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Archive for November, 2011

Short: SFTP chroot for user to web root

November 9th, 2011 No comments

I needed sometimes to grant access to web root for developer/friends and don’t want to  allow them “chillout” thru directories Winking smile . Here is sample how to setup SSHD server to allow sftp connection and chroot it to home directory – basically lock user via SFTP to Virtual Home for web server.

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Categories: Linux Tags: , , , ,

DNS Cache and Spamassassin performance

November 9th, 2011 No comments

 

DNS cache is very valuable thing when you are running RBL checks via Spamassassin. As many RBL lists, many IPs in header means a lot of queries. Of course, if you receiving 20 mails per day, its not big deal, but when you hit 200k per day, just simple thing can help a lot. With easy scrip tyou can debug how fast is Spamassassin on your system with RBL queries.

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Categories: Linux Tags: , , ,