install high avability

sumber = https://www.tecmint.com/cman-multi-node-cluster-setup-in-linux/
http://www.computerglitch.net/bin/texts/CentOSCluster.php

zabbix checknow log

log checknow monitor

zabbix error

I often compile Zabbix from sources for work and for testing purposes.
In my opinion this is the best way of installation, because you can configure and install Zabbix Server or Proxy only with features that you exactly need and without relying on package options.
For each configuration, additional libraries will be needed, otherwise you’ll receive a dependency error.

lvm -troubleshoot

# pvdisplay
Couldn't find device with uuid EvbqlT-AUsZ-MfKi-ZSOz-Lh6L-Y3xC-KiLcYx.
  --- Physical volume ---
  PV Name               /dev/sdb1
  VG Name               vg_srvlinux
  PV Size               931.51 GiB / not usable 4.00 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              238466
  Free PE               0
  Allocated PE          238466
  PV UUID               xhwmxE-27ue-dHYC-xAk8-Xh37-ov3t-frl20d

nfs hang nas

https://www.dbappweb.com/2018/03/08/nfs-mount-points-unreachable-df-hangs/

install pdooci di linux centos

cara install pdo_oci di centos 7 dan php7

1. selinux di disable terlebih dahulu
2. refernsi
https://www.oracle.com/technetwork/articles/dsl/php-oic-install-linux-2275399.html
https://github.com/NatLibFi/NDL-VuFind2/wiki/Oracle-with-PHP-5.6-or-PHP-7-on-RHEL-6-or-CentOS-7

how install oracle

Install Oracle 11G Release 2 (11.2) on Centos Linux 7

Posted on July 13, 2014

This article presents how to install Oracle 11G on Centos Linux 7.

Read following article how to install Centos Linux 7: Install Centos Linux 7 (for comfort set 2G memory for your virtual machine before proceeding with Oracle software installation).

Installation software is available on OTN, edelivery version 11.2.0.1 or Oracle support(old metalink) 11.2.0.4. In this installation I’m presenting installation for 11.2.0.4 but for previous version 11.2.0.X it shouldn’t be different.

• Oracle support
• OTN: Oracle Database 11G Release 2 Software (64-bit).
• edelivery: Oracle Database 11G Release 2 Software (64-bit)

Create SSL haproxy

openssl genrsa -out eproc.iconpln.co.id.key 2048
openssl req -new -x509 -key eproc.iconpln.co.id.key -out eproc.iconpln.co.id.cert -days 36500
openssl req -new -key eproc.iconpln.co.id.key -out eproc.iconpln.co.id.csr

ubuntu 17 tdak bsa paket

http://wimantis.ninja/fixing-ubuntu-17-04-apt-get-update-release-file-not-found/


The solution is pretty simple, just replace us.archive.ubuntu.com and security.ubuntu.com in /etc/apt/sources.list with old-releases.ubuntu.com and then you'll be able to finish updating.