:error] [pid 10629:tid 140410697815936] (20014)Internal error: AH00629: Can't connect to mysql: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
[Tue May 12 13:07:18.790441 2015] [dbd:error] [pid 10629:tid 140410697815936] (20014)Internal error: AH00633: failed to initialise
[Tue May 12 13:07:18.792481 2015] [dbd:crit] [pid 10628:tid 140410697815936] (20014)Internal error: AH00636: child init failed!
[Tue May 12 13:07:18.792595 2015] [dbd:crit] [pid 10629:tid 140410697815936] (20014)Internal error: AH00636: child init failed!
dbd_mysql.conf :
DBDriver mysql
DBDParams "host=192.168.1.2 port=3306 user=MY_USERNAME pass=MY_PASSWORD dbname=MY_DATABASE"
DBDMin 2
DBDKeep 4
DBDMax 10
DBDExptime 300
DBDPersist On
000-default.conf
[...]
DBDParams "dbname=DATABASENAME"
<IfModule authnz_ldap_module>
<Directory /var/www/test/>
AuthName "Authentication"
AuthType Basic
AuthBasicProvider dbd
AuthDBDUserPWQuery "SELECT SHA2(password, 256) AS password FROM users WHERE username = %s"
require valid-user
</Directory>
</IfModule>
[...]
If i change the password to put an invalid one, i received the exception
Internal error: AH00629: Can't connect to mysql: Access denied for user...
Debian : 7.8
Apache : 2.4.10
libapr1 : 1.5.1-3 (i tried to downgrade, but i cannot)
Note: The server do not have php nor php+mysql (libphpmysql) installed
Edit :
my.cnf (client part)
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
Edit (2) :
I also tried to use the "odbc" for mysql
odbc.ini :
dbd_mysql.conf
DBDriver odbc
DBDParams "datasource=MYSERVER_MYSQL_MYDATABASE"
DBDMin 1
DBDKeep 1
DBDMax 10
DBDExptime 300
/etc/odbc.ini (i edited the config to remove sensitive data)
[MYSERVER_MYSQL_MYDATABASE]
Driver=/usr/local/lib/libmyodbc5a.so
Description=MYSERVER_MYSQL_MYDATABASE
SERVER=192.168.1.2
PORT=
USER=MY_USER
Password=MY_PASSWORD
Database=MY_DATABASE
OPTION=3
SOCKET=
If i use :
# isql MYSERVER_MYSQL_MYDATABASE
+---------------------------------------+
| Connected! |
| |
| sql-statement |
| help [tablename] |
| quit |
| |
+---------------------------------------+
It working perfectly.. but on the apache error.log :
[Thu May 14 09:07:51.323638 2015] [mpm_event:notice] [pid 1605:tid 140068309481344] AH00489: Apache/2.4.10 (Debian) configured -- resuming normal operations
[Thu May 14 09:07:51.323725 2015] [core:notice] [pid 1605:tid 140068309481344] AH00094: Command line: '/usr/sbin/apache2'
[Thu May 14 09:07:51 2015] [dbd_odbc] Invalid DBD Parameters - open returned SQL_ERROR (-1) at /tmp/buildd/apr-util-1.5:1146
[Thu May 14 09:07:51.323827 2015] [dbd:error] [pid 1608:tid 140068309481344] (20014)Internal error: AH00629: Can't connect to odbc: [dbd_odbc] Invalid DBD Parameters - open returned SQL_ERROR (-1) at /tmp/buildd/apr-util-1.5:1146
[Thu May 14 09:07:51.323870 2015] [dbd:error] [pid 1608:tid 140068309481344] (20014)Internal error: AH00633: failed to initialise
[Thu May 14 09:07:51 2015] [dbd_odbc] Invalid DBD Parameters - open returned SQL_ERROR (-1) at /tmp/buildd/apr-util-1.5:1146
[Thu May 14 09:07:51.324332 2015] [dbd:error] [pid 1609:tid 140068309481344] (20014)Internal error: AH00629: Can't connect to odbc: [dbd_odbc] Invalid DBD Parameters - open returned SQL_ERROR (-1) at /tmp/buildd/apr-util-1.5:1146
[Thu May 14 09:07:51.324430 2015] [dbd:error] [pid 1609:tid 140068309481344] (20014)Internal error: AH00633: failed to initialise
[Thu May 14 09:07:51.331767 2015] [dbd:crit] [pid 1608:tid 140068309481344] (20014)Internal error: AH00636: child init failed!
