setup and configure ssh jump server
What is an SSH Jump Server?
SSH Jump server, sometimes called SSH Jump host or SSH Bastion host or SSH gateway is an intermediate server running the sshd daemon where all users would have to login via ssh first to access the remote server or target servers behind the gateway. The ssh jump server can be on a public-facing network while the target servers or the destination servers can be on a private network behind a firewall for better security.
How to install, setup & configure Ezeelogin SSH Jump server on a Linux box?
We can guide you or install & configure Ezeelogin SSH Jump server software for you and give you a demo on how to use it at no extra charge. Contact our 24/6 Support Desk to schedule your free or guided installation. Also, schedule a free introductory session to get to know on how to use Ezeelogin Jump server solution effectively and ask your questions with our engineers.
If you are unsure of what your jump server IP is, simply log in to your ssh jump server and run the command
Downloads
| For PHP version 8.2 and above: | https://downloads.ezeelogin.com/ezlogin_7.37.2_php82.bin |
| For PHP version 8.1.x: | https://downloads.ezeelogin.com/ezlogin_7.37.2_php81.bin |
| For PHP version 7.x (end of life): | https://downloads.ezeelogin.com/ezlogin_7.36.0_php71.bin |
| For PHP version 5.6 to 7.0 (end of life): | https://downloads.ezeelogin.com/ezlogin_7.27.6_php56-70.bin |
| For PHP version 5.3 to 5.5 (end of life): | https://downloads.ezeelogin.com/ezlogin_7.10.0_php53-55.bin |
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NOTE: 7.36.0 is the last version that supports PHP versions 7.x, 7.27.6 is the last version that supports PHP versions from 5.6 to 7.0 and 7.10.0 is the last version that supports PHP versions from 5.3 to 5.5
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2. Install SSH jump server dependency packages
Refer to the system requirement below
7.27.0 is the last version of Ezeelogin that supports PHP versions from 5.6 to 7.0.
The firewall on the jump server should allow outbound connection to license.ezeelogin.com on port 443 to fetch the license and download the software from downloads.ezeelogin.com
telnet license2.ezeelogin.com 443
Connected to license2.ezeelogin.com.
Escape character is ’^]’.
telnet license.ezeelogin.com 443
Connected to license.ezeelogin.com.
Escape character is ’^]’.
telnet downloads.ezeelogin.com 80
Connected to downloads.ezeelogin.com.
Escape character is ’^]’ .
Ensure SELINUX is disabled on the jump server. The command #sestatus would show if it’s active or not. If it is not installed, then it's fine. Refer Disable Selinux to disable it.
sestatus
SELinux status: disabled
Ensure time on the jump server is accurate. Use the command #ntpdate pool.ntp.org to sync time.
ntpdate pool.ntp.org
26 Sep 16:32:03 ntpdate[15219]: adjust time server 133.243.238.244 offset -0.124881 sec
Ensure that Root SSH login on the jump server is enabled and SSH key-based authentication is enabled in SSHD. The below example enables root access only from the ip 127.0.0.1 and it allows only key-based authorization which makes it secure. Add the following parameters to the END of /etc/ssh/sshd_config file.
Edit the file using the nano or vi command
nano /etc/ssh/sshd_config
Add the following parameters to the "/etc/ssh/sshd_config" file.
#SSHD Global Settings
AllowTcpForwarding no
PubkeyAuthentication yes
#SSHD localhost settings.
Match Address 127.0.0.1
PermitRootLogin yes
PubkeyAuthentication yes
PasswordAuthentication yes
If you are planning to install the cluster (master-slave), add the below lines in /etc/ssh/sshd_config.
- Append the below lines in the master node.
Match Address slave_node_ip
PermitRootLogin yes
- Append the below lines in the slave node.
Match Address master_node_ip
PermitRootLogin yes
Check SSHD configuration and restart the sshd daemon
root@jump#~ sshd -T | grep -i 'AllowTcpForwarding\|PermitRootLogin\|PubkeyAuthentication\|PasswordAuthentication\|pubkeyacceptedalgorithms\|Port'
root@jump#~ service sshd restart
How to install SSH Jump server in Ubuntu 22?
