User contributions for Saurabh
From Notes_Wiki
- 08:17, 12 April 2023 diff hist +1,288 N Event log error - The specified channel could not be found. Check channel configuration (15007) Created page with "Home > Windows > Microsoft Exchange Server > Event log error - The specified channel could not be found. Check channel configuration (15007) It is possible then on Exchange Server event log export does not works and throws error: <pre> The specified channel could not be found. Check channel configuration (15007) </pre> especially for "Microsoft Exchange with Database Availability Group Events" To solve the issue use following steps: # Note do..." current
- 08:17, 12 April 2023 diff hist +235 N Microsoft Exchange Server Created page with "Home > Windows > Microsoft Exchange Server *Event log error - The specified channel could not be found. Check channel configuration (15007) Home > Windows > Microsoft Exchange Server"
- 08:03, 12 April 2023 diff hist +188 m Rocky 8.x Desktop tools or applications
- 08:03, 12 April 2023 diff hist +1,205 N Rocky 8.x Gnome keyboard shortcuts Created page with "Home > Rocky Linux or CentOS > Rocky Linux 8.x > Desktop tools or applications > Gnome keyboard shortcuts ; Switching display options : If we want to switch between mirrored screen to display only going to first monitor to display going only to second monitor etc. we can use "Super + P" or "Windows + P". Refer https://askubuntu.com/questions/1056683/how-can-i-switch..." current
- 07:59, 12 April 2023 diff hist −41 m Rocky 8.x System Administration
- 07:58, 12 April 2023 diff hist +39 m Rocky 8.x System Administration
- 07:52, 12 April 2023 diff hist +68 m File transfer using public links current
- 10:30, 28 February 2023 diff hist +937 N Ubuntu HPC Execute parallel jobs Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > Execute parallel jobs #Login as user1 # Create '<tt>~/load.sh</tt>' file with the below information <source type="shell"> #! /bin/bash #PBS -N stressjob #PBS -q testq1 #PBS -V #PBS -l nodes=3 module load mpi/mpi-4.1.1 mpirun -host node1,node2,node3 -n 3 /usr/bin/stress --cpu 2 --vm 5 --vm-bytes 1G --timeout 60s </sour..." current
- 10:26, 28 February 2023 diff hist +274 m Ubuntu HPC master and compute node network setup current
- 10:20, 28 February 2023 diff hist +1,228 N Ubuntu HPC Configure PBS job scheduler Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > Configure PBS job scheduler #Login to master node via root. Add nodes to PBS. #:<pre> #:: qmgr #Further on Qmgr: prompt use below #:: #:: create node <node1> #:: create node <node2> #:</pre> #: This should be done for all compute nodes #Check PBS information. All three nodes should be visible #:<pre> #:: pbsno..."
- 10:16, 28 February 2023 diff hist +1,213 N Ubuntu HPC Setup PBS execution on compute nodes Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > Setup PBS execution on compute nodes To setup PBS execution on all compute nodes #Install pbs execution Debian package on all compute nodes using: #:<pre> #:: cd /export/apps/temp/openpbs_20.0.1.ubuntu_1804/ #:: dpkg -i openpbs-execution_20.0.1-1_amd64.deb #:</pre> #Configure master hostname in '<tt>/etc..." current
- 10:14, 28 February 2023 diff hist −4 m Ubuntu HPC NIS client setup on compute nodes current
- 10:04, 28 February 2023 diff hist +313 m Ubuntu HPC Setup PBS master on master node current
- 10:00, 28 February 2023 diff hist +1,245 m Ubuntu HPC Setup PBS master on master node
- 09:13, 27 February 2023 diff hist +395 N Ubuntu HPC Setup PBS master on master node Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > Setup PBS master on master node Home > Ubuntu > HPC setup with openpbs and openmpi > Setup PBS master on master node"
- 05:02, 27 February 2023 diff hist +3 m Ubuntu HPC Install and Configure Modules current
- 05:01, 27 February 2023 diff hist +1,664 N Ubuntu HPC Install and Configure Modules Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > Install and Configure Modules #Create directory for modules path in master node share path #:<pre> #:: mkdir -p /export/modules/ #:</pre> #Configure mpi module file in master node ##Create directory for mpi ##:<pre> ##:: mkdir -p /export/modules/mpi ##:: cd /export/modules/mpi ##:</pre> ## Create mpi-4.1.1 modu..."
