Category: Linux

Install ionCube on Ubuntu 18.04

Download ioncube loader from

https://www.ioncube.com/loaders.php

cd /usr/local/src
wget https://downloads.ioncube.com/loader_downloads/ioncube_loaders_lin_x86-64.tar.gz
tar xvf ioncube_loaders_lin_x86-64.tar.gz
cd ioncube/

Find extension diretcory and copy .so file to php extension diretcory. To find php extension directory run

php -i | grep  extension_dir

For PHP 7.2, run

cp /usr/local/src/ioncube/ioncube_loader_lin_7.2.so /usr/lib/php/20170718

Enable ioncube

echo "zend_extension=ioncube_loader_lin_7.2.so" > /etc/php/7.2/mods-available/ioncube.ini
ln -s /etc/php/7.2/mods-available/ioncube.ini /etc/php/7.2/cli/conf.d/01-ioncube.ini

for Apache, run

ln -s /etc/php/7.2/mods-available/ioncube.ini /etc/php/7.2/apache2/conf.d/01-ioncube.ini
systemctl restart apache2

for php-fpm, run

ln -s /etc/php/7.2/mods-available/ioncube.ini /etc/php/7.2/fpm/conf.d/01-ioncube.ini
systemctl restart php7.2-fpm

October 18, 2018

Install ioncube on CentOS Plesk Server

To install ioncube on Plesk server, run

yum install plesk-php56-ioncube-loader plesk-php70-ioncube-loader plesk-php71-ioncube-loader plesk-php72-ioncube-loader

To verify ioncube installed, create a PHP file with following content

Upload it to server and access the file via web browser. You will see phpinfo. This will show ioncube if installed properly.

October 16, 2018

Install OpenLiteSpeed on Ubuntu/Debian

OpenLiteSpeed ia an Open Source version of LiteSpeed Web Server.

To install OpenLiteSpeed, add repository by running

wget -O - http://rpms.litespeedtech.com/debian/enable_lst_debain_repo.sh | bash

Now you have openlitespeed packages available on your server. Here is packages available on a Debian 9 server.

To install OpenLiteSpeed, run

apt install -y openlitespeed

OpenLiteSpeed will be installed in folder

/usr/local/lsws

You can start/stop OpenLiteSpeed using command

root@ok:~# /usr/local/lsws/bin/lswsctrl
$Usage: /usr/local/lsws/bin/lswsctrl {start|stop|restart|reload|condrestrt|try-restart|status|help}

start       - start web server
stop        - stop web server
restart     - gracefully restart web server with zero down time
reload      - same as restart
condrestart - gracefully restart web server if server is running
try-restart - same as condrestart
status      - show service status
help        - this screen

root@ok:~#

Once installed, you will be able to login to WebAdmin at

https://YOUR_SERVER_IP_ADDR:7080
User = admin
Pass = 123456

You can change default admin passord by going to

Admin > WebAdmin Settings > General > Users

Click on edit icon right side of user “admin”.

You can also change OpenLiteSpeed Admin password by running following command as user root

/usr/local/lsws/admin/misc/admpass.sh

October 15, 2018

Install CyberPanel on CentOS 7
CyberPanel is a hosting control panel. CyberPanel uses OpenLiteSpeed, an open-source version of LiteSpeed Web server.

CyberPanel with OpenLitespeed is Free to use.

To install CyberPanel, run
```
yum install -y wget
wget https://cyberpanel.net/install.sh
bash install.sh
```
It asks you the number of MySQL instances. I selected option 1

On next screen, it ask you to select MariaDB version. MariaDB is a MySQL drop in replacement, it work exactly like MySQL. Once install completed, installer displays login user name and password.

You wil be able to login to CyberPanel at
```
https://SERVER_IP:8090
Panel username: admin
Panel password: 1234567
```
See LiteSpeed
October 15, 2018
Find all devices in your LAN using nmap
Find all live hosts on your network
Find all open ports using nmap
How to find Operating System of a remote computer using nmap?

Find all devices connected to your LAN network.
```
nmap -sn 192.168.1.0/24
```
Replace 192.168.1.0/24 with whatever subnet you use.

nmap -p 80 IP_ADDR Scan specific port

nmap -p 100-1000 IP_ADDR Scan range of ports

nmap -F IP_ADDR Scan most used 100 ports

nmap -p- IP_ADDR Scan all ports

Disable TLSv1 in Nginx
October 15, 2018
CyberPanel
Reset Password
- How to reset CyberPanel MySQL root Password
- How to reset CyberPanel admin password
To list websites, run
```
cyberpanel listWebsitesPretty
```
Backup a website
```
cyberpanel createBackup --domainName your-domain.com
```
Backup will be stoed in folder /home/domain.tld/backup

To restore a backup, run
```
cd /home/domain.tld/backup
cyberpanel restoreBackup --fileName backup-domain.tld-12.18.2024_20-25-21.tar.gz
```
MySQL root password
```
cat /etc/cyberpanel/mysqlPassword
```
Urls
```
CyberPanel: https://hostname:8090
Webmail: 
https://hostname:8090/rainloop/
https://hostname:8090/snappymail/
```
See Hosting Control Panel
October 15, 2018
How to Change User Password in CyberPanel
Login to CyberPanel at
```
https://YOUR_SERVER_IP_ADDR:8090
```
Once logged in you will see

Click on the drop-down icon. Click on the “Edit Profile” Link.

