This is post is to explain the configuration of a linux VM with a secondary NIC without reboot or restart network services. This is fairly simple and straight forward task, but I am just posting it for the folks who are new for the Linux VM...
Linux Admin / Linux Networking / Redhat Enterprise Linux 6 / Unix Intermediate
by Ramdev · Published October 16, 2021
In Red Hat Enterprise Linux 3 or later FTP service is provided by the vsftpd daemon. vsftpd stands for “Very Secure FTP Daemon” and is an FTP server for Unix-like systems. It supports IPv6 and SSL, as well as explicit and implicit FTPS. The vsftpd daemon...
Linux Networking / Redhat Enterprise Linux 6 / RHEL LDAP / Unix Experts
by Ramdev · Published September 23, 2021
This is my fourth post in RHEL 6.3 LDAP implementation Series. And the purpose of this post is to give extra extra muscle to troubleshoot the issues that you encounter during or after the LDAP implementation. In this post i am documenting the troubleshooting tips...
EMail Posts / Linux Admin / Linux Networking / Redhat Enterprise Linux 6 / Unix Intermediate
by Ramdev · Published September 3, 2021
NTP stands for Network Time Protocol, and it is an Internet protocol used to synchronize the clocks of computers to some time reference. NTP is an Internet standard protocol originally developed by Professor David L. Mills at the University of Delaware. Time usually just advances. If you have communicating programs running on different computers, time still...
1. Network does not start due to “Device not managed by Network-Manager” error. Generally, this error occurs when the ethernet cable does not connect to the interface well and the interface is not configured properly. The solution for this issue is to ensure the link...
Linux Networking / Linux tutorials / Recent Posts / Redhat Enterprise Linux 6 / RHEL7
by Shujat Husain · Published June 5, 2017 · Last modified May 31, 2017
When using IP based hosting to create a website, we require multiple IPs to launch multiple websites on a single apache server. For every website, we will need an IP address assigned to a single NIC or we can use IP aliasing. IP aliasing refers to...
HP Hardware / Information Centers / Linux Admin / Linux Booting / Linux Disk Management / Linux LVM / Linux Networking / Linux Performance / Linux Troubleshooting / Linux YUM/RPM / Performance Analysis / Redhat Clusters / Redhat Enterprise Linux 6 / Redhat Linux Kernel / RHEL Commands / RHEL Configuration Files / RHEL LDAP / RHEL Migrations / Rhel6 Storage / RHEL7 / Site Reference / Sticky posts / Ubuntu
by Ramdev · Published September 1, 2015 · Last modified September 19, 2019
Booting Tasks Read – Unexpected Server Reboots of RHEL servers on HP Read – Linux Admin Reference – RedHat Linux Grub Loader Storage Responsibilities Read – Understand Device Mapper and DM-Multipath Read – Identifying Disk Errors in Linux Read – Identify if linux was installed on...
Linux Admin / Linux Networking / Redhat Enterprise Linux 6 / Unix Intermediate
by Ramdev · Published June 12, 2014 · Last modified July 2, 2015
A chroot on Unix operating systems is an operation that changes the apparent root directory for the current running process and its children. A program that is run in such a modified environment cannot name and cannot access files outside the designated directory tree. Chroot sftp...
Linux Admin / Linux Networking / Redhat Linux Kernel
by Ramdev · Published March 25, 2014 · Last modified July 2, 2015
This article will introduce several Tunable Parameters, that we can customize for Network Tuning purpose in Redhat Enterprise Linux.
Linux Admin / Linux Networking / Redhat Enterprise Linux 6
by Ramdev · Published March 20, 2014 · Last modified July 23, 2016
Multicast is method of sending IP packetes to a group of interested receivers. Compared with broadcast, the packets are only sent to the members of a multicast group with the help of multicast router.
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