I have a headless Jetson Nano setup.
Setup and First Boot
ls /dev/cu.usbmodem*
sudo screen /dev/cu.usbmodem14216221044843 115200
It is a USB connection between the Jetson Nano and the Mac, and the above command to configure the Jetson Nano. But when I run it again it asks for user and password and just logs me in. I made a mistake in my setup and would like to do the same again. I tried initializing the SD card again with balenaEtcher, but it seems my settings are still recorded somewhere. Perhaps I can do the same thing by running some command after I log in. Can you tell me what it is? If that is difficult, can you tell me how to initialize my settings and show the system configuration again?
Related
I have downloaded Genymotion and installed it with Oracle Virtualbox 5.0.10 on Windows 10/64bit.
I keep getting the errors:
Virtualization engine not found.
Cannot rename this connection. A connection with the name you specified already exists. Specify a different name.
I've tried uninstall/reinstall, deleted unused network adapters in device manager. I'm at loss.
Thank you all in advance for any help/idea.
You must go the VirtualMachine preferences under File in the menu. Then choose the Network setting, then Host-only Networks.
You can use the - button to delete all of the Ethernet Adapters that you have there.
Then create a new one and use the following settings:
IPv4 Address : 192.168.1.201
IPv4 network mask : 255.255.255.0
Then in the DHCP server tab:
Address: 192.168.1.100
mask: 255.255.255.0
Lower address: 192.168.1.101
Upper address : 192.168.1.199
Check to see which Ethernet adapter # you have now set up - this might be important later on.
Click OK for all the open boxes or save whatever you have.
Then try and run genyMotion again.
This worked for me.
There is one more thing you may have to do if this still doesnt work.
Go to Network and sharing centre . Change adapter settings and disable all the Ethernet connections EXCEPT for the Ethernet adapter you have just created.
I hope that helps
Daniel
For Ubuntu
Almost every GNU/Linux system comes with an installer package for Oracle VM VirtualBox.
Browse for the Oracle VM VirtualBox installer in your directories.
If you do not have the installer or if you need to install a specific version, download and install VirtualBox for Linux hosts from the Download VirtualBox page.
When installing VirtualBox, in the Custom setup window, make sure VirtualBox Networking is enabled.
Go to the Genymotion download page and download the Linux package corresponding to your system.
Run the following commands:
chmod +x <Genymotion installer path>/genymotion-<version>_<arch>.bin
cd <Genymotion installer path>
./genymotion-<version>_<arch>.bin -d <Genymotion installer path>
Run Genymotion using the following command:
cd <Genymotion installer path>
./genymotion
I currently have an html file on a remote unix server that I ssh to. I have been using SFTP to constantly transfer it to my local machine to view it after my edits, but I am tired of this.
What is the best program/method for Mac users to have a browser window view of the html file that is stored in a remote unix server? Or is there an ssh client that can easily edit html files?
It is possible, but with some playing around on the server.
Once you have ssh'ed into the server, install a web server in that box.
Say the file is named index.html, you should make it available at the URL http://localhost:8000/index.htmlor port number can be anything.
The simplest method I can think of starting a web server at that location is
cd /directory/where/html/is/present
python -m SimpleHTTPServer 8000 # For python 2
python3 -m http.server 8000 # For python 3
This works provided python is installed on the server. It should not be that hard to install it as python is available from almost every package manager in every flavor of linux.
Now that html is available at python
http://localhost:8000/index.html
on that machine.
But we have not yet configured the browser in such way.
To do that you need to ssh into the server again, but with a -D option this time
ssh servername -D 7000
-D specifies application level tunneling when connecting via ssh
Then in Firefox, preferences/options -> Advanced -> Networks -> Connection Settings -> Choose Manual Proxy configuration
SOCKS HOST should be localhost , port no 7000.
Then the html should be directly available at
http://localhost:8000/index.html
in your Firefox browser.
