Harden sshd_config
Harden sshd_config

The changes are better explained in the following article:

https://stribika.github.io/2015/01/04/secure-secure-shell.html

brunostein/pfsense,brunostein/pfsense,NewEraCracker/pfsense,ch1c4um/pfsense,phil-davis/pfsense,ptorsten/pfsense,NewEraCracker/pfsense,pfsense/pfsense,BlackstarGroup/pfsense,pfsense/pfsense,pfsense/pfsense,ch1c4um/pfsense,jxmx/pfsense,jxmx/pfsense,phil-davis/pfsense,NOYB/pfsense,ch1c4um/pfsense,BlackstarGroup/pfsense,brunostein/pfsense,NOYB/pfsense,ptorsten/pfsense,NewEraCracker/pfsense,BlackstarGroup/pfsense,dennypage/pfsense,ptorsten/pfsense,phil-davis/pfsense,NewEraCracker/pfsense,ch1c4um/pfsense,NOYB/pfsense,pfsense/pfsense,BlackstarGroup/pfsense,dennypage/pfsense,dennypage/pfsense,jxmx/pfsense,dennypage/pfsense,phil-davis/pfsense