Robin at yo61.com found a great and handy way to discover the MAC addresses of the embedded NICs of your Dell (PowerEdge) servers. Instead of going through DRAC, logging in, starting Java, etc. you can also get the same using the RAC command line interface: racadm racdump. Read the article on yo61.com for complete details. Excellent! If only I could find a similar command for my 500 PE2950 servers with DRAC5...
I've been playing a bit with the nscd now and want to share some tips related to tuning the nscd.conf file. To see how the DNS cache is doing, use nscd -g. nscd configuration: 0 server debug level 26m 57s server runtime 5 current number of threads 32 maximum number of threads 0 number of times clients had to wait yes paranoia mode enabled 3600 restart internal passwd cache: no cache is enabled [other zero output removed] group cache: no cache is enabled [other zero output removed] hosts cache: yes cache is enabled yes cache is persistent yes cache is shared 211 suggested size 216064 total data pool size 1144 used data pool size 3600 seconds time to live for positive entries 20 seconds time to live for negative entries 66254 cache hi...
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