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The main reason for this script is to block all ssh logins excpet from some countries. In this script I am allowing only US and INDIA for SSH Logins.
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You need to install geoip-bin & geoip-database.
$ sudo apt-get install geoip-bin geoip-database
- Make sure it works by doing
$ sudo geoiplookup 8.8.8.8
- Copy this script to your /usr/local/bin/
- Then use your /etc/hosts.deny and /etc/hosts.allow to control your SSHD.
- In /etc/hosts.deny add the below line
sshd: ALL
- In /etc/hosts.allow add the below line
sshd: ALL: aclexec /usr/local/bin/sshban.sh %a
- For testing the scipt, Run the below command
/usr/local/bin/sshban.sh 202.176.195.17
- Here if the IP is from US and INDIA, it will allow ssh connection, if its from any other country, it won't and you can see the logs on /var/log/messages or /var/log/syslog like below
Apr 05 11:59:54 pi logger: DENY sshd connection from 202.176.195.17 (SG)
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