Pavel May

7 posts by Pavel May

Sep 11, 2013 | 7 min read
What's 2013 + 50? 1969, of course!
What happens when the latest CentOS 6.4/RHEL/FreeBSD GnuTLS certtool gets used to generate a TLS certificate with a 18250-day validity period? Time travel back in...
Sep 18, 2012 | 1 min read
Observer effect and YOU (NSLCD and GetPWNam()-a-plenty)
So, whilst rooting around on one of our servers’s /var/log/*, I noticed that nslcd was attempting to look up, as usernames, apparently just regular strings...
Jun 21, 2012 | 4 min read
Repos, RPMs, and bootstraps, oh my!
Dell’s OMSA (Open Manage Server Administrator) tools are quite nice, but the 6.5.x (and prior) version’s installation process did not lend itself to being automated...
May 14, 2012 | 2 min read
Finding references to lazily unmounted filesystems
Just because a file system is lazily unmounted (or so claims the mount command and /proc/mounts), doesn't mean it is no longer in use. Here's...
Mar 28, 2012 | 3 min read
Linux disk crypto, now with ease
Imagine that you want to host a Linux machine outside of your own physical control. Imagine that it can get resold later to people who...
Feb 17, 2012 | 1 min read
The adventures in NIC bonding
So. Had an interesting problem happen. On a CentOS 5.5 system (2.6.18-194.26.1.el5), an attempt was made to establish a 3-way LACP-style (aka 802.3ad) bonded NIC...
Feb 17, 2012 | 3 min read
OpenLDAP, DBD, and you.
So, today we’ve had us a wee bit of an issue with our OpenLDAP servers – to LDAP clients, the server, on attempts to do...