[Thu May 14 09:07:51.331823 2015] [dbd:crit] [pid 1609:tid 140068309481344] (20014)Internal error: AH00636: child init failed!
Edit (3) :
I found that i did not register the driver :
./myodbc-installer -d -a -n "MySQL ODBC 5.3 Driver" -t "DRIVER=/usr/local/lib/libmyodbc5a.so"
Then changed the "dbd_mysql.conf" with :
DBDriver odbc
DBDParams "CONNECT='DRIVER={MySQL ODBC 5.3 Driver};SERVER=192.168.1.2;DATABASE=MY_DATABASE;UID=MY_USER;PWD=MY_PASSWORD;'"
DBDMin 1
DBDKeep 1
DBDMax 10
DBDExptime 300
But still the same problem (error.log) :
[Fri May 15 09:38:31.905733 2015] [core:notice] [pid 5215:tid 140452627486592] AH00094: Command line: '/usr/sbin/apache2'
[Fri May 15 09:38:31 2015] [dbd_odbc] Invalid DBD Parameters - open returned SQL_ERROR (-1) at /tmp/buildd/apr-util-1.5:1146
[Fri May 15 09:38:31.905842 2015] [dbd:error] [pid 5218:tid 140452627486592] (20014)Internal error: AH00629: Can't connect to odbc: [dbd_odbc] Invalid DBD Parameters - open returned SQL_ERROR (-1) at /tmp/buildd/apr-util-1.5:1146
[Fri May 15 09:38:31.905888 2015] [dbd:error] [pid 5218:tid 140452627486592] (20014)Internal error: AH00633: failed to initialise
[Fri May 15 09:38:31 2015] [dbd_odbc] Invalid DBD Parameters - open returned SQL_ERROR (-1) at /tmp/buildd/apr-util-1.5:1146
[Fri May 15 09:38:31.906424 2015] [dbd:error] [pid 5219:tid 140452627486592] (20014)Internal error: AH00629: Can't connect to odbc: [dbd_odbc] Invalid DBD Parameters - open returned SQL_ERROR (-1) at /tmp/buildd/apr-util-1.5:1146
[Fri May 15 09:38:31.906528 2015] [dbd:error] [pid 5219:tid 140452627486592] (20014)Internal error: AH00633: failed to initialise
[Fri May 15 09:38:31.915211 2015] [dbd:crit] [pid 5218:tid 140452627486592] (20014)Internal error: AH00636: child init failed!
[Fri May 15 09:38:31.915578 2015] [dbd:crit] [pid 5219:tid 140452627486592] (20014)Internal error: AH00636: child init failed!
DBDParams must be separated with comma: DBDParams param1=value1[,param2=value2]
http://httpd.apache.org/docs/2.4/mod/mod_dbd.html
in my.conf try
[client]
protocol=tcp
The reference Connecting to the MySQL Server provides an explanation of how to override the default connection methodology.
The reference Using Option Files vaguely explains what values can be placed in the my.conf file. Essentially an argument that can be passed to the mysql command on the command line (ie. --protocol) can be specified, without the dashes, in the option file.

Wampserver icon not going green fully, mysql services not starting up?

I'm running an application on localhost, it's been running successfully for at least a year now, but suddenly today wampserver isn't starting up. Whenever I rightclick on the taskbar icon and "start all services", it gets orange, but never green. Yesterday there was a data loss problem because one of the mysql tables crashed and had to be repaired, if that's related to this in any way.
If I try http://localhost/phpmyadmin, I get a 403 Forbidden error, which I never got before.
