zabbix-sftp

SFTP monitoring with python sftp in zabbix.

Metrics

• Response Code: 0=OK, 1=Failed
• Response Time (second)

Prerequisites

• python
• cryptography
• pysftp
• zabbix user ssh key
• jq
• zabbix sender

Installation

Install cryptography and pysftp modules in python on zabbix server or zabbix proxy, below are the installation commands on ubuntu:

• apt-get install python-pip
• pip install --upgrade pip
• apt-get install build-essential libssl-dev libffi-dev python-dev
• pip install cryptography
• pip install pysftp

Generate zabbix user ssh key on zabbix server or zabbix proxy, ssh key password is required.

# chmod g+w <zabbix_user_homepath>
# mkdir <zabbix_user_homepath>/.ssh
# chown zabbix. <zabbix_user_homepath>/.ssh
# sudo -u zabbix ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (<zabbix_user_homepath>/.ssh/id_rsa): 
Created directory '<zabbix_user_homepath>/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in <zabbix_user_homepath>/.ssh/id_rsa.
Your public key has been saved in <zabbix_user_homepath>/.ssh/id_rsa.pub.

Add zabbix user ssh public key to the remote sftp user home authorized keys.

<sftp_user_homepath>/.ssh/authorized_keys

Upload an empty file called "test" in the sftp user home directory.

Copy the scripts to zabbix server external scripts directory, normally /usr/lib/zabbix/externalscripts.

• /usr/lib/zabbix/externalscripts# chmod +x sftpCheck.py
• /usr/lib/zabbix/externalscripts# chmod +x sftpCheck.sh

Import the sftp check template and create a new host in zabbix, link the template to the new host, set the value of the following macros on the template,

• {$SFTP_KEY_FILE} - <zabbix_user_homepath>/.ssh/id_rsa
• {$SFTP_KEY_PASS} - password of zabbix user private key

and add the value of sftp server hostname and login user macros on the new host.

• {$SFTP_HOST} - sftp server hostname
• {$SFTP_USER} - sftp login user