- 04:44, 27 February 2023 diff hist +245 m Ubuntu HPC Common setup of all HPC nodes
- 04:37, 27 February 2023 diff hist +94 m Ubuntu HPC Common setup of all HPC nodes
- 04:35, 27 February 2023 diff hist +2,694 N Ubuntu HPC Install Openmpi from master node Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > Install Openmpi from master node We can install OpenMPI using source code by using: #Create temporary directory for compilation of sources. Download openmpi tar ball and extract sources in temporary compilation folder. #:<pre> #:: mkdir -p /export/apps/temp #:: cd /export/apps/temp #:: wget https://www.open..."
- 03:58, 27 February 2023 diff hist +167 m Ubuntu HPC setup with openpbs and openmpi
- 03:57, 27 February 2023 diff hist +105 m CentOS 7.x Rocks cluster 7.0 current
- 05:05, 25 February 2023 diff hist +2,112 m Ubuntu HPC NFS client on compute nodes current
- 04:47, 25 February 2023 diff hist +222 m Rocky 8.x System Administration
- 04:46, 25 February 2023 diff hist +1,328 N Rocky 8.x Finding DHCP offer and options without changing actual interface settings Created page with "Home > Rocky Linux or CentOS > Rocky Linux 8.x > System Administration > Finding DHCP offer and options without changing actual interface settings It is possible to make DHCP request on an interface without changing any settings. This way we can find out what IP and other options such as DNS, lease-time etc. DHCP server provi..." current
- 07:44, 24 February 2023 diff hist −5 m Ubuntu HPC NIS server setup on master node
- 07:43, 24 February 2023 diff hist −4 m Ubuntu HPC NIS client setup on compute nodes
- 07:43, 24 February 2023 diff hist +131 m Ubuntu HPC NIS server setup on master node
- 06:42, 24 February 2023 diff hist +136 m CentOS 9.x Configure basic NFSv4 server for sharing folders between two machines current
- 06:13, 24 February 2023 diff hist +305 m Install Nvidia graphics card driver on Ubuntu along with cuda libraries current
- 06:10, 24 February 2023 diff hist +185 m CentOS 7.x Install nvidia drivers and cuda library current
- 05:57, 24 February 2023 diff hist +234 m CentOS 7.x Install nvidia drivers and cuda library
- 05:47, 23 February 2023 diff hist +1,334 N Ubuntu HPC NIS client setup on compute nodes Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > NIS client setup on compute nodes #Install NIS packages #:<pre> #:: apt -y install nis nscd #:</pre> #: During installation mention correct NIS domain as setup on master node. #Add below line in '<tt>/etc/yp.conf</tt>' file #:<pre> #:: domain <private-domain> server master #:</pre> #Add nis based re..."
- 05:33, 23 February 2023 diff hist +17 m Ubuntu HPC NIS server setup on master node
- 05:26, 23 February 2023 diff hist +1,560 N Ubuntu HPC NIS server setup on master node Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > NIS server setup on master node #Install NIS packages and give nis domain name #:<pre> #:: apt -y install nis nscd #:</pre> #: During installation enter private domain name for NIS #Configure this server as NIS master server by editing '<tt>/etc/default/nis</tt>' and updating below two parameter values: #:<pr..."
- 04:53, 23 February 2023 diff hist +23 m Ubuntu HPC NTP server setup on master node current
- 04:53, 23 February 2023 diff hist +23 m Ubuntu HPC NTP client setup on compute nodes current
- 04:32, 23 February 2023 diff hist +1,022 N Ubuntu HPC NTP client setup on compute nodes Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > NTP client setup on compute nodes To configure client nodes to take their time update from master use: #Install ntp package #:<pre> #:: apt install -y ntp ntpdate #:</pre> #Edit '<tt>/etc/ntp.conf</tt>' file and '''keep only master server''' as follows: #:<pre> #:: server master prefer iburst #:</pre> # Se..."
- 04:30, 23 February 2023 diff hist +85 Ubuntu HPC NTP server setup on master node
- 04:30, 23 February 2023 diff hist +146 m Ubuntu HPC NTP server setup on master node
- 04:26, 23 February 2023 diff hist +54 m Ubuntu HPC DNS setup on master node current
- 04:26, 23 February 2023 diff hist +955 N Ubuntu HPC NTP server setup on master node Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > NTP server setup on master node #Install ntp package #:<pre> #:: apt install -y ntp ntpdate #:</pre> #Edit '<tt>/etc/ntp.conf</tt>' file and append time.google.com server as follows: #:<pre> #:: server time.google.com #:</pre> # Set correct time on current system using: #:<pre> #:: ntpdate -b time.google.com..."