I checked the apache log today and its latest entries are:
[Sat Jul 20 14:17:31 2013] [error] [client 127.0.0.1] PHP Stack trace:, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:31 2013] [error] [client 127.0.0.1] PHP 1. {main}() D:\\wamp\\www\\zeejflow\\index_exe.php:0, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:31 2013] [error] [client 127.0.0.1] PHP 2. mysql_real_escape_string() D:\\wamp\\www\\zeejflow\\index_exe.php:25, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:31 2013] [error] [client 127.0.0.1] PHP Warning: mysql_real_escape_string() [<a href='function.mysql-real-escape-string'>function.mysql-real-escape-string</a>]: A link to the server could not be established in D:\\wamp\\www\\zeejflow\\index_exe.php on line 25, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:31 2013] [error] [client 127.0.0.1] PHP Stack trace:, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:31 2013] [error] [client 127.0.0.1] PHP 1. {main}() D:\\wamp\\www\\zeejflow\\index_exe.php:0, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:31 2013] [error] [client 127.0.0.1] PHP 2. mysql_real_escape_string() D:\\wamp\\www\\zeejflow\\index_exe.php:25, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:32 2013] [error] [client 127.0.0.1] PHP Warning: mysql_real_escape_string() [<a href='function.mysql-real-escape-string'>function.mysql-real-escape-string</a>]: [2002] No connection could be made because the target machine actively (trying to connect via tcp://localhost:3306) in D:\\wamp\\www\\zeejflow\\index_exe.php on line 26, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:32 2013] [error] [client 127.0.0.1] PHP Stack trace:, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:32 2013] [error] [client 127.0.0.1] PHP 1. {main}() D:\\wamp\\www\\zeejflow\\index_exe.php:0, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:32 2013] [error] [client 127.0.0.1] PHP 2. mysql_real_escape_string() D:\\wamp\\www\\zeejflow\\index_exe.php:26, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:32 2013] [error] [client 127.0.0.1] PHP Warning: mysql_real_escape_string() [<a href='function.mysql-real-escape-string'>function.mysql-real-escape-string</a>]: No connection could be made because the target machine actively refused it.\r\n in D:\\wamp\\www\\zeejflow\\index_exe.php on line 26, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:32 2013] [error] [client 127.0.0.1] PHP Stack trace:, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:32 2013] [error] [client 127.0.0.1] PHP 1. {main}() D:\\wamp\\www\\zeejflow\\index_exe.php:0, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:32 2013] [error] [client 127.0.0.1] PHP 2. mysql_real_escape_string() D:\\wamp\\www\\zeejflow\\index_exe.php:26, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:32 2013] [error] [client 127.0.0.1] PHP Warning: mysql_real_escape_string() [<a href='function.mysql-real-escape-string'>function.mysql-real-escape-string</a>]: A link to the server could not be established in D:\\wamp\\www\\zeejflow\\index_exe.php on line 26, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:32 2013] [error] [client 127.0.0.1] PHP Stack trace:, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:32 2013] [error] [client 127.0.0.1] PHP 1. {main}() D:\\wamp\\www\\zeejflow\\index_exe.php:0, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:32 2013] [error] [client 127.0.0.1] PHP 2. mysql_real_escape_string() D:\\wamp\\www\\zeejflow\\index_exe.php:26, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:33 2013] [error] [client 127.0.0.1] PHP Warning: mysql_num_rows() expects parameter 1 to be resource, integer given in D:\\wamp\\www\\zeejflow\\index_exe.php on line 34, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:33 2013] [error] [client 127.0.0.1] PHP Stack trace:, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:33 2013] [error] [client 127.0.0.1] PHP 1. {main}() D:\\wamp\\www\\zeejflow\\index_exe.php:0, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:33 2013] [error] [client 127.0.0.1] PHP 2. mysql_num_rows() D:\\wamp\\www\\zeejflow\\index_exe.php:34, referer: http://localhost/zeejflow/index.php
