Ubuntu server after minimalistic installation will not have ssh. While installing ssh, you should be aware you are allowing remote logins to your server. This could potentially by a risk if someone manages to brute-force your password. In this case there are a few things we can do to properly protect ourselves. Firstly, use complicated passwords – this I cannot help you with. Think of something. Other things, that we include in this manual are: sshd.conf – disable root logins, sshdfilter – anti-bruteforcing system, iptables – firewall.
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Feb 02
Feb 02
Linux is stable OS, which can provide quite a flexible routing and firewall setup. It is also a free alternative to Cisco. To pre-configure it though is quite a challange if you are doing it for the first time. This howto should help you get started:
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