- 04:09, 23 February 2023 diff hist +123 m Ubuntu HPC NFS client on compute nodes
- 04:09, 23 February 2023 diff hist +97 m Ubuntu HPC NFS server setup on master node current
- 04:07, 23 February 2023 diff hist +158 m Ubuntu HPC NFS server setup on master node
- 04:04, 23 February 2023 diff hist +101 m Ubuntu HPC DNS setup on compute node current
- 04:02, 23 February 2023 diff hist +1 m Ubuntu HPC DNS setup on master node
- 04:00, 23 February 2023 diff hist +97 m Ubuntu HPC DNS setup on master node
- 03:38, 23 February 2023 diff hist +63 m Ubuntu Server or Desktop administration
- 03:38, 23 February 2023 diff hist +873 N Ubuntu 20.04 Execute command at system boot using crontab Created page with "Home > Ubuntu > Server or Desktop administration > Ubuntu 20.04 Execute command at system boot using crontab In case of Ubuntu 20.04 if we need to execute any command after system boot (the way used to happen via /etc/rc.d/rc.local long back), we can do the same via cron using: # Type below to open cron editing for current user (eg root) #:<pre> #:: crontab -e #:</pre> # In the cron file enter command to..." current
- 08:09, 21 February 2023 diff hist +236 Ubuntu HPC DNS setup on compute node
- 08:09, 21 February 2023 diff hist +237 m Ubuntu HPC DNS setup on master node
- 07:49, 21 February 2023 diff hist +256 m Ubuntu HPC master and compute node network setup
- 04:58, 21 February 2023 diff hist −9 m CentOS 8.x Zabbix installation
- 09:41, 18 February 2023 diff hist +529 m Install ESXi patch via depot zip file current
- 09:19, 17 February 2023 diff hist +185 m Ubuntu HPC setup with openpbs and openmpi
- 09:19, 17 February 2023 diff hist +2 m Ubuntu HPC NFS client on compute nodes
- 09:19, 17 February 2023 diff hist +860 N Ubuntu HPC NFS client on compute nodes Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > NFS client on compute nodes #Install NFS client packages on compute node #:<pre> #:: apt install -y nfs-common #:</pre> #Create mount directory #:<pre> #:: mkdir /export #:</pre> #Mount master node /export directory in compute node via '<tt>/etc/fstab</tt>' using: #:<pre> #:: <masternodename>:/export /export..."
- 09:08, 17 February 2023 diff hist +106 m Ubuntu HPC master and compute node network setup
- 09:01, 17 February 2023 diff hist +195 m Ubuntu HPC Common setup of all HPC nodes
- 08:59, 17 February 2023 diff hist +805 N Ubuntu HPC DNS setup on compute node Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > DNS setup on compute node To configure correct DNS settings on compute node use: # First test DNS resolution via master using: #:<pre> #:: nslookup node<n>.<private-zone> <master-private-ip> #:</pre> # Then configure appropriate DNS and search domain using: #:<pre> #:: resolvectl domain <private-interface> <privat..."
- 08:53, 17 February 2023 diff hist +1,850 N Ubuntu HPC DNS setup on master node Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > DNS setup on master node The nodes in HPC cluster should resolve each other via both short name and FQDN. To help with host resolution centrally, we can setup DNS on master using: # Install bind9 package using: #:<pre> #:: apt -y install bind9 #:</pre> # Edit '<tt>/etc/bind/named.conf.options</tt>' to include:<sour..."
- 08:40, 17 February 2023 diff hist 0 m Configuring basic DNS service with bind current
- 08:08, 17 February 2023 diff hist +1,690 N Ubuntu HPC master and compute node network setup Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > Master and compute node network setup After initial template is built using Ubuntu HPC Common setup of all HPC nodes, we need to differentiate between master and compute nodes from network perspective. # '''On compute nodes''' disable firewall using: #:<pre> #:: systemctl stop ufw #:: systemctl dis..."
- 07:53, 17 February 2023 diff hist +8 m Ubuntu HPC NFS server setup on master node
- 07:51, 17 February 2023 diff hist +56 N Ubuntu NFS server setup on master node Saurabh moved page Ubuntu NFS server setup on master node to Ubuntu HPC NFS server setup on master node: Better naming current Tag: New redirect
- 07:51, 17 February 2023 diff hist 0 m Ubuntu HPC NFS server setup on master node Saurabh moved page Ubuntu NFS server setup on master node to Ubuntu HPC NFS server setup on master node: Better naming
- 07:48, 17 February 2023 diff hist +517 Ubuntu HPC setup with openpbs and openmpi
- 07:48, 17 February 2023 diff hist +1,047 N Ubuntu HPC NFS server setup on master node Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > NFS server setup on master node Create ext4 lvm partition with required space to be shared with clients. Mount created lvm partition on /export via UUID using /etc/fstab # Create home folder under /export #:<pre> #:: mkdir -p /export/home #:</pre> #Install NFS packages #:<pre> #:: apt install -y nfs-kernel-server..."