[Sat Jul 20 14:17:33 2013] [error] an unknown filter was not added: DEFLATE
[Sat Jul 20 14:17:33 2013] [error] an unknown filter was not added: DEFLATE
[Sat Jul 20 14:17:33 2013] [error] an unknown filter was not added: DEFLATE
Lines 25 and 26 on index_exe.php are simply as below (I was trying to log in to the application):
$userName = mysql_real_escape_string($_POST['userName']);
$Password = mysql_real_escape_string($_POST['Password']);
Because of the [2002] No connection could be made because the target machine actively (trying to connect via tcp://localhost:3306 error, I figured maybe there's a problem with some other application using the same port, so I tried the following (my wamp is running on D:) :
C:\Users\admin>netstat
Active Connections
Proto Local Address Foreign Address State
TCP 127.0.0.1:5939 localhost127:49313 ESTABLISHED
TCP 127.0.0.1:5939 localhost127:49317 ESTABLISHED
TCP 127.0.0.1:49155 localhost127:49156 ESTABLISHED
TCP 127.0.0.1:49156 localhost127:49155 ESTABLISHED
TCP 127.0.0.1:49157 localhost127:49158 ESTABLISHED
TCP 127.0.0.1:49158 localhost127:49157 ESTABLISHED
TCP 127.0.0.1:49311 localhost127:49312 ESTABLISHED
TCP 127.0.0.1:49312 localhost127:49311 ESTABLISHED
TCP 127.0.0.1:49313 localhost127:5939 ESTABLISHED
TCP 127.0.0.1:49315 localhost127:49316 ESTABLISHED
TCP 127.0.0.1:49316 localhost127:49315 ESTABLISHED
TCP 127.0.0.1:49317 localhost127:5939 ESTABLISHED
TCP 127.0.0.1:49320 localhost127:49321 ESTABLISHED
TCP 127.0.0.1:49321 localhost127:49320 ESTABLISHED
TCP 192.168.15.200:49166 server6201:5938 ESTABLISHED
TCP 192.168.15.200:49847 Server-PC:netbios-ssn TIME_WAIT
TCP 192.168.15.200:49848 Server-PC:netbios-ssn TIME_WAIT
D:\>netstat
Active Connections
Proto Local Address Foreign Address State
TCP 127.0.0.1:80 localhost127:49799 TIME_WAIT
TCP 127.0.0.1:80 localhost127:49800 TIME_WAIT
TCP 127.0.0.1:80 localhost127:49801 TIME_WAIT
TCP 127.0.0.1:80 localhost127:49802 TIME_WAIT
TCP 127.0.0.1:80 localhost127:49803 TIME_WAIT
TCP 127.0.0.1:80 localhost127:49804 TIME_WAIT
TCP 127.0.0.1:80 localhost127:49806 TIME_WAIT
TCP 127.0.0.1:80 localhost127:49810 TIME_WAIT
TCP 127.0.0.1:80 localhost127:49811 TIME_WAIT
TCP 127.0.0.1:5939 localhost127:49313 ESTABLISHED
TCP 127.0.0.1:5939 localhost127:49317 ESTABLISHED
TCP 127.0.0.1:49155 localhost127:49156 ESTABLISHED
TCP 127.0.0.1:49156 localhost127:49155 ESTABLISHED
TCP 127.0.0.1:49157 localhost127:49158 ESTABLISHED
TCP 127.0.0.1:49158 localhost127:49157 ESTABLISHED
TCP 127.0.0.1:49311 localhost127:49312 ESTABLISHED
TCP 127.0.0.1:49312 localhost127:49311 ESTABLISHED
TCP 127.0.0.1:49313 localhost127:5939 ESTABLISHED
TCP 127.0.0.1:49315 localhost127:49316 ESTABLISHED
TCP 127.0.0.1:49316 localhost127:49315 ESTABLISHED
TCP 127.0.0.1:49317 localhost127:5939 ESTABLISHED
TCP 127.0.0.1:49320 localhost127:49321 ESTABLISHED
TCP 127.0.0.1:49321 localhost127:49320 ESTABLISHED
TCP 192.168.15.200:49166 server6201:5938 ESTABLISHED
TCP 192.168.15.200:49805 mrs02s05-in-f4:http ESTABLISHED
But now I don't know what to make of this. I made sure my.ini had specified port 3306, and it had (anyway noone changed it in a year how could it suddenly have another value). Any help please! I think Apache is working because when I type in http://localhost, it works and gives the option to go to phpmyadmin or my application folder, but it appears mysql services aren't starting up or something? I confirmed with the admin and no new software (such as Skype) have been installed or anything.
Update
I went to Services.msc and checked wampapache, the status was "started".
But wampmysqld had no status. So I right-clicked and chose "Start".
A message said "Windows is attempting to start the service on the local computer", but then I got this error:
Windows could not start the wampmysqld service on Local Computer
Error 1067: The process terminated unexpectedly
What on earth is up? :(
Update 2
I got the mysql working again, here:
mysqld working but wampmysqld not starting up
HowEVER, localhost://phpmyadmin still gives me a 403 forbidden error, and mysql_connect keeps giving me an "Access denied" error.
