Enterprise Operations and Maintenance-lvs+keepalived for High Availability (HA)

Articles Catalogue Concept and principle of keeping alived lvs+keepalived for high availability Preparation of experimental environment Main and standby server 1 (DS) Backup Server 4 (Standby DS) Real Server(server2,server3) Physical Machine Testing Concept and principle of keeping alived Se ...

Posted on Tue, 30 Jul 2019 02:39:15 -0700 by vumpler

RHCE - Analysis and Storage Logs

System Log Architecture systemd-journald and rsyslog are responsible for system messages in Linux 7. The system log message is forwarded to rsyslog by system d-jourmald, and rsyslog is processed to write the log file under / var/log. Overview of linux Log Files log file purpose var/log/messages Most system log records var/log/ ...

Posted on Sat, 08 Jun 2019 16:29:20 -0700 by imagineek

Liunx installs and configures multipath multipaths and configures permissions and rules for oracle asm disk groups

In the production environment, Oracle RAC needs the support of shared storage, and each LUN mounted on the shared storage is usually multi-path, so it needs to install multi-path software on the server to integrate multiple links of a LUN. Some storage vendors will have their own multi-path software, but some do not, which requ ...

Posted on Fri, 01 Feb 2019 17:33:15 -0800 by Wildhalf

Rhel 6.5 Error "INTERNAL APPLICATION ERROR" in Manis Times

Refer to the documents that were sorted out when mantis was successfully built before, and encounter a problem that was not encountered before when mantis was built on RHEL 6.5 again. After searching some documents on the internet, it still can not be solved. Therefore, I hope that the passers-by can help me to point out one or ...

Posted on Sat, 26 Jan 2019 11:18:13 -0800 by jeffjohnvol

Rhel6.5 compiles linux kernel 2.6.32-220.23.1.el6, configures LVS to support FulllNat mode

There are three commonly used modes of LVS. These three modes are provided by default on common Linux distributions, but there is also an open source mode, FullNat. Official documents indicate that it needs to be compiled in combination with kernel 2.6.32-220.23.1.el6. This article is mainly used to demonstrate the com ...

Posted on Mon, 07 Jan 2019 15:33:10 -0800 by chewydence

Installation of postgresql database + postgis+pgagent+pgadmin tool under CentOS 6.5 system

Installation of postgresql database + postgis+pgagent+pgadmin tool under CentOS 6.5 system This document mainly records the steps and precautions for installing postgresql data and other related tools under a new CentOS 6.5 system. The installation of other postgresql tools is similar. Check if there is a pg database source: Order: yum list ...

Posted on Wed, 02 Jan 2019 21:18:09 -0800 by volka

LVS Practice: LVS (DR) Realizes Load Balancing, lvs+ldirectord, lvs+keepalived, LVS Load Balancing Error-shooting

LVS Practice: LVS (DR) to achieve load balancing, lvs+ldirectord, lvs+keepalived, LVS load balancing and fault-shooting LVS Practice: LVS (DR) to achieve load balancing, lvs+ldirectord, lvs+keepalived, LVS load balancing and fault-shooting 1. Load balancing through lvs 1. Experimental environment 2. Install and configur ...

Posted on Sat, 22 Dec 2018 23:12:06 -0800 by brighton