Category Redhat

Howto upgrade Oracle Linux from 5.9 to 5.11

Howto upgrade Oracle Linux from 5.9 to 5.11

Step 1: Check Present Status of Kernel and Red-hat release

[root@localhost yum.repos.d]# cat /etc/redhat-release

Red Hat Enterprise Linux Server release 5.9 (Tikanga)

[root@localhost yum.repos.d]# uname -a

Linux localhost.localdomain 2.6.39-300.26.1.el5uek #1 SMP Thu Jan 3 18:31:38 PST 2013 x86_64 x86_64 x86_64 GNU/Linux

Step 2: Create repository for update in /etc/yum.repos.d

[root@localhost yum.repos.d]# nano ol5.repo

[el5_latest_local]

name=Oracle Linux $releasever Latest ($basearch)

#baseurl=http://<hostname removed>/repo/OracleLinux/OL5/latest/$basearch/

baseurl=http://public-yum.oracle.com/repo/OracleLinux/OL5/latest/$basearch/

gpgcheck=0

enabled=1

[ol5_UEK_latest_local]

name=Latest Unbreakable Enterprise Kernel for Oracle Linux $re...

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Howto change date, time and timezone on CentOS 7 Redhat RHEL

Howto change date, time and timezone on CentOS 7 Redhat RHEL

CentOS

By default, your CentOS or Redhat Server maybe don’t have correct time or timezone. So we have to do the configuration for that.

Ste...

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Howto install epel repository on Amazon EC2 instance

Howto install epel repository on Amazon EC2 instance

EC2 Ubuntu 10

On Amazon EC2 , you can install epel on Amazon EC2 which running Centos, Redhat or Amazon Linux.

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Howto fix security vulnerability CVE-2015-7547 on Redhat RHEL

Howto fix security vulnerability CVE-2015-7547 on Redhat RHEL

redhat

Step 1: Create a sh file script to check security on your Redhat Server

vi g...

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Howto download git URL by git command

Howto download git URL by git command

git

We can use git to download or mirror source code or package from Internet.

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Howto install kamailio on Centos 7 and RHEL

Howto install kamailio on Centos 7 and RHEL

Kamailio 3

Kamailio is the best of SIP Router platform. This topic will help you to install this.

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Howto listen ftp traffic by tcpdump

Howto listen ftp traffic by tcpdump

tcpdump

To listen or sniffer ftp traffic port 21,  you can run tcpdump on your ftp server.

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Howto sniffer ssh traffic by tcpdump

Howto sniffer ssh traffic by tcpdump

tcpdump

To listen and sniffer ssh traffic to your Centos server, you can use tcpdump to listen that.

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Howto sniffer Web traffic by tcpdump

Howto sniffer Web traffic by tcpdump

tcpdump

To troubleshooting web traffic or listen web service on your web server. You can use Tcpdump to listen that.

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Howto install apache httpd on Centos 7 and RHEL

Howto install apache httpd on Centos 7 and RHEL

CentOS

Apache is most popular web service application on Centos/RHEL. This topic will give you how to install apache on Centos 7 and RHEL

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