Go to: wamp\bin\mysql\mysql5.6.17\data and delete the following:
auto.cnf, xxxxxxxxx.err, xxxxxxxxx.pid, ib_logfile0 and ib_logfile1
leave other file as it is.
if it is skype that is occupying your port 80 then go to skype: tools>option and in advance>connection uncheck "use port 80 and 443......"
This happened to me today. Since I had not changed my system setting since yesterday, I assumed it's predominantly a mysql issue on the system. I managed to fix it in the following way.
Open wampserver's mysql log file. This will contain information on why the service threw and error and exited prematurely.
In my case, the mysql service failed to start because it could not read a certain tablespace. The specific tablespace was indicated in the log.
Failure to read such a file could be because of file permissions or the file being broken. In such a case, mysql stops executing in order to avoid damaging a tablespace file that may be linked to a database you need. Usually, if you have a backup of the database, then it is safe to simply delete this problematic file and restore the database once your mysql service is started again.
If you do not have a database backup then you could force the mysql instance to run a recovery by enabling the option in your my.cnf / my.ini file.
innodb_force_recovery = 1
This forces the instance to run the crash recovery.
NOTE: installing a new instance of mysql does not necessarily mean that your databases shall be retained. I suggest you run a nightly backup of your databases if you are working on huge projects.
I had the same issue, to resolve it I added the following line to my.ini
innodb_force_recovery = 1
I was running Wamp Server for more than a year,
Now I faced a problem that I couldn't start Wamp server (The icon just stay red and the error message appear)
I managed to uninstall Wamp and reinstall it again, and so I did, but before that I copied the folder from mysql/data to my desktop then when I reinstall it I copied that files to the original location.
Then mysql just got confused... And phpmyadmin is not working so I fixed that by restoring the fresh install folder contents..
But I couldn't start mysql (the wamp servers icon still on yellow)
So after I googled a lot, I deleted every thing in the mysql/data except for:-
mysql
test
performance_schema
And my problem solved :)
I had this same problem...
WampServer has been running fine since Feb on my local dev server. Today I couldn't get it to run.
Off to google where I found this page and found no answers until I saw the last entry:
"1.Run WampServer: Apache->service->test port 80.
2.Find out application which occupation port 80(e.g. skype)"
So did and it returned that Skype was possibly blocking port 80.
Turned off Skype and the problem was solved.
I had the same problem. Mysql didn't start.
go to services.
right click the wampmysqld go to properties.
startup type select manual.
right click and click start service.
worked for me.
-Go to Task Manger
-End all task instances of mysql
-restart your wampserver
For me, adding innodb_force_recovery=3 to my.ini solved the issue
Another option is removing ibdata files and all ib_logfile from the data directory , as explained in MySQL docs here. However this will cause any innoDB tables not to work(because the some information stored in ibdata1)
You may want to reset data from MySQL
delete previous data from C:\wamp\bin\mysql\mysql5.6.17\data
restart service
Delete everything from this file.
C:\wamp\bin\mysql\mysql5.1.36\data\mysql-bin.index
Restart mysql server and it should work.
I opened up services.msc from the command prompt and disabled SQL Server reporting services
& SQL Server analysis services. These services were using port 80.
Then I restarted WAMP Server and it started working properly as before.
I have uninstalled the WampServer completelly, and deleted all files in /wamp folder, except www. This folder is preserved when uninstalling. After that I've installed it again and it works fine.
Important: This is helpful only in case when you already have your database backed up. All data from the database will be wiped out this way.
Delete everything from this file.
C:\wamp\bin\mysql\mysql5.1.36\data\mysql-bin.index
It works for me. My wamp server has turned green. Tnx a lot
Click on wamp (Yellow) icon
Go Apache-> Service-> Test port 80. If port is available to use
then go to Apache->Service-> Install Service
then click on Restart All Services.
Have you tried just changing the port number of MySQL and see if it works?
Right click your WAMP icon
Choose MySQL, in the menu choose "Use a port other than 3306"
Change port number to be "3307"
I've got a very similar problem, after a lot trying even the solutions in this question I concluded with THIS OTHER ANSWER.
I didn't replicated it here because it is NOT A CORRECT THING TO DO.
Basically is about re-installing MySQL (or the entire package) being sure to delete very well the old my-sql-data very well (back it up if you might need it) and stick on using 32 bit versions.
simplest this to do is find what other service is using the same service id as mysql does in windows.
