Resize iSCSI partition

Lets have a practical scenario. A disk box, with iSCSI LUN, which is used by a linux box.
LUN fills up, and is resized on that disk box.

On linux side, lets rescan session, to get updated target size visible:
iscsiadm -m session -R

Lets assume, the partition is plain ext4 and available as /dev/sde1

parted /dev/sde

Parted should detect disk size update and notify about it
Warning: Not all of the space available to /dev/sde appears to be used, you can fix the GPT to use all of the space
(an extra 2147483648 blocks) or continue with the current setting?… Read the rest

Synology DSM 4 & 5 Openvpn client 7

I was pleasantly surprised when I did find out, that had added a VPN client in their DSM 4 release. This VPN client supports either PPTP or openvpn. Openvpn support is what I am interested in. Unfortunately openvpn wizard in DSM assumes that username authentication is used.… Read the rest

Code display in WordPress

I have accustomed in using <code></code> tags in my posts so that many posts have those tags.
Unfortunately , my WordPress theme in its default settings does not really distinguish code in <code></code> tags enough to be easily distinguishable from the rest of the text.… Read the rest

Upgrading old Gentoo installations 1

Sometimes for whatever reason You need to upgrade an old or really old Gentoo installation. Reinstall just is not an option. Upgrading old Gentoo installations is not really a plain sailing. All sorts of circular dependencies come up. For example portage is 2.1.6.13, bash is 3.2_p39 and python is 2.5.4.… Read the rest

Website statistics. Awstats and Adsense.

After years of relaying on Awstats for my web site statistics I also added Google Analytics. The final push came from adding Adsense. If I already have many external javascripts running on every page of my site, then one more makes no real difference. … Read the rest

Accurate LM35 readings

Sometimes LM35 analog temperature sensors give inconsistent readings. Reading fluctuations are simply too high. Specially if LM35 sensor is connected using a cable that is a meter long or longer.  There are some techniques tu compensate for those fluctuations and get more consistent readings.… Read the rest

Lowering the bounce rate

One thing that got my attention after installing Google analytics was bounce rate. The amount of visitors that see the first, landing, page of the site and leave.  The shortest and most accurate description for bounce rate I did encounter was ‘I came, I puked, I left’.… Read the rest

WordPress comment spam

During my usage of Drupal I had almost negligible amount of comment spam. About one or two per month. Those comments were usually containing some links to  not so useful web pages. I got used to removing those comments manually. After running my website on WordPress for a few days I got about 10 spam comments.… Read the rest