Dec 8, 2011 0
The auth.log on one of my servers (really, on all of the servers I have access to) is full of stuff like this: Dec 8 03:19:33 localhost sshd[4718]: User root from 10.1.2.3 not allowed [...] Dec 8 03:19:35 localhost sshd[4721]: Invalid user db2inst1 from 10.1.2.3 Dec 8 03:19:38 localhost sshd[4723]: User root from 10.1.2.3 not [...]
Read the rest of this entry »Nov 11, 2011 0
My ISP has apparently made no progress whatsoever with IPv6, but I’ve got an IPv6 enabled VPS. SSH makes it trivial to use that VPS as a SOCKS5 proxy. Just do: ssh -D 8080 myvps.example.com Then set your browser’s SOCKS proxy to localhost:8080. In Firefox on Linux, this is Edit > Preferences > Advanced > [...]
Read the rest of this entry »Jul 20, 2011 0
A python-based project I’m working on has a win32 user that I need to support. Until yesterday I’ve been moving to a win32 laptop in order to run python setup.py bdist_wininst so I can produce a self-installing executable. Then I discovered how trivial it is to use wine to do the job: Install wine. (sudo [...]
Read the rest of this entry »May 26, 2010 0
ISC’s dhcpd uses this code to check for an already-running daemon: /* Read previous pid file. */ if ((i = open (path_dhcpd_pid, O_RDONLY)) >= 0) { status = read (i, pbuf, (sizeof pbuf) – 1); close (i); if (status > 0) { pbuf [status] = 0; pid = atoi (pbuf); /* If the previous server [...]
Read the rest of this entry »Aug 12, 2009 1
Every now and then I have to run a foreground job under sudo that doesn’t want to die when I hit ^C. Then it’s a hassle to ^Z, get the pid of the sudo job, and sudo kill that pid. So I wrote a little script (or a template for scripts) that runs the sudo [...]
Read the rest of this entry »Aug 5, 2009 0
The ctypes module makes loading and calling into a dynamic library incredibly easy.
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From The Peanut Gallery