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sudo yum search php-

sudo yum module list php
sudo yum install yum-utils http://rpms.remirepo.net/enterprise/remi-release-8.rpm

sudo yum module list php
sudo yum module reset php
sudo yum module enable php:remi-7.4
## verify it php set to 7.4 ##
sudo yum module list php

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https://www.linuxbabe.com/mail-server/setup-basic-postfix-mail-sever-ubuntu

# Check host name

hostname -f

if host not contain in resutl

sudo hostnamectl set-hostname mail.demo.local

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sudo a2ensite example.com.conf
sudo a2dissite 000-default.conf

sudo a2dismod php5.6

sudo a2enmod php7.2

sudo update-alternatives --config php

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# Guide setup GlobalProtect Portal on Linux

## Setup GlobalProtect

Download GlobalProtect: https://itsforms.wsu.edu/VPN/clients/102419/GlobalProtect.zip
Go to folder Downloads and Unzip file

Install GlobalProtect

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# Guide setup GlobalProtect Portal on Linux

## Setup GlobalProtect

sudo apt update

Download GlobalProtect: https://github.com/jundat95/GlobalProtectVPN/raw/master/PanGPLinux-5.0.8-c6.tgz

Go to folder Downloads and Unzip: tar -xvzf PanGPLinux-5.0.8-c6.tgz

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# Guide setup postfix, mail relays on centos 7

## Install postfix

sudo yum install postfix
sudo vim /etc/postfix/main.cf

/*add to bottom*/

myhostname = relay.example.com

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sudo apt install python-software-properties
sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install php5.6-fpm php5.6-bcmath php5.6-dba php5.6-imap php5.6-mcrypt php5.6-pspell php5.6-sybase php5.6-bz2 php5.6-dev php5.6-interbase php5.6-mysql php5.6-readline php5.6-tidy php5.6-cgi php5.6-enchant php5.6-intl php5.6-odbc php5.6-recode php5.6-xml php5.6-cli php5.6-json php5.6-opcache php5.6-snmp php5.6-xmlrpc php5.6-common php5.6-gd php5.6-ldap php5.6-pgsql php5.6-soap php5.6-xsl php5.6-curl php5.6-gmp php5.6-mbstring php5.6-phpdbg php5.6-sqlite3 php5.6-zip

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# Server
yum -y install openssh-server

cd .ssh
ssh-keygen -t rsa 
mv ~/.ssh/id_rsa.pub ~/.ssh/authorized_keys 

vi /etc/ssh/sshd_config 

 # line 65: turn to [no]

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docker run -itd --privileged -p 22:22 -p 8081:8081 centos /usr/sbin/init

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# Check network

sudo tcptrack -i ens160
sudo iftop -n
sudo tcpdump

# Check port listen

sudo lsof -i -P -n | grep LISTEN
sudo netstat -tulpn | grep LISTEN