fail2ban
Bans IP addresses that make too many authentication failures
Fail2ban scans log files like /var/log/messages and bans IP addresses that makes too many password failures. It updates firewall rules to reject the IP address, can send e-mails, or set host.deny entries. These rules can be defined by the user. Fail2Ban can read multiple log files such as sshd or Apache web server ones.
There is no official package available for openSUSE Leap 15.3Distributions
openSUSE Tumbleweed
openSUSE Leap 15.2
openSUSE Backports for SLE 15 SP2
openSUSE Backports for SLE 15 SP1
openSUSE Backports for SLE 12 SP5
openSUSE Backports for SLE 12 SP4
SUSE SLE-15-SP2
SUSE SLE-15-SP1
SUSE SLE-12-SP5
SUSE SLE-11 SP 4
Debian 9.0
RedHat RHEL-7
Ubuntu 16.04
Unsupported distributions
The following distributions are not officially supported. Use these packages at your own risk.