March 1, 2009 Posted in Networking
Today I found some sites on my server didn’t respond, but I couldn’t find anything wrong with the server. Apache logs showed that these websites hadn’t got any visits since 16 hours ago. Read More
January 20, 2009 Posted in Networking
I made some mistakes when adding additional IPs for my new server and was locked out twice. Here are some tips to avoid those errors.
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October 26, 2008 Posted in Networking
This is a great tutorial on traceroute, including exercise and an online tool. I can traceroute to my server successfully from my desktop or VPS, but most online tools failed. The one in the above link also has a TCP mode, isn’t traceroute based on ICMP? Maybe that’s why other online tools failed - they only use ICMP mode. Read More