• VirtualBox Nested Virtual Machine Containers with KVM Not Working no SVM or VMX module in the guest


    I can't get vmx cpu extensions to show up in Virtualbox guests despite enabling nested paging and enable vmx in virtualbox guest but this doesn't help that you check VT-X or the AMD Virtualization SVM it enables it for the guest to use BUT does not pass it through. This means if you check cat /proc/cpuinfo in the guest you will see the CPUdoesn't support virtualization. It looks like VirtualBox still hasn't implemented this! But there is good news I&n........
  • [Hardware Error]: CPU:0 MC4_STATUS[-|CE|MiscV|-|AddrV|CECC]: 0x9c054c84011c011b [Hardware Error]: cache level: L3/GEN, tx: GEN, mem-tx: RD [Hardware Error]: Northbridge Error (node 0): L3 data cache ECC error.


    This server has been running for weeks without issue, it's currently only using 1 of 2 CPUs as it is running in the office as a test bed (mainly due to the handle 12 bay storage/great for testing HDDs). The errors below seem to mainly be from AMD CPUs, it's only happened a single time and in the days since Igot that error it hasn't occurrred. Interestingly enough /proc/cpuinfo still shows all 4 cores of the CPU (Opteron 2373 Quadcore HE) and the functionality doesn't seem........
  • LSI MegaRAID Adventures, Guide and HowTo


    LSi Megaraid At first it was configured as a RAID 0, then I deleted the Virtual Disk Group. I thought both drives would be shown and detected in Linux as sda and sdb but it actually shows nothing. To make them work you have to hit Ctrl+R before the system boots (when prompted) and create a Virtual Disk Group. In my case I created each one as RAID 0 (with a single drive only) as I just wanted JBOD but there is no such option or default in these Dell Pe........
  • Unixbench Score on Core i5 750 with OpenVZ Kernel vs Xen/Openvz


    This was unbelievable how much the Xen kernel slows things down, keep in mind both tests were done on the hostnode, one was with the Openvz-Xen hybrid kernel and the other was just OpenVZ. You can see the performance difference is nearly 300% better when not using the Xen kernel. OpenVZ-Xen Kernel Test Results (I was wondering what was wrong/so slow with my Core i5!) # # # # # #&n........
  • Compaq V2405CA Laptop - Unixbench Performance Test


    Here are the results, it is Sempron 3000+ AMD Mobile, 500Gig HDD, 512MB RAM with shared ATI Radeon graphics. # # # # # # # ##### ###### # # #### # # # # ## # # # #&nb........
  • Latest Articles

  • SSH Keep Alive To stop Disconnections
  • Linux How To Disable SATA NCQ For Better Performance
  • the sign-in method you're trying to use isn't allowed. For more info, contact your network administrator - solution for active directory
  • gsmartcontrol for Windows to Check the SMART S.M.A.R.T status
  • WebRTC Vulnerability Shows Local IP Address Even When Using a Proxy or VPN Firefox Fix And Disable Solution
  • chroot in Linux Howto Simple and Easy Guide
  • qemu-kvm qemu-system Image format was not specified for '/mnt/space/cucm12.img' and probing guessed raw. Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted. Specify the 'ra
  • Linux Over VNC VMWare How To Switch Virtual Terminals Console Without Using Ctrl+Alt+F1
  • Skype For Business 2015 and 2019 Guide, Reference, Howto and Troubleshooting Solutions
  • Centos 6 or 7 no DHCP IP during startup on first boot or reboot solution
  • Debian / Mint / Ubuntu net-tools packages provides netstat, ifconfig, route, arp and other classic network admin tools
  • Linux Mint XWindows Ubuntu MATE or Cinnamon How To Restart The GUI / Graphics / Session if it freezes without losing current windows or programs
  • Linux bash prompt why does it not show username@host and the current directory?
  • Microsoft SQL Server Check What Version is Running
  • How to install and setup LXC Containers (OpenVZ alternative) on Centos 6 / 7
  • Cisco CUCM Unified Communication Manager Howto Guide and Tutorials
  • SSH persistent and automatic login script for proxy
  • SSH proxy/command in the background or from cron script
  • ssh reverse proxy to enable remote access behind a LAN and firewall
  • How To Use Letsencrypt SSL/TLS Encryption to Create Certificates without installing on the target machine