Solaris

Mostly Solaris 9, 10, 11
Mostly Solaris 9, 10, 11
Mostly Oracle, RHEL and its clones
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Debian and clones
shell, perl, some other scripting
Suse distro
Ethernet networking
Fibre Channel
IB
HP-UX version 11.23 and 11.31
Mostly External storages
Quick tips for every day work ...
ftp service
mail service
name service
security tools
miscellaneous ...
databases ...
Monitoring, like Nagios, etc ...