Supported from Ezeelogin 7.29.5 version
Enter the following command on your terminal to install the Ezeelogin dependency package on Ubuntu 22
root@jumpserver:~# apt update ; apt-get install php mysql-server apache2 libapache2-mod-php8.1 php-mysql php-curl php-xml php-ldap nodejs npm git -y
Add the following to /etc/mysql/mysql.conf.d/mysqld.cnf configuration file under [mysqld] for MySQL 8.0 version and restart MySQL Server
default_authentication_plugin=mysql_native_password
service mysql restart
Refer below article to set the MySQL root password from MySQL.
Enable the RSA key type in pubkeyacceptedalgorithms. Open /etc/ssh/sshd_config and append the below line to enable ssh-rsa.
1. Checking database connectivity... when installing Ezeelogin.
For installing Ezeelogin, the MySQL root user should use the mysql_native_password plugin. Refer above step to add mysql_native_password in /etc/mysql/mysql.conf.d/mysqld.cnf
2. Error while adding user in Ezeelogin GUI "Error: User add failed. Failed to connect to database: Error: Plugin caching_sha2_password could not be loaded: Dynamic loading not supported. . An error occurred. Please contact administrator.. ]0;"
Refer article to change plugin to mysql_native_password for the Ezeelogin user.
How to install SSH jump server in Ubuntu 20?
Supported from Ezeelogin 7.22.0 version
Enter the following command on your terminal to install the Ezeelogin dependency package on Ubuntu 20
root@jumpserver:~# apt update ; apt-get install php mysql-server apache2 libapache2-mod-php7.4 php-mysql php-curl php-xml php-ldap nodejs npm git -y
Add the following to /etc/mysql/mysql.conf.d/mysqld.cnf configuration file under [mysqld] for MySQL 8.0 version and restart MySQL Server
default_authentication_plugin=mysql_native_password
service mysql restart
Refer below article to set the MySQL root password from MySQL.
Enable the RSA key type in pubkeyacceptedalgorithms. Open /etc/ssh/sshd_config and append the below line to enable ssh-rsa.
1. Checking database connectivity... when installing Ezeelogin.
For installing Ezeelogin, the MySQL root user should use the mysql_native_password plugin. Refer above step to add mysql_native_password in /etc/mysql/mysql.conf.d/mysqld.cnf
2. Error while adding user in Ezeelogin GUI "Error: User add failed. Failed to connect to database: Error: Plugin caching_sha2_password could not be loaded: Dynamic loading not supported. . An error occurred. Please contact administrator.. ]0;"
Refer article to change the plugin to mysql_native_password for the Ezeelogin user.
How to install SSH jump server in Ubuntu 18?
Enter the following command on your terminal to install the Ezeelogin ssh jump server dependency package on Ubuntu 18.
root@jumpserver:~# apt update ; apt-get install php mysql-server apache2 libapache2-mod-php7.2 php-mysql php-curl php7.2-xml php7.2-ldap nodejs git
If you want to install php-mcrypt ( For older ezeelogin versions [ Below 7.20.0 version ]
root@jumpserver:~# apt install php-dev libmcrypt-dev php-pear ; apt-get -y install gcc make autoconf libc-dev pkg-config
root@jumpserver:~# apt-get -y install php7.2-dev ; apt-get -y install libmcrypt-dev
root@jumpserver:~# sudo pecl install mcrypt-1.0.3
root@jumpserver:~# echo "extension=mcrypt.so" >> /etc/php/7.2/cli/php.ini
Refer detailed article to compile and install php-mcrypt.
Set the root password with the following command
root@jumpserver:~# mysql_secure_installation
How to install SSH Jump server in Ubuntu 16?
