What are TCP Wrappers? How do I find out if program / server / service is compile with TCP Wrappers? What are the advantages and disadvantages of TCP Wrappers over Firewalls like netfilter or pf? How do I protect my Mac OS X or Sun Solaris or Linux workstation using TCP Wrappers?
My development and testing webserver is used by over 100s of users. These users login from Windows XP, Linux, Mac OS X system via ssh. How do I set or automatically log users out after a period of inactivity under CentOS Linux server to improve server security and save some resources?
My squid proxy server is displaying system’s real IP address. I’ve a corporate password protected squid proxy server located at 220.127.116.11. My clients works from home or offices via A/DSL / cable connections. Squid should hide all system’s IP address, but it is forwarding and displaying the system’s IP address. How do I configure squid to hide client’s real IP address?
I am on Red Hat Enterprise Linux 5.x server. Is there is an easy way to run script or command at boot time after fresh reboot command?