Parallel shell – Run commands on multiple Linux servers or Cloud instances simultaneously If you are in charge of large server farms, cluster of Linux nodes for high performance computing, or cryptocurrency mining farms then parallel shellย would easily let you manage multiple Linux servers or Cloud instances easily and quickly. Parallel shell is built into
SSH BRUTEFORCE ATTACK: How to defend against it effectively? Hackers frequently target Linux servers and try to bruteforce the ssh daemon running on it. If the root password that you have set is weak , the hackers would quickly gain access to your Linux server and your machines could be part of wider bot network,
Enable a firewall and by default block all IP access to the SSH Port and enable only your staff ips or dynamic ip ranges that you trust. Disable direct root login. Its always better to login as a non privileged user first and the switch to the root user. This is the norm if you