Enter the following command on your terminal to install the ssh jump server dependency package on Ubuntu 16.
root@jumpserver:~# apt update ; apt-get install php mysql-server apache2 php-mcrypt libapache2-mod-php7.0 php-mysql php-curl php7.0-xml php-ldap nodejs git
How to install SSH Jump server in Ubuntu 14?
We do not recommend using Ubuntu 14 as it is no longer supported by the vendor (canonical) with security patches, vulnerabilities, or bug fixes. Therefore, continuing to use Ubuntu 14 could pose a significant security risk.
You can follow the article to migrate to the latest version of Ubuntu box
How to install SSH Jump server in AlmaLinux 8.4 / Rocky Linux?
Supported from Ezeelogin 7.25.0 version
Enter the following command on your terminal to install the Ezeelogin dependency package on Almalinux 8 / Rocky Linux
root@jumpserver:~# yum -y install httpd openssl php php-mysqlnd php-process php-common php-cli php-json mariadb-server bzip2 mariadb mod_ssl php-ldap nodejs npm git
root@jumpserver:~# service mariadb start
Make sure that web server and SQL server startup on boot
root@jumpserver:~# systemctl enable mariadb
root@jumpserver:~# systemctl enable httpd
Set the root password with following command
root@jumpserver:~# mysql_secure_installation
How to install SSH Jump server in RHEL 8?
Supported from Ezeelogin 7.27.0 version
Enter the following command on your terminal to install the Ezeelogin dependency package on RHEL 8
root@jumpserver:~# dnf -y install httpd openssl php php-mysqlnd php-process php-common php-cli php-json mariadb-server bzip2 mariadb mod_ssl php-ldap nodejs npm git
root@jumpserver:~# service mariadb start
Make sure that the web server and SQL server startup on boot
root@jumpserver:~# systemctl enable mariadb
root@jumpserver:~# systemctl enable httpd
Set the root password with the following command
root@jumpserver:~# mysql_secure_installation
How to install SSH Jump server in Debian 12/11?
Enter the following command on your terminal to install the Ezeelogin dependency package on Debian 12/11
root@jumpserver:~# apt update ; apt upgrade -y ; apt install curl -y ; curl -sSL https://packages.sury.org/php/README.txt | sudo bash -x;apt install php8.1 libapache2-mod-php8.1 mariadb-client mariadb-server apache2 php8.1-mcrypt php8.1-mysql php8.1-curl php8.1-xml php8.1-ldap nodejs npm git -y
Set the root password with the following command
root@jumpserver:~# mysql_secure_installation
How to install SSH Jump server in Debian 10?
Enter the following command on your terminal to install the Ezeelogin dependency package on Debian 10
root@jumpserver:~# apt update; apt install php mariadb-client mariadb-server apache2 libapache2-mod-php php-mysql php-curl php-ldap nodejs git
Set the root password with the following command
root@jumpserver:~# mysql_secure_installation
How to install SSH Jump server in Debian 9?
Enter the following command on your terminal to install the Ezeelogin dependency package on Debian 9
root@jumpserver:~# apt update; apt install php mariadb-client mariadb-server apache2 php-mcrypt libapache2-mod-php7.0 php7.0-mysql php-curl php7.0-xml php7-ldap nodejs git
Set the root password with following command
root@jumpserver:~# mysql_secure_installation
How to install SSH Jump server in Centos 7?
Enter the following command on your terminal to install the Ezeelogin dependency package on Centos 7
root@jumpserver:~# yum -y install epel-release httpd openssl php php-mysql php-process php-common php-cli php-mcrypt mariadb-server bzip2 mariadb mod_ssl php-ldap nodejs git; yum -y install php-mcrypt
root@jumpserver:~# service mariadb start
Make sure that the web server and SQL server startup on boot
root@jumpserver:~# systemctl enable mariadb
root@jumpserver:~# systemctl enable httpd
Set the root password with the following command
root@jumpserver:~# mysql_secure_installation
How to install SSH Jump server in Centos 8?
