I want to get an alert when my disk is full under UNIX and Mac OS X? How do I set a a specified threshold and run the script via cron?
{ 26 comments }
Openbsd
I see lots of failed FTP login attempts in my log file. How do I stop FTP bruteforce attack? What should I do to solve this problem under FreeBSD 7.x server operating systems?
{ 5 comments }
Can you provide me a while loop control flow statement shell script syntax and example that allows code to be executed repeatedly based on a given boolean condition?
{ 17 comments }
I‘m not told to use the root user to perform activities that do not require it. I’ve configured sudo for myself and for other web developers so that they can restart MySQL or Apache web server. How do I send email when sudo run by one of my user? How do I keep track of user login done via sudo command?
{ 10 comments }
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?
{ 6 comments }
We establish connections to remote systems without supplying a password, however I do not want to store my password less keys ( passphrase-free keys) on my servers. ssh-agent, takes care of keys with passphase, which allowing me to easily have ssh-agent process per system per login session. How do I dramatically reduces the number of times I’ve to punch my passphrase from once per new login session to once every time my local server is rebooted? How do I use keychain utility for all my backup scripts for secure passwordless login?
{ 10 comments }
