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(newest | oldest) View (newer 20 | older 20) (20 | 50 | 100 | 250 | 500)- 11:17, 21 May 2022 Saurabh talk contribs created page CentOS 9.x (Created page with "Home > CentOS > CentOS 9.x *CentOS 9.x file sharing")
- 03:27, 20 May 2022 Saurabh talk contribs created page Creating RDSH Automatic Instant Clone Farms (Created page with "Home > VMWare platform > VMWare Horizon > Creating RDSH Automatic Instant Clone Farms =Theory= In case of Desktop OS pools with dedicated VM per user we can create the pool directly using Golden images as explained at Creating Windows 2019 or Windows 10 Desktop Pool. However in case of RDSH shared desktop pools using Windows server OS where a single VM can be used by multiple users concurrently, we need to first create a farm of RDS hosts...")
- 02:59, 20 May 2022 Saurabh talk contribs created page AD Configuration required for various Windows RDSH or Desktop pools (Created page with "Home > VMWare platform > VMWare Horizon > AD Configuration required for various Windows RDSH or Desktop pools For users to be able to remotely login into the VMs created as part of Horizon, we need to create following OUs, groups and policies: # Open Active Directory users and computers ## Create OU for VDI ## Create new sub=OU for VMs ## Create group for Desktop pool users under main VDI OU. If you are planning to create five different VDI po...")
- 02:47, 20 May 2022 Saurabh talk contribs created page Horizon Connection server installation (Created page with "Home > VMWare platform > VMWare Horizon > Horizon Connection server installation =Pre-requisites= Before setting up a Horizon connection server we should have: # Working VMWare ESXi and vCenter setup with shared storage and adequate spare hardware resources (RAM, Disk, CPU, etc.) # Working AD server along with domain administration access to AD server #: Domain AD credentials should be available as a service account without any password expiry....")
- 02:27, 20 May 2022 Saurabh talk contribs created page ESXi boot issues (Created page with "Home > VMWare platform > VMWare vSphere or ESXi > ESXi boot issues It is possible for ESXi to not boot properly with errors such as: <pre> SINIT Authenticated Code Module detected an intel Trusted Execution Technology(TXT) problem at boot. </pre> These are caused due to TPM module. Clearing TPM module or resetting (Restarting) iDRAC does not seems to help. In such cases we need to do a cold reboot (Full poweroff and then after waiting sometim...")
- 05:08, 19 May 2022 Saurabh talk contribs created page Restart rsync on failure via shell script (Created page with "Home > Shell scripting > Useful bash shell scripts > Restart rsync on failure via shell script It is possible to create shell script to restart rsync, if it exits with failure status (non-zero return value) using: <pre> #!/bin/bash while [ 1 ] do <rsync-command> if [ "$?" = "0" ] ; then echo "rsync completed normally" exit else echo "Rsync failed. Retrying..." sleep 180 fi done </pre> Here replac...")
- 15:24, 16 May 2022 Saurabh talk contribs created page Test connectivity when using multiple tcp/ip stacks (Created page with "Home > VMWare platform > VMWare vSphere or ESXi > Test connectivity when using multiple tcp/ip stacks It is possible for ESXi host to use multiple TCP/IP stacks. In that case to validate connectivity between two ESXi hosts use: # Get list of network stacks using: #:<pre> #:: esxcli network ip netstack list #:</pre> # Understand which vmkernel port is using which TCP/IP stack using: #:<pre> #:: esxcli network ip interface list | grep -i 'name\...")
- 15:21, 16 May 2022 Saurabh talk contribs created page Troubleshooting vSAN issues (Created page with "Home > VMWare platform > vMWare VSAN > Troubleshooting vSAN issues =Host cannot communicate with one or more other nodes in the vSAN enabled cluster= There can be possibility of error such as: <pre> Host cannot communicate with one or more other nodes in the vSAN enabled cluster </pre> esp. after some kind of network disconnection OR incorrect shutdown / boot procedure. To solve that: # ping from one host to all other hosts and va...")
- 17:58, 15 May 2022 Saurabh talk contribs created page CentOS 8.x Control Web panel Whitelist or Blacklist IP or email or domain in postfix (Created page with "Home > CentOS > CentOS 8.x > CentOS 8.x email servers > CentOS 8.x Control Web panel > Whitelist or Blacklist IP or email or domain in postfix Normally logwatch emails might be sent to root@localhost and via /etc/aliases and combination of CentOS 8.x postfix send email through relay or smarthost with smtp authentication might get delivered to intend...")
- 17:54, 15 May 2022 Saurabh talk contribs created page CentOS 8.x Control Web panel Migrate web and email domain from existing server (Created page with "Home > CentOS > CentOS 8.x > CentOS 8.x email servers > CentOS 8.x Control Web panel > Migrate web and email domain from existing server Control Web Panel (CWP) is suited for email and web virtual hosting. Creating a greenfield domain should be straight forward. However, if you want to migrate existing site and emails to CWP based server use following steps...")