The next page will have a drop-down box, where you can select the user you need to change password for.

You can enter your new password on this page and click “Modify User” button to update user password.

See CyberPanel
October 15, 2018
Secure Memcached on CentOS/RHEL 7
By default memcached on CentOS 7 is set to run on all IP address on the server. This allow attackers to abuse the service.

To set memcached to only listen to localhost (127.0.0.1), edit file
```
vi /etc/sysconfig/memcached
```
Find
```
OPTIONS=""
```
Replace with
```
OPTIONS="-l 127.0.0.1"
```
See memcached
October 13, 2018

Install Node.js on Ubuntu/Debian

To install Node.js on Ubuntu, first set up repository as per your version requirements.

For NodeJs v22.x

curl -sL https://deb.nodesource.com/setup_22.x | bash -

For NodeJs v21.x

curl -sL https://deb.nodesource.com/setup_21.x | bash -

For NodeJs v20.x

curl -sL https://deb.nodesource.com/setup_20.x | bash -

For NodeJs v18.x

curl -sL https://deb.nodesource.com/setup_18.x | bash -

For NodeJs v17.x

curl -sL https://deb.nodesource.com/setup_17.x | bash -

For NodeJs v16.x

curl -sL https://deb.nodesource.com/setup_16.x | bash -

For NodeJs v15.x

curl -sL https://deb.nodesource.com/setup_15.x | bash -

For NodeJs v14.x

curl -sL https://deb.nodesource.com/setup_14.x | bash -

For NodeJs v12.x

curl -sL https://deb.nodesource.com/setup_12.x | bash -

For NodeJs v11.x

curl -sL https://deb.nodesource.com/setup_11.x | bash -

Node.js v10.x

curl -sL https://deb.nodesource.com/setup_10.x | bash -

Node.js v9.x

curl -sL https://deb.nodesource.com/setup_9.x | bash -

Node.js v8.x

curl -sL https://deb.nodesource.com/setup_8.x | bash -

Node.js v6.x

curl -sL https://deb.nodesource.com/setup_6.x | bash -

Now install node.js with

apt-get install -y nodejs

Install build-essential package

apt install -y build-essential

See Node.Js

October 12, 2018

RPM Package Manager
On RHEL, CentOS, Fedora, etc use RPM for package management. To find the package that provides a binary file, run
```
rpm -qf /usr/sbin/sendmail
```
To see the change log for an rpm package, run
```
rpm -q --changelog PKG_NAME
```
Example
```
rpm -q --changelog bind | grep CVE
```
To find which RPM package owns a file
```
root@server2 [~]# rpm -qf /lib64/libkeyutils-1.2.so
keyutils-libs-1.2-1.el5
root@server2 [~]#
```
To see scripts used by a package
```
rpm -q --scripts httpd
```
See yum
October 12, 2018
Block an IP using iptables
To block an IP using iptables, use
```
iptables -A INPUT -s IPADDR -j DROP
```
Replace IPADDR with IP address you need to block.

To block an IP range
```
iptables -A INPUT -s IP_IN_CIDR_FORMAT -j DROP
```
Example, bock IP range 159.138.0.0/16
```
iptables -A INPUT -s 159.138.0.0/16 -j DROP
```
Unblock an IP address

To unblock an IP address, first find the rule number, you can do it with the command
```
iptables --list  INPUT -n --line-number | grep IP_ADDR_HERE
```
Once you find the number of rule to be removed, you can run
```
iptables --delete INPUT RULE_NUMBER_HERE
```
Example

See iptables
October 4, 2018
Encrypt a file using gpg
To encrypt a file using gpg command, run
```
gpg -o myfile.tar.gpg --symmetric myfile.tar
```
Now it will ask for a password. Once you enter password 2 times, file will be encrypted.

Decrypt

To decrypt a file, run
```
gpg myfile.tar.gpg
```
It will ask for the password, once you enter password, get file decrypted.

Example

This encryption process will also compress the file.
```
-rw-r--r--   1 root root 1559767040 Oct  1 08:35 home-boby.tar
-rw-r--r--   1 root root  666947870 Oct  1 08:24 home-boby.tar.gpg
```
In above example, 1.5 GB tar file get compressed into 600 MB file when encrypted with gpg
October 1, 2018

nmap -p 80 IP_ADDR	Scan specific port
nmap -p 100-1000 IP_ADDR	Scan range of ports
nmap -F IP_ADDR	Scan most used 100 ports
nmap -p- IP_ADDR	Scan all ports

Category: Linux

Reset Password

Unblock an IP address