Supported from Ezeelogin 7.22.0 version
Enter the following command on your terminal to install the Ezeelogin dependency package on Centos 8
root@jumpserver:~# yum -y install httpd openssl php php-mysqlnd php-process php-common php-cli php-json mariadb-server bzip2 mariadb mod_ssl php-ldap nodejs npm git
root@jumpserver:~# service mariadb start
Make sure that web server and SQL server startup on boot
root@jumpserver:~# systemctl enable mariadb
root@jumpserver:~# systemctl enable httpd
Set the root password with the following command
root@jumpserver:~# mysql_secure_installation
How to install and configure SSH Jump server in Centos 6?
We do not recommend using Centos 6 as it is no longer supported by the Linux community with security patches, vulnerabilities, or bug fixes. Therefore, continuing to use CentOS 6 could pose a significant security risk.
You can follow the article to migrate to a Centos 7 Machine
How to configure SSH Jump server in SUSE Linux 15?
Supported from Ezeelogin 7.24.1 version
Enter the following command on your terminal to install the Ezeelogin dependency package on SUSE Linux 15
root@jumpserver:~# zypper in apache2 openssl php php-mysql php-posix apache2-mod_php7 php-cli php-json php7-sodium mariadb-server bzip2 mariadb php-ldap nodejs npm git php-posix php7-curl
root@jumpserver:~# service mariadb start
Make sure that web server and SQL server startup on boot
root@jumpserver:~# systemctl enable mariadb
root@jumpserver:~# systemctl enable apache2
Set the root password with the following command
root@jumpserver:~# mysql_secure_installation
3. Download & install Ioncube Loader
Ezeelogin SSH jump server software is encrypted with ioncube loader.You need to download & install ioncube loader to decrypt before jump server installation. Refer the following article to download & install ioncube loader.
4. Download & Install Ezeelogin SSH jump server software
You may download the Ezeelogin jump server package corresponding to the PHP version installed on your server.
Make sure to download the binary package to /root
Execute the following command with the latest version available as the root user on your server.
root@jumpserver:~# wget https://downloads.ezeelogin.com/ezlogin_7.x.x.bin (Use the correct download link from the customer portal)
If you are planning to connect to remote MySQL/RDS servers, you should grant to access to the database on the remote database server. This is not required if your MySQL server is running on localhost. (Replace root with user admin user)
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'PASSWORD' WITH GRANT OPTION;
mysql> flush privileges;
(For AWS RDS MySQL 5.6,5.7 & MariaDB 10.2)
You can install and configure ssh jump server by simply executing the following installation script.
root@jumpserver:~# sh ezlogin_7.x.x.bin
Follow the prompts and the installation would complete without issues.
Note: you need to accept the license agreement by manually typing " I AGREE " or running the following command to auto accept the license.
sh ezlogin_7.x.x.bin -- -I_ACCEPT_EULA
Type "I AGREE" and press enter to accept the license:
You may be prompted to enter the missing settings. The default value will be given in bold. Simply pressing the enter key will choose the default value.
Enter the path where web panel files should be installed.
This path should be accessible via a web browser.
The directory should not exist, but its parent directory should exist.
path to install web panel files ( /var/www/html/ezlogin ):
You need to specify the Document root here ,if it is different from default else you press enter to choose default.
Enter the path where web panel system files should be installed.
This should be preferably outside the DocumentRoot (should not be accessible via web browser) for security reasons.
If safe_mode restriction is enabled, this path should be allowed for include with safe_mode_include_dir
The directory should not exist, but its parent directory should exist.
path to install web panel system files ( /var/www/ezlogin ):
If you need to access the Ezeelogin jump server webpanel as www.yourdomain.com choose " / " & change your document root to {your existing document root}/ezlogin. For example ,If your document root is /var/ww/html change to /var/ww/html/ ezlogin , else press enter to choose default
For example, if the DocumentRoot of http://www.yourdomain.com/ is /usr/local/apache/htdocs/yourdomain and you specified /usr/local/apache/htdocs/yourdomain/ezlogin as path to install web panel, the web panel would be accessible as http://www.yourdomain.com/ezlogin/. In this case the REQUEST-URI would be ’/ezlogin/’.
