Category Archives: Security
GnuPGP Quickstart Guide
“GnuPG uses public-key cryptography so that users can communicate securely. In a public-key system, each user has a pair of keys consisting of a private and public key. A user’s private key is kept secret; it need never to be … Continue reading
Restricting Shell Users to their Home Directory
The “easiest way” to lock down users to their home directory is to switch their shell account to rbash (restricted bash). The rbash shell behaves like the bash shell, but some functions are disallowed e.g. change directory with cd. For … Continue reading
Restricting Shell for only SCP/SFTP
If you have a server, but only want to allow users to copy files via sFTP without providing shell access. This can be done with rssh, a restricted shell for use with OpenSSH that allows only scp and/or sftp. To … Continue reading
WinPatrol
To provide my computer with even more protection against security threats such as viruses, spywares, and rootkits, I recently installed WinPatrol an intrusion prevention system. Unlike traditional security programs which scans your hard drive to search for threats that has … Continue reading
Surfing the Web using SSH Tunnel
Sometimes, you are connected to an internet which is unknown/insecure such as public WiFi hotspots or you are just surfing the internet at work. In these type of scenarios you might want to secure your connection so no one can … Continue reading