This feature is only available in the Firefox browser.
You can mount the remote directory with sshfs which gives you easy access to all the files.
E.g.:
sshfs user#server:/directoryToMount /localDirectory
We're using OpenNebula to simulate a simple replicated JBoss application.
We've installed all opennebula packages, qemu and kvm and libvirt.
We have created a simple ethernet network ad hoc between my pc (a node) and the one of my friend (which is both node and front-end) by plugging an ethernet cable between me and him (10.0.0.1 and 10.0.0.2).
So we can ping each other correctly, we've set everything to that we can ssh without a password to each other with "oneadmin" user.
We've configured all files such as below:
/etc/libvirt/libvirtd.conf
/etc/default/libvirtd-bin
And so on...
kvm and kvm-intel are both enabled.
The daemon
libvirtd -d -l
seems to start correctly.
In fact, from the gui of opennebula in the front end, we can see both the hosts monitored.
Anyway there's a problem when we try to start the virtual machine on the node which is not the front-end. I mean when we try to do a deploy of a VM on the other node. The error is something like this
cannot stat `/var/lib/one/datastores/1/f5394317d377beaa09fc07697df9ff68
but if, from the front end which has virtual machine n°1 we perform,
cd /var/lib/one/datastores/1
then we can see that file, we've also given all the permissions to it...
Any idea? :(
This may be related with the datastore configuration. If you left the default values, OpenNebula expects a shared filesystem (ie NFS) between the front-end and the virtualization nodes.
More context on the error (which I believe can be found in /var/lib/one/oned.log) would help analysing this problem.
I am trying out a "Hello World" exercise for GCE. First, I went with CentOS Image, added the instance, installed Apache, added the Firewall. All looks good as far as configuration is concerned. When I try to access the web page from outside, it cannot reach the page.
The Local Apache Server is running, from the local instance I can do a curl and all is well.
On the other hand, if I try out the same exact steps with the Debian distribution, everything works smoothly.
I saw another post that mentioned about additional firewall settings but I have not tried that out and I am not sure why it should be done either.
Can anyone explain if the CentOS setup does need additional Firewall settings and what those are?
CentOS defaults to a restrictive operating system level firewall (using iptables), while debian defaults to a permissive one. You can relax the firewall rules on CentOS as well. When running on Compute Engine, the service level firewall will only allow connections from the internet via configured ports.
To relax the CentOS firewall:
$ sudo iptables -D INPUT -j REJECT --reject-with icmp-host-prohibited
Then test that your connections work as expected. To save this configuration across system reboots:
$ /sbin/service iptables save
See the IPTables HowTo on the CentOS wiki for more information about working with iptables on CentOS.
You need free the ports in the cloud console.
Watch this video that explain the proccess.
Google Compute Engine Test Drive
I have looked at lots of forms and threads on this site.
First I installed MySQL using msi installer.
Configuration settings:
- detailed configuration
- developer machine
- multifunctional database
- initial path
- decision support
- enable tcp/icp networking, port 3306, add firewall exception for this port.
- enable strict mode
- best support for multilangualism
- install as windows service, include bin directory
- entered root password.
Then when I clicked execute it freezes after writing the configuration file.
- I closed that window.
Then when I opened MySQL Command Line Client and typed in the root password i get this..
ERROR 2003: Can't connect to to MySQL server (10060)
I then opened up command prompt and typed.
C:\Program Files\MySQL\MySQL Server 5.5\bin\mysqld --install
got message:
Install/remove of this service denied.
I ran the initial configuration as administrator and I have checked that port 3306 is open.
Hope this is detailed enough.
Thanks.
I would suggesting uninstalling them all and reinstalling them with a package such as LAMP (for linux) or XAMPP (for windows). Much easier to install and set up, tutorials everywhere.
Can you get to the MySQL server instance config wizard in start menu
Is the MySQL service running?
whats the conf file look like?