In this post we will discuss about the commands to check DNS configuration and functions for sendmail. Follow these steps to: ensure dns client configuration is in place and enabled; verify mail exchanger lookups are successful (if using DNS for mail exchanger lookups). To resolve error...
The idea behind running BIND in a chroot jail is to limit the amount of access any malicious individual could gain by exploiting vulnerabilities in BIND. It is for the same reason that we run BIND as a non-root user. This should be considered as a...
The idea behind running BIND in a chroot jail is to limit the amount of access any malicious individual could gain by exploiting vulnerabilities in BIND. It is for the same reason that we run BIND as a non-root user. This should be considered as a...
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
Types of DNS servers 1. Root Servers: Root servers are positioned at the top or root of the DNS hierarchy, and maintain data about each of the top-level zones. The root servers are maintained by the NIC and have been moved to a common domain for consistent...
Information Centers / Site Reference / Solaris DNS / Sticky posts
by Ramdev · Published September 1, 2015 · Last modified September 19, 2019
Read – How DNS Name Resolution works Read – chroot the BIND DNS server Read – TTL settings on DNS Read – Checking DNS settings to troubleshoot sendmail Read – Types of DNS Servers Read – configure forward DNS server, to send queries to external server...
Blog for Unix Admin / Solaris Admin / Solaris DNS
by Ramdev · Published June 22, 2011 · Last modified July 2, 2015
1. Root Servers: Root servers are positioned at the top or root of the DNS hierarchy, and maintain data about each of the top-level zones. The root servers are maintained by the NIC and have been moved to a common domain for consistent naming purposes. The...
Information Centers / Oracle Hardware / Site Reference / Solaris Admin / Sticky posts / SUN Hardware
by Ramdev · Published September 1, 2015 · Last modified September 19, 2019
Read – Sun Hardware Diagnosis at OBP level Read – Oracle Hardware Models ( 3D View) Read – Working with Solaris Server Consoles using LOM/ ILOM/ ALOM/ ELOM/ RSC Read – ILOM ( Integrated Lights out Manager) Command Line Read– System Controller Hung Issues Read– 7...
Solaris Admin / Solaris Disk Management / Storage Migrations / Unix Experts / Unix Intermediate / VxVM Learning / VxVM Migrations
by Ramdev · Published November 26, 2021
During the past two to three years, many organisations started migrating their Server storage from Old legacy SAN devices ( e.g. EMC Clariion ) to new powerful SAN storage ( e.g. EMC Symetrix VMAX) because of the low performance and maintenance costs involved with legacy storage....
Blog for Unix Admin / Solaris Admin / Solaris Best Practices / Solaris How-to
by Ramdev · Published September 9, 2011 · Last modified July 2, 2015
In enterprise network environment, the life time of any server will be decided by the lifetime of the application that is running on top of Operating System. In case if the application was retired / decommissioned then that server can be utilized for the different applications....
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