I'm trying to build an OKD 4.5 single node cluster following Craig Robinson blog post (at https://medium.com/swlh/guide-okd-4-5-single-node-cluster-832693cb752b). I faced with this issue first on bootstrap node, but after deleting and recreating the whole process again, it booted up successfully. But the same issue happened again while preparing control plane master node. After initial coreos download (which proves webserver is working fine), I get this recurring GET error message over and over again:
ignition[xxx]: GET error: Get "https://api-int.lab.okd.local:22623/config/master": EOF
And this is my control plane node config:
ip=10.106.31.233::10.106.31.1:255.255.255.0:::none nameserver=10.106.31.231 coreos.inst.install_dev=/dev/sda coreos.inst.image_url=http://10.106.31.231:8080/okd4/ fcos.raw.xz coreos.inst.ignition_url=http://10.106.31.231:8080/okd4/master.ign
IPs are:
okd-services: 10.106.31.231 ;
bootstrap: 10.106.31.232 ;
control-plane: 10.106.31.233
I can reach the http://10.106.31.231:8080/okd4 address from remote pc and list the contents including master.ign file. Also pinging "api-int.lab.okd.local" is successful too. firewalld open ports on okd-services node are:
[root#okd4-services ~]# ss -ltu
Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
udp UNCONN 0 0 0.0.0.0:hostmon 0.0.0.0:*
udp UNCONN 0 0 10.106.31.231:domain 0.0.0.0:*
udp UNCONN 0 0 127.0.0.1:domain 0.0.0.0:*
udp UNCONN 0 0 127.0.0.53%lo:domain 0.0.0.0:*
udp UNCONN 0 0 [::]:hostmon [::]:*
udp UNCONN 0 0 [::]:domain [::]:*
tcp LISTEN 0 128 0.0.0.0:ssh 0.0.0.0:*
tcp LISTEN 0 4096 127.0.0.1:rndc 0.0.0.0:*
tcp LISTEN 0 4096 0.0.0.0:https 0.0.0.0:*
tcp LISTEN 0 4096 0.0.0.0:22623 0.0.0.0:*
tcp LISTEN 0 4096 0.0.0.0:cslistener 0.0.0.0:*
tcp LISTEN 0 4096 0.0.0.0:sun-sr-https 0.0.0.0:*
tcp LISTEN 0 4096 0.0.0.0:hostmon 0.0.0.0:*
tcp LISTEN 0 4096 0.0.0.0:http 0.0.0.0:*
tcp LISTEN 0 10 10.106.31.231:domain 0.0.0.0:*
tcp LISTEN 0 10 127.0.0.1:domain 0.0.0.0:*
tcp LISTEN 0 4096 127.0.0.53%lo:domain 0.0.0.0:*
tcp LISTEN 0 128 [::]:ssh [::]:*
tcp LISTEN 0 4096 [::1]:rndc [::]:*
tcp LISTEN 0 4096 [::]:hostmon [::]:*
tcp LISTEN 0 511 *:webcache *:*
tcp LISTEN 0 10 [::]:domain [::]:*
the output of the dig test on okd-services node is:
[root#okd4-services ~]# dig -x 10.106.31.231
; <<>> DiG 9.11.25-RedHat-9.11.25-2.fc33 <<>> -x 10.106.31.231
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60620
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;231.31.106.10.in-addr.arpa. IN PTR
;; ANSWER SECTION:
231.31.106.10.in-addr.arpa. 604800 IN PTR api-int.lab.okd.local.
231.31.106.10.in-addr.arpa. 604800 IN PTR api.lab.okd.local.
231.31.106.10.in-addr.arpa. 604800 IN PTR okd4-services.okd.local.
;; SERVER: 127.0.0.53#53(127.0.0.53)
I deleted and recreated the control plane to see if it solved the issue, but was not successful. Any idea what this issue means?
I had exact the same issue with this article. The problem was with bootstrap node that cannot finish initialization process. First of all initialize bootstrap node and sure that the process was finished. The simplest way to check what's going on with a node:
Connect to a node with ssh core#<NODE'S-IP> from the machine where you generate ssh-certificate
ssh will provide you useful information:
This is the bootstrap node; it will be destroyed when the master is
fully up.
The primary services are release-image.service followed by
bootkube.service. To watch their status, run e.g.
journalctl -b -f -u release-image.service -u bootkube.service This
is the bootstrap node; it will be destroyed when the master is fully
up.
The primary services are release-image.service followed by
bootkube.service. To watch their status, run e.g.
journalctl -b -f -u release-image.service -u bootkube.service Fedora
CoreOS 32.20200629.3.0 Tracker:
https://github.com/coreos/fedora-coreos-tracker Discuss:
https://discussion.fedoraproject.org/c/server/coreos/
First of all you have to check journalctl -b -f -u release-image.service -u bootkube.service because it's main units. However, there're might be other issues so check failed/not finished systemd's service units with systemctl list-units --type=service and journalctl -f -u <UNIT-NAME> to follow the process
Whole process will spend some time (~20-40 mins in my case) and there're might be some timeouts in journal's logs so just wait the final status of the unit.
Only then you can start initializing of control-plane node
Finally, my issue was in wrong fedora-core-os version because you can use 32 version only. For me it's installed okay with:
fedora-coreos-32.20201104.3.0-metal.x86_64.raw.xz
fedora-coreos-32.20201104.3.0-metal.x86_64.raw.xz.sig
fedora-coreos-32.20201104.3.0-live.x86_64.iso
openshift-client-linux-4.5.0-0.okd-2020-10-15-235428.tar.gz
openshift-install-linux-4.5.0-0.okd-2020-10-15-235428.tar.gz
I am facing errors at the first cup of Ejabberd.