If you specified DocumentRoot itself as the path to install web panel files, it would be ’/’
URI path to access the web panel ( /ezlogin/ ):
Enter the hostname/ip address of the remote database server or use localhost, if you are going to run the database server on the current server.
If the MySQL server is running on this system itself, use ’localhost’
MySQL server ( localhost ):
port or path to unix socket used by the MySQL server.
MySQL port/socket ( 3306 ):
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'PASSWORD' WITH GRANT OPTION;
mysql> flush privileges;
Enter the username with super user (root) privileges for the database server.
This is usually ’root’, sometimes ’admin’ etc.
MySQL super user ( root ):
Please enter the password for the database super user.
MySQL super user password:
Do NOT enable this if you are not sure. You can always manually enable it after installation as well. This is useful only if you will be setting up master/slave node for redundancy.
Enable this option to use MySQL SSL connectivity when using a cluster so that mysql communication between the primary and secondary gateways would be encrypted
Do you want to use secure MySQL connection (yes/no) ? ( no ):
Refer the below articles to configure MySQL SSL configuration
If you are using SSL for AWS RDS, you can specify "mysql_ssl_ca /var/lib/mysql/rds-combined-ca-bundle.pem" in /usr/local/etc/ezlogin/ez.conf
Enter the ezlogin Administrator username (less than 21 chars).
This user should not exist on this system. It will be created.
admin user ( ezadm118 ):
Enter the password for ezlogin Administrator.
admin password ( }AkJy.%R3TQaX(P ):
Enter the security code for ezlogin Administrator.
security code ( FIyW6x7Lbz ):
Whether web panel should force HTTPS (secure) protocol or not. [yes/no]
Force HTTPS for web panel? ( no ):
Review settings:
Install web panel files in : /var/www/html/ezlogin/
Install web panel system files in : /var/www/ezlogin/
URI path to access web panel : /ezlogin/
MySQL server : localhost
MySQL port/socket : 3306
MySQL database : ezlogin_jzgzs
MySQL user : ezlogin_xnyqwd
MySQL password : !T3}3w$czV$6VrWxG)kn{5&3t5
Force HTTPS for web panel? : no
Secure MySQL connection? : no
Admin user : admin
Admin password : admin
Admin security code : admin
Note these down for future reference. Certain values such as passwords cannot be retrieved after setup.
Accept the above settings? (y/n/x) :
Creating and setting up database... done
Adding ezsh to shells... done
Creating group and users... done
Creating directories... done
Copying files... done
Setting access... done
Setting file modes... done
Setting file owners... done
Setting file groups... done
Setting up config... done
Setting up cron... done
Downloading GeoLiteCity database from www.maxmind.com... done
########################################################
Ezeelogin installed. (Log: /var/log/ezlogin_install.log )
########################################################
###################################################################
Web panel installed at:
’ /var/www/html/ezlogin/ ’
( http://yourdomain.com/ezlogin/ ).
###################################################################
Note: Please check the log file to see if any error occurred.
TODO NOTES:
Enable web server, MySQL server and cron to startup at boot time.
For free assistance, please contact [email protected]
Thank you for choosing Ezeelogin.
Refer the following article to configure secure web panel (https)
To install in one step with the default settings and without being prompted. Be ready with MySQL root password if not in /root/.my.cnf
[root@gateway~]# sh ezlogin_7.21.0._x_x.bin -- -skipgeolite -auto -force -ACCEPT_SETTINGS -I_ACCEPT_EULA
If SSH Daemon on ssh jump host is running on a non standard port other than 22, do update Gateway SSH Port in the Webgui.
You can refer the article to install secondary node on Ezeelogin.
We can guide you, install it for you and give you a demo on how to use it at no extra charge. Contact our 24/6 Support Desk to schedule your free or guided installation. Also, schedule a free introductory session to get to know how to use the Ezeelogin Jump server solution effectively and ask your questions with our engineers.
