I recently came up with this error on one of my OpenVPN servers. "OpenVPN - Socket bind failed on local address [AF_INET] IP:#portnum: Cannot assign requested address" Let me share how I did fix it. First off, check this openvpn’s default init script : [email protected] 1sudo grep After …

This is a manual version of ssh-copy-id command. Let’s say that we are logging in to server named B from a local machine named A. First off, generate authentication key pair without passphrase on the local machine A: 1ssh-keygen -t rsa Now you got a public key of your local machine, of which path is: 1cd ~/.ssh 2cat …

In some situations, you are given only a ppk file for access to a cloud server. You know, however, it's for Putty on windows, not for OpenSSH client which might be the most familiar to you.🤔 I am gonna introduce a method to convert a ppk file into a pem file so that you can login to the linux server with ssh command …

Thanks to Stan's great work, it became so delightful to run your own secure and stable private VPN server. It's never been so easy. 👍 Download the installation script like this: 1wget https://raw.githubusercontent.com/Angristan/openvpn-install/master/openvpn-install.sh Change file permission to executable like this: …

CI/CD Build History You might have ever been stuck in continuous deployment with codeship. Hacking principle of CI/CD is all the same in other platforms like CircleCI, Codefresh, TeamCity, etc. Okay, let’s get started. First off, connect your version control app such as github, gitlab or bitbucket to the Codeship.\ …

Auto Login With SSH Today I am going to share you how to login to a cloud server without using password. Let’s say there is a server and your local machine, assuming you can login to the server using some kind of credentials. First off, you should generate a new local public key on your local machine. Chdir to the …

Webmin Login Screen First off, access to the server via ssh with root. Install dependencies with this command: 1yum -y install wget perl perl-Net-SSLeay openssl perl-IO-Tty perl-Encode-Detect perl-Data-Dumper unzip Create a repo file like this: 1nano /etc/yum.repos.d/webmin.repo 1[Webmin] 2name=Webmin Distribution …