sshd session time out

I realized the sshd installed onto ubuntu server 12.04 LTS does not have session timeout, once login via ssh user can stay in the remote console for unlimited amount of time. I checked the configuration file in /etc/ssh/sshd_config and realized there is no parameter for session time out, I used man sshd_config and realized there … Continue reading sshd session time out →

Debian: Checking your Linux for potential rootkit

You have been tasked to set up a Linux server, you have just installed the core packages of debian with debian small CD. After installation is completed, you download two rootkit checkers: apt-get update #To ensure you have the latest package database. apt-get upgrade #To ensure you have the latest package with security holes patched. … Continue reading Debian: Checking your Linux for potential rootkit →

Configuring Jailed SFTP

By default if you do service ssh start you can access the Linux system remotely using sftp or ssh. Supposed you want to restrict non-root users to /home/sftp through sftp you can do the following: First you can check if there is a group for sftp: cat /etc/group |grep sftp If nothing is shown then … Continue reading Configuring Jailed SFTP →