Archive for the 'Security' Category



WordPress upgrade

Well Twitter was all abuzz about a WordPress worm and sure enough a worm had been circulating attacking old versions of wordpress.  Well obviously I pretty much never post on this blog these days.   And wordpress is notorious for security issues.  This is partly due to the popularity of the product, partly due to problems […]

Denyhosts parses your log files and adds ssh attack automated attack attempts to tcp_wrappers’ /etc/hosts.deny. This is the same concept as this little shell script I cooked up. Of course my little script was derived from another script specific to openbsd and it’s pf firewall. Denyhosts is pretty much the same idea as mine but […]

ssh blocker script for TCP Wrappers

Since this past summer, compromised machines have been attempting to brute force user accounts via ssh. Mostly this is annoying but it would be nice to detect and block these IPs. Francisco de Borja Lopez Rio made a Python script that watches /var/log/authlog on OpenBSD and adds IPs to a filter table for OpenBSD’s pf. […]




Scott Harney

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