Debian 11 uses Joe for visudo how to exit and how to change it to vi.
I have never used joe as an editor so when I ran visudo on a fresh install of Debian 11 I got stuck. I didn’t […]
WordPress – “Duplicate without user-selected canonical” error – /page/2?cat=-1
Google sent me this warning; It turns out that WordPress is creating /page/2 and /page/2?cat=-1 Add this to your themes function file to fix. It […]
Mysql Incorrect datetime value for a valid date/time
I was getting this error message. Incorrect datetime value: ‘2015-03-29 01:40:44’ After a lot of head scratching and googling. It a timezone issue I believe. […]
Preventing emails going out from your development environment.
This is just a short one. In /etc/postfix/main.cf Add the following line at the bottom. virtual_alias_maps = static:<your_username> Then in Thunderbird you can collect local […]
Extend the life of your Rasberry Pi SD card.
This is a simple one. Continuously writing logs to a Pi SD card will reduce it’s life span. Simply add these lines to your /etc/fstab […]
Attacked by an Amazon EC2 hosted botnet (Part 2) DNS server under attack.
So earlier this evening things started to slow down again and upon investigation discovered the attackers were now hitting my DNS servers. I applied the […]
Attacked by an Amazon EC2 hosted botnet.
One of my servers was struck by a password brute forcing attack from hundreds of IPs. This was initially mitigated by adding a new fail2ban […]
Yubi Key not working for Github
I recently did a fresh install of Linux rather than an upgrade and found that my YubiKey was no longer letting me into GitHub anymore. […]
Replace IP address across multiple SPF records in a MySQL server.
Just had to do this for a PowerDNS server. UPDATE `records` SET `content` = replace(content, ‘old_ip’, ‘new_ip’);
MySQL constraints preventing import of single table
One of those doh!! moments when you do something quickly to get it working and didn’t think through the consequences. I had 3 linked tables […]