If you’ve ever had to utilize a hosting provider that offers the option to buy extra IPs or failover IP addresses, you may have observed instances where these IPs shared the same gateway as your original IPs, rather than being part of the additional IP network. Here are some of the providers I’m aware of … Read more
So if you’ve ever had to increase table_open_cache in Ubuntu 20, you’ll probably find that it doesn’t work the traditional way. Which is mind blowing! But I have a guess as to why. It’s to stop you from blowing up your server from too many open files! I had updated /etc/mysql/mysql.conf.d/mysqld.cnf with the following However, … Read more
You might noticed MySQL statistics aren’t being show in Netdata. Here’s what I ran into. Error: “MySQLdb or PyMySQL module is needed to use mysql.chart.py plugin” The required python libraries for MySQL are missing, so you simply need to install them. For Ubuntu/Debian the following command should correct it. Setting up Netdata MySQL User You … Read more
This took way too long to figure out and it’s my own fault as I do have a good understanding of networking. When you order additional IP’s from So You Start, you’re usually giving IP’s in a different range the main IP address of your server. This might confuse some because of how traditional networking … Read more
So I was having issues with deploying Ubuntu 18 guests on a Xen hypervisor. It originally started with a template for bionic not existing. This is easily fixed with a couple of commands to copy the karmic.d template to bionic.d template. However, once your host boots up. You’re now faced with a network issue as … Read more
Run the following commands. wget http://ftp.us.debian.org/debian/pool/main/n/netselect/netselect_0.3.ds1-28+b1_amd64.debdpkg -i netselect_0.3.ds1-28+b1_amd64.deb https://askubuntu.com/questions/39922/how-do-you-select-the-fastest-mirror-from-the-command-line
We had a 32bit Ubuntu server that was getting pegged due to the lack of memory it was able to use when observium was kicking off it’s cron. So I decided to move Observium to a 64bit Ubuntu server. Unfortunately when trying to run the poller, the following error appeared. ERROR: This RRD was created on … Read more
If you’re about to build packages apt-get install build-essential If you can’t find debbuild apt-get install devscripts You receive the following error dh: unable to load addon quilt: Can’t locate Debian/Debhelper/Sequence/quilt.pm in @INC (you may need to install the Debian::Debhelper::Sequence::quilt module) (@INC contains: /etc/perl /usr/local/lib/perl/5.18.2 /usr/local/share/perl/5.18.2 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.18 /usr/share/perl/5.18 /usr/local/lib/site_perl .) at (eval 13) … Read more
I just started playing with XenServer/XenCenter 6.5 and found a couple of templates required ISO images. Specifically Ubuntu 14.04 LTS Trusty Tahr due to a bug, you can google it. Other Images like Ubuntu 12.04 Precise Pangolin didn’t require an ISO and just needed a URL to install. Funny enough this failed for me, I was … Read more
Sometimes you might get the following error message in your logs for your Tomcat instance under Ubuntu. The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found To fix this issue, simply run the following command to install the appropriate library. apt-get install libtcnative-1 The error … Read more