kangmasjuqi

#assuming we have already on mongo terminal 

// this will resulting no row
> db.users.find({'email':'[email protected]'}).pretty()

// copying Greg's data and store it into temp variable 'marjuqi'
> marjuqi = db.users.findOne({'email':'[email protected]'})

// generate new unique ID for 'marjuqi' data
> marjuqi._id = new ObjectId()

kangmasjuqi

# GRAB/EXPORT DATABASE

mongodump -d <database_name> -o <directory_backup>

# RESTORE/IMPORT
mongorestore -d <database_name> <directory_backup>

STEPS :

assuming we have already log into the server.

kangmasjuqi

# lets assume that we have something like below structure of /usr/bin folder
# on our Centos 7
# 
# this indicate that we've installed 2 version of php : 5.6 and 7.2
# 
# here is the example source that shows us how to install multiple php version on Centos 7: 
#   https://cloudwafer.com/blog/installing-multiple-versions-of-php-on-centos/
#
#

kangmasjuqi

https://httpd.apache.org/docs/2.4/vhosts/examples.html

https://www.digitalocean.com/community/tutorials/how-to-set-up-apache-virtual-hosts-on-centos-7

https://www.rootusers.com/how-to-configure-an-apache-virtual-host/

kangmasjuqi

#!/bin/bash

# created by marjuqi, sept 2018

red=$'\e[1;31m'
green=$'\e[1;32m'
yellow=$'\e[1;33m'
blue=$'\e[1;34m'
endcolor=$'\e[0m'

kangmasjuqi

DevOps-Troubleshooting CHECK-list

	check log files (if any)

	check file accessability
		file existence (name and path)
		file ownership
		file permission

	check credentials

kangmasjuqi

how to find list of git commits that affecting/changed specific file


# show list commit with diff/changes detail
	
	git log -p -- __PATH_TO_FILE__


# show list commit without diff/changes detail

kangmasjuqi

^(ht{2}ps?:\/\/|w{3}\.)(w{3})?([a-z0-9\-]+\.?)+(\/[a-zA-Z0-9\-\.=?&^%#@_]+)*\/?$


=====================================
example of matched/valid URL :
=====================================

http://yourdomain.com

kangmasjuqi

# this commands will Find 10 Larget Files under 'your_target_directory'


find 'your_target_directory' -printf '%s %p\n'| sort -nr | head -10

# example :

find /var/logs/ -printf '%s %p\n'| sort -nr | head -10

kangmasjuqi

# sometime we need to know when exactly a command executed
# on a linux-based computer
# so we need to adjust bashrc file :
# 

echo 'export HISTTIMEFORMAT="%d/%m/%y %T "' >> ~/.bashrc
source ~/.bashrc

# output example of `history` command BEFORE bashrc adjusment 
  888  sudo monit -t