Chillibear
A place for notes about stuff

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IP Network masks

In Networking, Uncategorized on 8 March 2011 tagged IP, LAN, Network

Numbers of network addresses available for a given number of network bits… I always forget so… Network bits Mask Number of addresses /20 255.255.240.0 4096 /21 255.255.248.0 2048 /22 255.255.252.0 1024 /23 255.255.254.0 512 /24 255.255.255.0 256 /25 255.255.255.128 128 /26 255.255.255.192 64 /27 255.255.255.224 32 /28 255.255.255.240 16 /29 255.255.255.248 8 /30 255.255.255.252 4

Dell iDrac 2048 bit CSR

In OpenSSL, Uncategorized on 22 August 2010 tagged dell, drac

Got an iDRAC card in your Dell server and want to generate a 2048 bit certificate signing request? You’ll need to modify the settings on the DRAC to change it from the default 1024 bit request. SSH into the iDRAC and then type the racadm command as indicated: /admin1-> racadm config -g cfgRacSecurity -o cfgRacSecCsrKeySize [...]