Network Solution for Windows – Windows system, Linux system, Ubuntu server configuration tip

OpenVPN is a very powerful free VPN solution that is supported on Solaris, Linux, OpenBSD, FreeBSD, NetBSD, Mac OS X, and Windows 2000/XP/Vista. I tried the Open Source SSL/TSL-based VPN software on Windows Vista x64 and SuSE Linux 10.1. I think the fact that OpenVPN is available for so many different platforms alone makes it an interesting alternative to commercial products. Can you believe that Cisco’s VPN solution, one of the most popular ...

To install, the application has to be Run as Administrator: After downloading, right-click on the file and select Run as Administrator Agree to any questions that pop up. Click next where prompted. Note: The installation of the TAP adapter can sometimes take up to a minute. Do not exit the installer while the TAP adapter is being processed. Now that setup is complete you also need to set the program for Vista Compatibility mode and as Administrator: 1) Find the file 'openvpn-gui.exe' that ...

How do I add cron job under Linux or UNIX like operating system? Cron job are used to schedule commands to be executed periodically. You can setup setup commands or scripts, which will repeatedly run at a set time. Cron is one of the most useful tool in Linux or UNIX like operating systems. The cron service (daemon) runs in the background and constantly checks the /etc/crontab file, /etc/cron.*/ directories. It also checks the /var/spool/cron/ directory. crontab ...

You can login to a remote Linux server without entering password in 3 simple steps using ssky-keygen and ssh-copy-id as explained in this article. ssh-keygen creates the public and private keys. ssh-copy-id copies the local-host’s public key to the remote-host’s authorized_keys file. ssh-copy-id also assigns proper permission to the remote-host’s home, ~/.ssh, and ~/.ssh/authorized_keys. This article also explains 3 minor annoyances of using ssh-copy-id and how to use ssh-copy-id along with ssh-agent. Step 1: Create public ...

Whenever you need to use scp to copy files, it asks for passwords. Same with rsync as it (by default) uses ssh as well. Usually scp and rsync commands are used to transfer or backup files between known hosts or by the same user on both the hosts. It can get really annoying the password is asked every time. I even had the idea of writing ...

This tutorial is about SSH and SCP. You will learn how to connect to a remote host and how to copy between hosts. This tutorial also documents a few important differences between the commands. Difficulty: Basic Before we start: in this tutorial, you will come across both SSH and ssh. The difference is this: SSH is the general protocol, and ssh is the linux SSH client command. SSH SSH is some kind of an abbreviation of Secure SHell. It ...

Have you ever wanted to know how to easily synchronize the data between multiple servers automatically? In this article I’ll explain how to setup 2 Linux servers to automatically synchronize data between a specific directory on each server. To do this we will use rsync, ssh key authentication, and a cron job. Let’s call the 2 servers ‘SOURCESERVER’ and ‘DESTSERVER’ for SOURCESERVER = Source server (the server we’re connecting from to upload the data) DESTSERVER = Destination server (the server we’re ...