1. Introduction to Grub Briefly, a “boot loader” is the first software program that runs when a computer starts. It is responsible for loading and transferring control to an operating system “kernel” software (such as Linux or GNU Mach). The kernel, in turn, initializes the rest...
Sometime, we do see below error message from NS generates the following error: No default TTL set using SOA minimum instead. Understanding TTL will help us troubleshoot the issue related it. I hope below information will help you to understand about TTL
Not all configurations go as smoothly as you might like. When you’re troubleshooting the DHCP server, there are a few things to watch out for. For example, in the main config file, /etc/dhcp/dhcpd.conf, make sure that you end all your options with a semicolon (;). If...
Befor going for troubleshooting please confirm that you really having ” system hang “ Symptoms of System hang: System appears to be hung system is not pingable can not login can not execute commands can not mount shares can not start/stop services system not responding hanging...
Linux LVM / Storage Migrations / Unix Intermediate / VxVM Learning / VxVM Migrations / VxVM Troubleshooting
by Ramdev · Published March 26, 2022
Storage Operation VXVM RHEL LVM2 Installation and Configuration Installed using Veritas installer Installed as part of standard build via rpm Scan for new devices # vxdctl enable # vgscan Print list of volumes # vxprint -v # lvdisplay -C Print current config (detailed) # vxdg list # vgdisplay list volume...
Just running individual commands from the shell script is useful, but this has its limitations. Often, you’ll want to incorporate other data in your shell commands to process information. You can do this by using variables. Variables allow you to temporarily store information within the shell...
This is a step by step procedure to grow a root filesystem which is mirrored using Solstice Disksuite or Solaris Volume Manager. It is strongly recommended that a backup of the root filesystem be performed prior to following this procedure. Also, experience with the Disksuite or Solaris Volume...
1. What option can you change in the rsyslog config file to accept remote logs (acting as a centralized logging server)? 1a. Uncomment the following line in the /etc/rsyslog.conf file: #$ModLoad imudp.so #$UDPServerRun 514 2. What two commands are special for dealing with user login events?...
The inetd daemon The inetd daemon is best described as a super-server, created to manage many daemons or services. It listens to multiple ports, and invokes only requested services. This reduces the load that services place on a system, because it means that network services –...
Just discussing some of the common sendmail issues and troubleshooting procedures in linux Problem: Sendmail can not send mail to users in other domains. Problem: Error log in sendmail.log. Problem:Sendmail rejects connection. Problem:Can not send email via web access client. Problem: Sendmail hangs on boot Problem:...
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