Just a quick tutorial on installing Webmin on CentOS. With a fresh CentOS Installation, run this command to download the software: wget http://prdownloads.sourceforge.net/webadmin/webmin-1.831-1.noarch.rpm You can head to here to get the latest version: There are dependancies that will need to be installed. You can do that via Yum by running this command: yum -y install perl perl-Net-SSLeay openssl perl-IO-Tty Finally, run this command: rpm -U webmin-1.831-1.noarch.rpm That should … [Read more...] about Install Webmin on CentOS
If you've moved onto the big leagues and want to run CentOS without the X Windows System desktop you can run this to remove it. First make sure your machine knows to start up in text mode: # vi /etc/inittab Find the text that looks like: id:5:initdefault: Replace the 5 with a 3: id:3:initdefault: Reboot and you'll be all set. To save space, remove the entire default CentOS 6.5 desktop by doing the following: sudo yum groupremove "X Window System" … [Read more...] about Uninstall X Window System on CentOS 6
Just a quick little guide and reminder for how to install Salt on CentOS 6. Salt resides in the EPEL repository, so you'll first have to use that: sudo yum install epel-release After that, choose what you'd like to install from Salt. Either the master: yum install salt-master or the minion... yum install salt-minion Say yes to everything and you'll be all set. Cheers. … [Read more...] about Install Salt Master or Minion on CentOS 6
I ran an updated to Windows 10 and all of a sudden my VMs in VMware Workstations were showing "Network Cable Unplugged" when I tried to use them. Here's what I did to fix that: Power off all your VMs In VMware Workstation go to Edit > Virtual Network Editor Choose to change settings and say OK to run as admin If you have static IPs or IP ranges you want to keep, note them Choose "Restore Defaults" at the bottom I didn't have to remove or add anything back to the VM. They came … [Read more...] about VMware Workstation VMs shows Network Cable Unplugged
Here are all of the quick commands I have to use on almost every Linux build. uname will return Linux uname -r Will return the version you are running uname -m Will return the kernel release uname -a Returns all the info it can give you about the kernel cat /etc/os-release All of the above commands will give you kernel and release information. They are pretty handy when you're working with some weird distros. df -h Will return your disk usage and status ifconfig Will return what … [Read more...] about Linux Command Quick Guide
Overview I came across this issue not too long ago and wanted to share my findings. First, this issue is not just an OpenVPN issue. If a service is dependent on certain sockets and ports being open but they are in use or closed, the service is going to fail. The good news is that the issue is fairly easy to fix on a running server with a little detective work and a few easy commands. … [Read more...] about OpenVPN – Process started and then immediately exited. Socket bind failed on local address. Address already in use.
This tutorial will show you how to install OpenVPN on a CentOS Server. With a little experience, this tutorial can also be used to help install OpenVPN on other Linux Operating Systems. CentOS 5.8 64-bit OpenVPN 1.8.4 Open a Terminal in CentOS and enter the following command to download the package from OpenVPN's website (20MB): wget http://swupdate.openvpn.org/as/openvpn-as-1.8.4-CentOS5.x86_64.rpm Install the package using the following command: rpm -i … [Read more...] about The Fastest Way to Install OpenVPN
If you're new to Linux and you've been following along a tutorial or something somewhere tells you to use the nano command, you may get this error at first: -bash: nano: command not found Fear not. It's a fairly simple fix. Nano is a text editor and although your Linux server may have the package, it may not already be installed. Before installing nano, give vi a try. Vi or Vim Editor is widely accepted as the most popular text editor in Linux. If you're running CentOS, Vim Editor is already … [Read more...] about -bash: nano: command not found