Linux

Script to install RabbitMQ 3.7.9 on Centos7

January 24, 2020 Jordansphere Linux

Script to install RabbitMQ 3.7.9 on CentOS 7   #!/bin/bash # README # ONLY VARIABLE REQUIRED IS admin password for "rabbitmqctl add_user admin {MyPassword}" # PLease change before running script. # echo "#######################################################################"; echo "This script will install RabbitMQ 3.7.9 and open relevant firewall rules"; echo "#######################################################################"; yum -y install epel-release wget http://packages.erlang-solutions.com/erlang-solutions-1.0-1.noarch.rpm rpm -Uvh […]

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Create LACP Bond Interface in Centos 7

December 2, 2019 Jordansphere Linux

Issue I had two 10Gb ports I wanted to bond in Dynamic Link Aggegration (802.3ad) To get the network interface list use: nmcli connection In my output I wanted to use ens1f0 and ens1f1 interfaces   Steps 1)  Create Bond Interface (bond0) nmcli con add type bond con-name bond0 ifname bond0 mode 4 ip4 10.32.99.12/24 10.32.99.254 […]

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Init: Private key not found – Apache Wont Start on CentOS

October 29, 2019 Jordansphere Apache

Problem When attempting to update a certificate in Apache the webserver would not restart. Apache Error Logs: [Tue Oct 29 14:42:07 2019] [error] Init: Private key not found [Tue Oct 29 14:42:07 2019] [error] SSL Library Error: 218529960 error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag [Tue Oct 29 14:42:07 2019] [error] SSL Library Error: 218640442 error:0D08303A:asn1 encoding routines:ASN1_TEMPLATE_NOEXP_D2I:nested asn1 […]

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apache, centos, Init: Private key not found,

Script to Copy Yesterdays DB Backup to Remote Site

October 9, 2019 Jordansphere Linux

The following script will pick out yesterdays backup file and copy it over to a remote site using SCP Note: The format of the backup files are in this format : db-08-10-2019.bak.gz Note: You will need to install sshpass (eg yum -y install sshpass) and be comfortable with your password being in cleartext. #!/usr/bin/bash # […]

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¬†User “postgres” Has No Password Assigned

September 25, 2019 Jordansphere Linux

Problem When trying to remotely connect to Postgres 10.10 install for the first time I got and authentication error via pgadmin From the log files (/var/lib/pgsql/10/data/log/postgresql-Wed.log) 2019-09-25 14:05:38.970 BST [22665] FATAL:  password authentication failed for user "postgres" 2019-09-25 14:05:38.970 BST [22665] DETAIL:  User "postgres" has no password assigned.         Connection matched pg_hba.conf […]

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Script to Customize CentOS 7 Install in a VMware Environment

September 16, 2019 Jordansphere Linux

#!/bin/bash echo "#######################################################################"; echo "This script will Update the OS, install useful tools and configure NTP"; echo "#######################################################################"; #Update OS yum update -y #install useful tools yum install telnet -y yum install bind-utils -y # install vmware tools yum install -y open-vm-tools systemctl enable vmtoolsd.service systemctl status vmtoolsd.service # Disable selinux /usr/bin/sed -i 's/^SELINUX=.*/SELINUX=disabled/g' /etc/selinux/config […]

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Route Commands on ESXi, VCSA, Linux & Windows

August 28, 2019 Jordansphere Linux

Sample route commands    Windows Show routing table route print Add a persistent route ROUTE -p ADD 10.10.129.0 MASK 255.255.255.0 10.5.72.254   ESXi Show routing table esxcfg-route -l  Show routing table for specific stack esxcfg-route -l -N (stack name) Add route esxcli network ip route ipv4 add –gateway 10.5.72.254 –network 10.10.129.0/24   VCSA Show routing […]

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routing table ESxi, routing table Linux, routing table VCSA, routing table Windows, static route Centos,

Upgrade Zabbix from 3.4 to 4.0 with Pacemaker/Corosync

February 6, 2019 Jordansphere Linux

Here are the instructions for upgrading Zabbix from 3.4 to 4.0 in a HA setup in a  Pacemaker and Corosync environment. In this particular setup there are 6 servers – depicted below Two web front ends Two Zabbix Servers Two DB servers   Steps Pre-requisite: As this was running in a VMware environment I snapshotted each […]

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3.4 to 4.0, corosync, pacemaker, Upgrade Zabbix,

UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY

December 6, 2018 Jordansphere Linux

Problem A CentOS VM was rebooted but failed to start with the following error: /dev/ampper/VolGroup-lv_root: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY Solution 1)  Enter CLI {Enter root password} 2) Run filesystem check . In my case. # fsck -y /dev/ampper/VolGroup-lv_root 3 Reboot system # reboot  

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Backup Postgres DB and Rotate using Logrotate – CentOS

November 5, 2018 Jordansphere Linux

Here is a rudimentary script to backup a specific Postgres DB. Logrotate then takes care of the log rotation. As you'll see below we will keep 7 days worth of compressed files.   #! /bin/bash # This script is called from logrotate /etc/logrotate.d/my-dumps # It backs up myDB every evening and logrotate takes care of compression […]

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automatically backup postrgres database,

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