Posts Tagged ‘linux’

Denyhosts and other ssh security

Saturday, July 24th, 2010

We have several servers exposed to the internet.  Being Linux servers, we manage them by ssh.  For security, we only allow key access — no passwords.  But we still get a HUGE number of login attempts from — how shall I put it — unauthorized users.  We always had no passwords set (! in the shadow file, not blank) and root disallowed from ssh so nobody could have logged in, but they still tried.  Even after I turned off PasswordAuthentication, we still got attempts.

iSCSI on a Dell MD3000i

Thursday, April 1st, 2010

My company recently got a Dell MD3000i “SAN” for a pretty good deal.  We’re starting to dabble in such things as virtualization, and the offer was too good to refuse.  The MD3000i is pretty basic.  Really it seems like just a JBOD with an iSCSI head, but it is a good way to start to play in that space.   We got it with dual controllers and about 6TB of space.