• mdadm how to stop a check


    Is a mdadm check on your trusty software RAID array happening at the worst time and slowing down your server or NAS? cat /proc/mdstat Personalities : [raid1] [raid10] md127 : active raid10 sdb4[0] sda4[1] 897500672 blocks super 1.2 2 near-copies [2/2] [UU] [==========>..........] check = 50.4% (452485504/897500672) finish=15500.3min speed=478K/sec ........
  • MySQL Using mytop Debug Source of High IO and Slow Performance


    mytop is one of my favorite tools and it is fairly simple aside from a few caveats and issues that persist to this day. To install it on Centos: yum -y install centos Configure ~/.mytop vi ~/.mytop user=root host=localhost db=test #port=3306 socket=/var/lib/mysql/mysql.sock header=1 color=1 Try runni........
  • Flash slowing down your Firefox browser? Install Flashblock plugin


    Install the "Flashblock" plugin because we all know most unwanted high CPU usage situations come from the browser usually because of a looping Flash ad taking up 100% CPU. The solution is to install the "Flashblock" plugin that doesn't allow any Flash to load and play unless you click on the placeholder.........
  • mysql enable slow query logging/Query Cache Solution - find/track cause of slow mysqld/high IO/CPU usage


    If you have a webserver and find you have high IO/lagginess MySQL is one of the first things to check. It turns out MySQL was my problem and it was creating a high load on my server, especially for IO. How to Enable MySQL Slow Query Logging To Find Slow Performance/Queries vi /etc/my.cnf Add this anywhere under [mysqld] #slow queries log-slow-queries = /var/log/mysql/mysqlslowqueries.log long_query_time = 1........
  • Fix Slow 2D Graphics Xorg.conf Ubuntu/Debian/Mandriva Linux


    I'm using Ubuntu 8.04 but anyone using older kernels will find this may apply to them. My Intel graphics are very slow with the default Xorg settings but by using "EXA" acceleration, scrolling down windows of text becomes pretty snappy. Just edit /etc/X11/xorg.conf Section "Device" Identifier "Configured Video Device" &nb........
  • Latest Articles

  • Recommended SFP+ to RJ45 Adapter Module for Switch Juniper Cisco Ubiquiti TP-Link etc...
  • Bad Power Supply Issue Story Diagnosing Troubleshooting
  • Getting started with AI (Artificial Intelligence) in Linux / Ubuntu using by deploying LLM (Language Learing Models) using Ollama LLMA
  • microk8s kubernetes how to install OpenEBS
  • Flash LSI MegaRAID 2208 to IT mode in Linux Mint/Debian/Ubuntu
  • LSI MegaRAID in Linux Ubuntu / Centos Tutorial Setup Guide megacli
  • Convert-im6.q16: attempt to perform an operation not allowed by the security policy `PDF' @ error/constitute.c/IsCoderAuthorized/413. convert-im6.q16: no images defined `pts-time.jpg' @ error/convert.c/ConvertImageCommand/3258. solution ImageMagick P
  • Apache PHP sending expires header solution cannot use cache with CDN
  • How to install virt-manager in Mint 22/Ubuntu 22
  • Infiniband Guide
  • python mysql install error: /bin/sh: 1: mysql_config: not found /bin/sh: 1: mariadb_config: not found /bin/sh: 1: mysql_config: not found mysql_config --version
  • FreePBX 17 How To Add a Trunk
  • Docker Container Onboot Policy - How to make sure a container is always running
  • FreePBX 17 How To Add Phones / Extensions and Register
  • Warning: The driver descriptor says the physical block size is 2048 bytes, but Linux says it is 512 bytes. solution
  • Cisco How To Use a Third Party SIP Phone (eg. Avaya, 3CX)
  • Cisco Unified Communication Manager (CUCM) - How To Add Phones
  • pptp / pptpd not working in DD-WRT iptables / router
  • systemd-journald high memory usage solution
  • How to Install FreePBX 17 in Linux Debian Ubuntu Mint Guide