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Articles tagged with: server admin

Humour, IT »

[28 Aug 2017 | Comments Off on man page humour | 67 views]

Found this little nugget in the “find” man page recently:
A ‘%’ character followed by any other character is discarded, but the other character is printed (don’t rely on this, as further format characters may be introduced). A ‘%’ at the end of the format argument causes undefined behaviour since there is no following character. In some locales, it may hide your door keys, while in others it may remove the final page from the novel you are reading.
Reminds me of a T-shirt I have:

$> man woman
$> Segmentation fault (core dumped)

IT »

[21 Aug 2016 | Comments Off on HeidiSQL and MySQL: Can’t connect to MySQL server on ‘’ (10061) | 1,197 views]
HeidiSQL and MySQL: Can’t connect to MySQL server on ‘’ (10061)

I installed XAMPP and HeidiSQL (the latter running under Wine) on my local Xubuntu 14.04 (LTS) system sometime in the last year or two. I’d used both before when I used to use Windows, and have had no problem using HeidiSQL to connect to external MySQL servers. However, I have had no success connecting to my local installation of MySQL. Not having time to deal with the issue (what seemingly inexplicable computer issue is ever resolved in a matter of minutes?!) I just left it and used phpMyAdmin that comes …

IT, Opinion »

[26 Nov 2014 | Comments Off on Deleting files under Linux/Unix | 455 views]

Today I came across a comment on a blog post related to deleting files on a Unix/Linux system that was a clear case of bullshit. I tried to post a comment to that effect on the blog in question, but the comment feature was broken. So, since I had already gone to the trouble of writing my response, and since I don’t post nearly as much to my own blog as I would like, I’ll just post it here instead.
To PoorMe, who claimed to have “just lost all of [his/her] …

IT »

[18 May 2013 | Comments Off on Port 25 open on Shaw connection | 446 views]

While doing some mail server testing, I happened to notice that port 25 outbound on my run-of-the-mill, consumer grade, non-static Shaw connection is open. I wonder if this is a mistake, or if they’ve abandoned the practice.

IT »

[28 May 2012 | Comments Off on Block outbound email to a specific domain with qmail | 485 views]

With Sendmail, I can block all email from (a sending domain to the server in question) and to a (foreign) domain using the /etc/mail/access file. However, apparently, it’s not so simple with qmail. Further complicating my need to prevent all users on one of my systems (which uses qmail) from sending email to certain domains is the fact that the system also uses Plesk, so I didn’t really want to start messing around with patching qmail and risk breaking something to do with Plesk.
After a fair bit of research I …

IT »

[28 Nov 2010 | Comments Off on Installing Zend Optimiser | 453 views]

I had a bit of an education on the confusing array of Zend products recently. A client needed Zend Optimizer (which, of course, Zend spells with a “z” to cater to the all-powerful American market) installed on their virtual private server (running Linux, of course), as the installation routine for a web application wouldn’t proceed without it. Fair enough. Some web applications are encoded so that they can’t be hacked (as opposed to cracked; see the difference), reverse engineered, modified, etc., and Zend Optimiser interprets the encoded PHP files so …