Blog for Unix Admin / Solaris Admin / Solaris Installation / Solaris Troubleshooting
by Ramdev · Published December 20, 2021
Below is the Common procedure used to troubleshoot the error message “Timeout waiting for ARP/RARP packet” First identify the MAC address of the interface used to boot the client for the network installation. You can also use below procedures to identify the MAC address of the...
Linux tutorials / Recent Posts / Redhat Enterprise Linux 6 / RHEL7
by Shujat Husain · Published December 19, 2021
Root account in a Linux machine has access to each & every file/folder on the system. So unnecessary or irresponsible use of root is always a security threat & it’s use should always be limited. Also if every user begins to use root account, it will...
‘split’ creates output files containing consecutive or interleaved sections of INPUT (standard input if none is given or INPUT is ‘-‘). Synopsis: split [OPTION] [INPUT [PREFIX]] By default, ‘split’ puts 1000 lines of INPUT (or whatever is left over for the last section), into each...
Linux Admin / Linux Disk Management / Redhat Enterprise Linux 6 / Rhel6 Storage
by Ramdev · Published December 17, 2021
ISCSI Server Configuration on RHEL 6 Overall Steps : Install the RPM required for ISCSI Target Administration Enable the ISCSI Target Services Configure the ISCSI target to share the storage Attach Luns to the ISCSI Target Share the ISCSI Target to specific Client Machines Add...
I came across one unique parameter which I would like to share on our gurkulindia, specially for small business organisations where we dont have seperate power backups for DC. Has anyone noticed while working on Solaris boxes if you will power down (init 5 or poweroff...
Migration Case Study One of our Server currently installed with RHEL 5 and having LVM2 volumes that are created using SAN devices. Due to some application requirements, we want to reinstall the same host with RHEL6 and migrate the original RHEL5 based LVM2 volumes to RHEL6.
WHAT IS CLOUD COMPUTING? Google, Yahoo, Amazon, and others have built large, purpose-built architectures to support their applications and taught the rest of the world how to do massively scalable architectures to support compute, storage, and application services. Cloud computing is about moving services, computation and/or...
Installing required packages RHEL 5 has the Kdump packages installed by default. If for any reason they are not installed, you need to install the packages “kexec-tools-.rpm” and “system-config-kdump-.rpm” with the following commands: # rpm -ivh kexec-tools-.rpm system-config-kdump-.rpm or, if your system is registered at...
1. What command (and options) can be used to create a user named JSmith with the description “Jr Admin”? 1a. useradd –c “Jr Admin” JSmith 2. What is the format of the /etc/shadow file? 2a. The format of the /etc/shadow file is <username>:<encrypted password>:<last passwd change>:<min>:<max>:<warn>:<inactive>:<expires>:<not used>. 3....
hasys – add, modify, delete, display, or list information about a system. The hasys command allows administrators to manage information about each system. (A system is an object representing an individual computer within a cluster.)
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