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Articles by MH Tech.

Protecting .htaccess files from web application exploits.

March 16, 2016 MH Tech. 0

Over the last 18 months I have seen more and more new clients contacting me regarding their site being flagged by google as hosting malware […]

ERROR 2006 (HY000) MySQL server has gone away

March 2, 2016 MH Tech. 0

If you get this error when importing a mysql database add the following line to your /etc/my.cnf max_allowed_packet=573741824 The number should be larger than the […]

Export WordPress XML file to separate html files.

January 27, 2016 MH Tech. 0

I needed to quickly export all the articles in a WordPress install to separate html files.  There were over 400 posts so a copy and […]

Clearing the buffers and caches on Linux.

August 9, 2015 MH Tech. 0

I have been playing around with a couple of modules and monitoring their memory usage.  I wanted to clear the caches and buffers to give […]

What hard drives are in my Perc Raid Array

August 9, 2015 MH Tech. 0

I had a client who ordered a new server for me to configure.  The memory was not what was ordered so I checked out all […]

Plesk 12 Mailman relaying denied

July 7, 2015 MH Tech. 0

If you get “relay access denied” error messages on mailman and mailman messages are not going out then check to see if you have ::1/128‘ […]

Server Migration DNS Propagation Solution

June 13, 2015 MH Tech. 0

I have used this technique for a few years now so thought I should post it here as it doesn’t appear to break.

Cannot save sent message or Postfix permission problems.

March 12, 2015 MH Tech. 0

I started getting a “couldn’t save sent message” error message in thunderbird. I logged onto the server and restarted courier-imapd and postfix and retried. Still […]

How to find the biggest files or directories on the server?

November 15, 2014 MH Tech. 0

Just had a client call me due to the fact all the sites on his server were down. A quick check on disk space and […]

The GPG keys listed for the “CentOS / Red Hat Enterprise Linux 6 – atomicrocketturtle.com” repository are already installed but they are not correct for this package.

October 23, 2014 MH Tech. 0

Atomic are moving everything under one key. To fix this error run this command;

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