Q. FreeBSD 7.0-RELEASE is now available for the 64 and 32 bit computer architectures. How do I upgrade FreeBSD version 6.3-pX 64 bit to latest 7.0 64 bit system?
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by nixCraft on March 3, 2008 · 24 comments
Q. FreeBSD 7.0-RELEASE is now available for the 64 and 32 bit computer architectures. How do I upgrade FreeBSD version 6.3-pX 64 bit to latest 7.0 64 bit system?
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by nixCraft on February 4, 2008 · 11 comments
I‘ve noticed lots of failed login attempt for my Debian Linux VPS root server account. How do I stop automated bot based SSH attacks on my server?
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by nixCraft on August 8, 2007 · 7 comments
How do I block and stop attacks on ssh server under CentOS Linux or Red Hat Enterprise Linux server 5.x?
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by nixCraft on April 16, 2007 · 3 comments
Q. I’m using Red hat Enterprise Linux server. I’m getting following error in /var/log/message file: Apr 16 16:38:02 server ntpd[22694]: sendto(10.0.77.54): Bad file descriptor Apr 16 16:38:08 server ntpd[22694]: sendto(66.111.46.200): Bad file descriptor Apr 16 16:38:25 server ntpd[22694]: sendto(83.133.111.7): Bad file descriptor Apr 16 16:38:28 server ntpd[22694]: sendto(81.169.156.100): Bad file descriptor How do I fix [...]
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by nixCraft on July 30, 2006 · 3 comments
Q. I am running SSH/MySQL/Webserver and setup iptables based firewall. But my logs are send to console rather than the system log files. How do make sure that iptables LOG target messages are send to /var/log/messages file? A. IPTABLES LOG module turns on kernel logging of matching packets. When this option is set for a [...]
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by nixCraft on July 17, 2006 · 52 comments
I am new to Linux and I would like to know where are the log files located under Debian or Cento OS Linux server? How do I open or view log files?
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