- 17:48, 15 May 2022 Saurabh talk contribs created page CentOS 8.x Control Web panel Initial configuration (Created page with "Home > CentOS > CentOS 8.x > CentOS 8.x email servers > CentOS 8.x Control Web panel > Initial configuration Once installed initial configuration of CWP can be done as follows: # After Web login on https://<server-fqdn-or-ip>:2031/, click "Set Root Email" and update "Admin Email" #: Ideally also select "Forward server system emails" checkbox # If you are planning to host emails th...")
- 17:43, 15 May 2022 Saurabh talk contribs created page CentOS 8.x Control Web panel Installation on linode (Created page with "Home > CentOS > CentOS 8.x > CentOS 8.x email servers > CentOS 8.x Control Web panel > Installation on linode To use Control Web panel (CWP) on CentOS8-Stream linode use: # Create a linode with CentOS8-Stream OS with at least 2 GB RAM. #: Ideally setup public key based access #: Configure a root password also. This is required later to login into CWP. # SSH to linode as root user an...")
- 17:41, 15 May 2022 Saurabh talk contribs created page CentOS 8.x Control Web panel (Created page with "Home > CentOS > CentOS 8.x > CentOS 8.x email servers > CentOS 8.x Control Web panel *CentOS 8.x Control Web panel Installation on linode *CentOS 8.x Control Web panel initial configuratoin *CentOS 8.x Control Web panel Migrate web and email domain from existing server *CentOS 8.x Control Web panel Whitelist or Blacklist IP or email or domain in postfix")
- 08:57, 15 May 2022 Saurabh talk contribs created page CentOS 8.x mediawiki include multi-line source code (Created page with "Home > CentOS > CentOS 8.x > Web based tools > mediawiki > CentOS 8.x mediawiki include multi-line source code It is often required to have source included as part of article within numbered text such as done at CentOS 8.x Systemd based reverse ssh tunnel service For that we need to use something like: <pre> # First # Second <source line lang="CSharp">Some Multi Line C Sharp Code </so...")
- 08:52, 15 May 2022 Saurabh talk contribs created page CentOS 8.x Systemd based reverse ssh tunnel service (Created page with "Home > CentOS > CentOS 8.x > CentOS 8.x Security tools > CentOS 8.x Systemd based reverse ssh tunnel service In case anydesk/teamviewer are proving unreliable there is option to connect to an internal server behind NAT using reverse ssh. For this we create service on internal server which does SSH to a public server via public key and creates reverse ssh tunnel from public server to itself. Anyone who has SSH access to public server, ca...")
- 17:26, 13 May 2022 Saurabh talk contribs created page ESXi losses all vmkernel or ip configuration (Created page with "Home > VMWare platform > VMWare vSphere or ESXi > ESXi losses all vmkernel or ip configuration While changing vMkernel IPs on very slow VPN connecting using vCenter web interface, had to refresh a browser a few times. After that ESXi seems to have lost all its configuration. Rebooting it also did not help. It was connected to vCenter, showing as part of distributed switch but all vMkernel adapters were not visible. To solve this restored ES...")
- 14:40, 13 May 2022 Saurabh talk contribs created page Get Dell OS 10 switch service tag using cli (Created page with "Home > Switch configuration notes > Get Dell OS 10 switch service tag using cli To get OS 10 switch service tag use: <pre> show inventory </pre> Refer: * https://www.dell.com/support/kbdoc/en-us/000187055/dell-emc-networking-how-to-find-the-service-tag-in-a-s6100-on-switch Home > Switch configuration notes > Get Dell OS 10 switch service tag using cli")
- 14:14, 13 May 2022 Saurabh talk contribs created page Breaking 40G QSFP+ to 4x10G SFP+ in Dell OS 10 switches (Created page with "Home > Switch configuration notes > Breaking 40G QSFP+ to 4x10G SFP+ in Dell OS 10 switches In OS 10 switches to convert a 40/100G port to 4x10G SFP+ when connected using 40G to 4x10G DAC cable use: <pre> config t interface breakout <interface> map 10g-4x </pre> where <interface> should be replaced with number such as 1/1/15 Refer: * https://dl.dell.com/topicspdf/smrtfab-os10-5-2_ug_en-us_en-us.pdf '''Note: ''' There is also mention...")
- 13:59, 13 May 2022 Saurabh talk contribs created page CentOS 8.x create or extend lvm partition with striping (Created page with "Home > CentOS > CentOS 8.x > System Administration > Filesystem management > CentOS 8.x create or extend lvm partition with striping =Create striped lvm partition= In case of physical disks (not in case of central storage where LUNs are coming from same pool), we can increase performance of a partition by doing striping (RAID 0) over various independent disks. To config...")
- 09:58, 11 May 2022 Saurabh talk contribs created page CentOS 7.x Rocks cluster 7.0 Update master and all compute nodes (Created page with "Home > CentOS > CentOS 7.x > CentOS 7.x Rocks cluster 7.0 > CentOS 7.x Rocks cluster 7.0 Update master and all compute nodes =Update master= To update use: # Edit files in '<tt>/etc/yum.repos.d/</tt>' and set enable=1. At least enabled repositories in: #* CentOS-Base.repo #* epel.repo #* rpmforge.repo # '''Ensure that''' in /etc/yum.conf, caching is enabled: #:<pre> #:: keepcache=1 #:</pre> # Then update the master node fully using: #:<pr...")