• How To Boot Cisco CUCM UCSInstall 8.6, 10, 11 and 12 on KVM/Proxmox


    The key thing is that you must use a "machine"id of "pc-1.3" or it will say your hardware is not supported. Additionally you MUST use a virtio disk or you will get a ks_pre.sh error as soon as the install starts (a look at logs will show it can't find a disk). This is funny because even though the OS finds the disk and an fdisk -l shows it, it looks like the script looks for a /dev/vda device (virtio) and nothing else, so if you didn't use Virtio as you........
  • Linux What is umask (user mask) for file and directory creation permissions and how to calculate umask and change the defaults


    umask are the default permissions that are applied when a file or directory are created. To see this in action simply just "touch filename" or "mkdir somedir" and you'll see what default permissions are applied. The first thing Ialways tell people you should know is to NEVER change the defaults unless you are making them more restrictive. But they work well and if you change the defaults you could end up creating a file without permission to read........
  • Linux Permissions and Groups Real Usecase for Group Access


    Ihave a directory structure which the primary user needs full access on but wanted a user to access only a specific directory within the main directory (so they could write in there only and nowhere else). Here's what Idid: [root@compevo8001 dllnow]# ls -alh drwxrwxr-x 2 someuser software 4.0K Oct 19 2017 ExpireYMD-2017-11-20 drwxrwxr-x 2 someuser software 4.0K Nov 19 2017 ExpireYMD-20........
  • Latest Articles

  • Linux qemu-kvm How To Enable Soundcard in Guestl
  • QEMU-KVM Windows and Server Guest Installs Mouse Tracking Pointer Location Solution
  • 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