Problem While going through a DRBD howto a coworker made, I came across the following problem. On a freshly created DRBD block device, mkfs bails out with the following message: mkfs.ext3 /dev/drbd0 mke2fs 1.39 (29-May-2006) mkfs.ext3: Wrong medium type while trying to determine filesystem size Cause…
Since last November I’ve been busy getting my website noticed by search engines. All the extra modules and tweaking resulted in an indexable, yet slow-loading website. Not a fun thought if you consider it all looks pretty simple. Google’s Webmaster Tools notified me that my site was steadily…
Jumbo frames are what you need on a dedicated storage (NFS, iSCSI, DRBD) network. Since the packets are bigger, fewer packets are needed to send the same data. This results in faster transfers and less CPU overhead on both the transmitting and receiving ends. All in all, a good recipe…
Let’s assume your OpenSolaris workstation doesn’t have enough swap space configured. In the old pre-ZFS days this was solvable by creating a swap file using mkfile(1M). With ZFS, things are a bit different: the resulting files aren’t usable as swap space anymore. Check the available amount…
Users not properly logging out of systems can result in sessions that will never be terminated. To make sure the sessions will at some point be terminated, a TMOUT variable can be set in /etc/profile case "$0" in -sh | -ksh | -bash) TMOUT=32400 export TMOUT esac In…
My extensive experience in the Linux and UNIX world of computing is paying off. My research for Microsoft will include (secretly) implementing Open Source software and ideas in upcoming releases for the Microsoft Office line and the Microsoft Windows line of products. I’m very excited about this and I…
Well today seems to be International Women’s day... Of course everyone should celebrate this :) I celebrate today, by showing you a classic image that has been around on the ‘Net for several years now: Happy International Women’s day people! ;)…
Let’s add a little more data to my previous article on stopping referrer spam. It’s the current list of blocked IP addresses. Currently the list blocks 245 addresses. RewriteEngine On RewriteCond %{REMOTE_ADDR} ^217.106.90.[0-255] [OR] RewriteCond %{REMOTE_ADDR} ^12.177.13.252$ [OR] RewriteCond %{REMOTE_…