- 07:45, 16 February 2023 diff hist −4 m Storing date / time along with commands in history current
- 05:59, 15 February 2023 diff hist +9 m Ubuntu HPC Common setup of all HPC nodes
- 05:54, 15 February 2023 diff hist +1,980 N Ubuntu HPC Common setup of all HPC nodes Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi > Common setup of all HPC nodes Plan is to create an Ubuntu 20.04 template using below steps. Then we can clone the template to master / execution nodes and configure those nodes individually separately. For common node (template) setup use: # Install Ubuntu 20.04 Desktop with most default values. Non-root user..."
- 05:45, 15 February 2023 diff hist +278 N Ubuntu HPC setup with openpbs and openmpi Created page with "Home > Ubuntu > HPC setup with openpbs and openmpi *Ubuntu HPC Common setup of all HPC nodes Home > Ubuntu > HPC setup with openpbs and openmpi"
- 05:43, 15 February 2023 diff hist +110 m Installing Hadoop 2.2.0 on single Ubuntu 12.04 x86 64 Desktop current
- 05:43, 15 February 2023 diff hist +110 m Installing Hadoop 2.2.0 cluster on Ubuntu 12.04 x86 64 Desktops current
- 05:42, 15 February 2023 diff hist +2 m Ubuntu Server or Desktop administration
- 05:42, 15 February 2023 diff hist +158 m Detecting RAID partitions using Ubuntu Live CD or USB current
- 05:41, 15 February 2023 diff hist +41 m Ubuntu
- 05:41, 15 February 2023 diff hist −41 m Ubuntu Server or Desktop administration
- 05:41, 15 February 2023 diff hist +76 m Configuring Samba service in Ubuntu current
- 05:40, 15 February 2023 diff hist +158 m Configuring Ubuntu machine as LDAP client current
- 05:40, 15 February 2023 diff hist +238 m Troubleshooting Ubuntu specific issues current
- 05:40, 15 February 2023 diff hist +158 m Blank screen after grub menu with Ubuntu-server installation current
- 05:40, 15 February 2023 diff hist +158 m Cdrom related errors while using apt after installation current
- 05:39, 15 February 2023 diff hist +158 m Print request getting held in Ubuntu 14.04 with HP Laserjet 1020 series printer current
- 05:39, 15 February 2023 diff hist +157 m Iptables-persistent package fails to install on Ubuntu 12.04 current
- 05:38, 15 February 2023 diff hist +160 m Installing Java on Ubuntu 12.04 x86 64 Desktop current
- 05:38, 15 February 2023 diff hist +157 m Add Ubuntu 16.04 to Windows AD domain current
- 05:38, 15 February 2023 diff hist +159 m Persistent firewall in Ubuntu current
- 05:37, 15 February 2023 diff hist +157 m Fully update Ubuntu system current
- 05:37, 15 February 2023 diff hist +160 m Configure static IP in ubuntu system current
- 05:37, 15 February 2023 diff hist +175 m Install Nvidia graphics card driver on Ubuntu along with cuda libraries
- 05:37, 15 February 2023 diff hist +160 m Fix Ubuntu graphics issues with virtualization or with graphics card in VM current
- 05:36, 15 February 2023 diff hist +160 m Fix offending key issue while doing SSH from Ubuntu current
- 05:34, 15 February 2023 diff hist +80 m Installing Ubuntu on LVM partition current
- 05:34, 15 February 2023 diff hist +79 m Installing android sdk in Ubuntu current
- 05:33, 15 February 2023 diff hist +158 m Package management in Ubuntu
- 05:32, 15 February 2023 diff hist +1,044 N Ubuntu Server or Desktop administration Created page with "Home > Ubuntu > Server or Desktop administration *Package management in Ubuntu *Installing android sdk in Ubuntu *Installing Ubuntu on LVM partition *Detecting RAID partitions using Ubuntu Live CD or USB *Configuring Samba service in Ubuntu *Configuring Ubuntu machine as LDAP client *Troubleshooting Ubuntu specific issues *Installing Java on Ubuntu 12.04 x86_64 Desktop *Add U..."
- 05:32, 15 February 2023 diff hist +316 N Ubuntu Hadoop cluster setup Created page with "Home > Ubuntu > Hadoop cluster setup *Installing Hadoop 2.2.0 on single Ubuntu 12.04 x86_64 Desktop *Installing Hadoop 2.2.0 cluster on Ubuntu 12.04 x86_64 Desktops Home > Ubuntu > Hadoop cluster setup" current
- 05:32, 15 February 2023 diff hist −733 m Ubuntu