On my Mac(10.13.6) I installed "ejabberd-18.12.1-osx.app" and I have followed all instruction written in official website. (https://docs.ejabberd.im/admin/installation/#install-on-macos)
After installation was completed I noticed nothing significant and found error logs were generated as below.
2019-01-16 10:02:03.936 [error] <0.316.0>#ejabberd_listener:report_socket_error:417 Failed to open socket at [::]:5222 for ejabberd_c2s: address already in use
2019-01-16 10:02:03.937 [error] <0.315.0> Supervisor ejabberd_listener had child {5222,{0,0,0,0,0,0,0,0},tcp} started with ejabberd_listener:start({5222,{0,0,0,0,0,0,0,0},tcp}, ejabberd_c2s, [{ip,{0,0,0,0,0,0,0,0}},{max_stanza_size,262144},{shaper,c2s_shaper},{access,c2s},{starttls_required,...}]) at undefined exit with reason eaddrinuse in context start_error
2019-01-16 10:02:03.937 [error] <0.274.0> Supervisor ejabberd_sup had child ejabberd_listener started with ejabberd_listener:start_link() at undefined exit with reason {shutdown,{failed_to_start_child,{5222,{0,0,0,0,0,0,0,0},tcp},eaddrinuse}} in context start_error
2019-01-16 10:02:03.942 [critical] <0.81.0>#ejabberd_app:start:66 Failed to start ejabberd application: {error,{shutdown,{failed_to_start_child,ejabberd_listener,{shutdown,{failed_to_start_child,{5222,{0,0,0,0,0,0,0,0},tcp},eaddrinuse}}}}}
I exactly understand what "address already in use" means but netstat does not show any possession on this port. Also I never changed any of the server configuration. I tried to start server manually but same errors repeats.
Does this version of Ejabberd have bugs on Mac installation?
Many thanks in advance.
When ejabberd starts, it uses several ports (some for XMPP, others for additional ejabberd features, others for Erlang). Notice that some ports may be in IPv6:
tcp 0 0 0.0.0.0:42859 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:4560 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:epmd 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:5280 0.0.0.0:* LISTEN
tcp6 0 0 [::]:epmd [::]:* LISTEN
tcp6 0 0 [::]:xmpp-client [::]:* LISTEN
tcp6 0 0 [::]:xmpp-server [::]:* LISTEN
Maybe you have other previous ejabberd installation around there messing? Or other XMPP server?
I am trying to deploy an small private Ethereum network using geth. I have a server running geth configured as a miner in my local network. In the other side I have a droplet in DigitalOcean that I want to use as a bootnode to connect future nodes to my network.
I have executed the following commands in my DigitalOcean Droplet:
bootnode --genkey=boot.key
bootnode --nodekey=boot.key --addr:$(MY_PUBLICIP):30301
And I get the following output from the command instead of my public key that I need to introduce as my enode reference in the future nodes:
INFO [10-29|18:13:32.851] New local node record seq=1 id=785b198c28c625f8 ip=<nil> udp=0 tcp=0
Could please somebody tell how to interpret the output from the bootnode command?
I introduced a netstat command in order to find out whether or not the program is opening a port.
ether#ubuntu-s-1vcpu-2gb-ams3-01:~$ netstat -l
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 localhost:domain 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:ssh 0.0.0.0:* LISTEN
tcp6 0 0 [::]:ssh [::]:* LISTEN
udp 6912 0 localhost:domain 0.0.0.0:*
udp 0 0 ubuntu-s-1vcpu-2g:30301 0.0.0.0:*
raw6 0 0 [::]:ipv6-icmp [::]:* 7
raw6 0 0 [::]:ipv6-icmp [::]:* 7
I'm using a standard Ubuntu 18.04 configuration of the basic droplet DigitalOcean, I would like to know if I should configure something else besides the usual compilation of the geth code in order to make a bootnode work.
Thanks any help is welcomed.
I installed a zabbix-server and a zabbix-proxy on the same server, a debian 7.6
But I can't run zabbix-proxy on a passive mode, here is the issue :
listener failed: zbx_tcp_listen() fatal error: unable to serve on any address [[-]:10051]
Here is my netstat
tcp 0 0 0.0.0.0:10050 0.0.0.0:* LISTEN 2142/zabbix_agentd
tcp 0 0 0.0.0.0:10051 0.0.0.0:* LISTEN 55825/zabbix_server
Because my zabbix-proxy need to be on a passive mode, I can not change his port. Any way to force this changing or any fix to handle this case ?
Cheers,
Reconfigure ListenPort of Zabbix server and then just use that new Zabbix server port in other settings (agents, proxies, senders, ...).
Doc: https://www.zabbix.com/documentation/3.2/manual/appendix/config/zabbix_server
i have installed mysql on ubuntu server, but i want to connect with mysql workbench remotely.
I just see other answer, but my /etc/mysql/my.cnf is that:
GNU nano 2.5.3 File: /etc/mysql/my.cnf Modified
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
#
# * IMPORTANT: Additional settings that can override those from this file!
# The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mysql.conf.d/
I just Grant privileges to 'root'#'%'
This is netstat:
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 16431/mysqld
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1471/sshd
tcp6 0 0 :::80 :::* LISTEN 15874/apache2
tcp6 0 0 :::22 :::* LISTEN 1471/sshd
What can i do? Any ideas of bad configuration?