When i looked through the list of services running on my pc (even after a restart...i still had the problem)
I quickly realised i had webmatrix installed on my computer previous to wamp server...webmatrix installed its own copy of mysql and set it to automatically startup another instance each time i logged in.
As soon as the other instance of mysql associated with web matrix was stopped (and changed from automatic startup to manual) my problem with WAMP mysql was solved.
I was running on the same problem, wampmysqld64 did not start, so I checked the Mysql log which you should find it inside the main wamp64 folder, and I found all the details on why is not working. on my computer I found another mysql instance is running so it prevents the wampmysqld64 to start. I stopped the other instance, and everything works fine after.
I have solved my problem just by following below steps:
On windows platform press WINDOWS + R
Put services.msc and press OK
Stop already running MySQL and
Go to Wamp and start/resume MySQL service
All the best
Click on wampserver icon then -> Apache -> httpd.conf -> search listen here you will find port number like this #Listen 12.34.56.78:80
Listen 80 change this port number with any other number like Listen 12.34.56.78:81 save this and now restart all servers it gets green to orange.
I had the same probelm for the past 3 days. Try this. It will definitely work.
BEFORE proceeding with the installation of Wampserver, you must ensure that certain elements are installed on your system, otherwise Wampserver will absolutely not run, and in addition, the installation will be faulty and you will need to remove Wampserver BEFORE installing the elements that were missing.
Uninstall wamp and download and Install microsoft visual c++ redistributable 2008 (https://www.microsoft.com/en-in/download/details.aspx?id=29), microsoft visual c++ redistributable 2012 (https://www.microsoft.com/en-in/download/details.aspx?id=30679), microsoft visual c++ redistributable 2015 (https://www.microsoft.com/en-in/download/details.aspx?id=48145). Now, reinstall wamp and it should work fine.
Wow.. This works for me. Unistall the wamp server
Make sure this dependencies are successfully installed Microsoft Visual C++ Redistributable Packages vcredist_Allversions(x32 orx64) depending on your OS.
Reinstall the wamp server and you are good to go. Thank you
Run WampServer: Apache->service->test port 80.
Find out what application which occupies the port 80(e.g. skype)
Shut down and restarts WampServer.
Basically this happens when you have not installed pre required software installed on your machine while installing Wampserver you might have got error bellow error at the time of installation.
program can't start because msvcr120.dll is missing OR
program can't start because msvcr120.dll is missing
If you fixed those issue after the installation of wampserver then you might get stuck at this problem.
Then You can simply uninstall and install wamp server again
And If you have not install pre required dependency then first of all uninstall wampserver . And then install pre requirement first and then finally you can install Wampserver and it should work now.
you can download Pre-required applications from following link
For x64 Machines
microsoft visual c++ 2010 redistributable package (x64) https://www.microsoft.com/en-in/download/details.aspx?id=14632
Visual C++ Redistributable for Visual Studio 2012 Update 4 https://www.microsoft.com/en-in/download/details.aspx?id=30679
Visual C++ Redistributable Packages for Visual Studio 2013 https://www.microsoft.com/en-in/download/details.aspx?id=40784
Visual C++ Redistributable for Visual Studio 2015
https://www.microsoft.com/en-in/download/details.aspx?id=48145
For x86 Machines
Microsoft Visual C++ 2010 Redistributable Package (x86)
https://www.microsoft.com/en-in/download/details.aspx?id=14632
Visual C++ Redistributable for Visual Studio 2012 Update 4 https://www.microsoft.com/en-in/download/details.aspx?id=30679
Visual C++ Redistributable Packages for Visual Studio 2013 https://www.microsoft.com/en-in/download/details.aspx?id=40784
Visual C++ Redistributable for Visual Studio 2015
https://www.microsoft.com/en-in/download/details.aspx?id=48145
Note:- Take backup of your project files before uninstall
My problem was that wampmysqld64 service was disabled, so I went to:
task manager > services > right click on wampmysqld64 and then properties, another window is gonna open, look for wampmysqld64 service then right click and then click on properties and a window is gonna pop up:
On "Startup type" just change it from disabled to automatic, then go back click on the service and run it and that's it wamp logo it's gonna turn green.