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Archive for the 'sysadmin' Category

It’s a common sysadmin task to want to change permissions on all the
files and subdirectories under a top-level directory. You could just
use the ‘-R’ switch
to chmod,
but what if your files and directories need different permissions? One
scenario that comes up is with shared directories - you have a
directory tree that has to be writable by users […]

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There is an article up at InformIT by John Tränkenschuh
titled
href=”http://www.informit.com/articles/printerfriendly.asp?p=471099&rl=1″>SSH
Issues: Does Installing SSH Enable More Exploits Than it
Solves?. The basic premise of the article is that SSH usage is
enabling security holes, in most cases quietly, that otherwise would
not have been present. The specific example given is that of SSH agent
forwarding, and how compromise of the […]

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