On Fri, Sep 21, 2018 at 08:34:50AM +0530, Subhadip Ghosh wrote: > Hi, > > I am using Debian and the recently I learned that a standard Debian > installation allows all 3 types of traffics especially incoming by default. > I know I can easily use iptables to tighten the rules but I wanted to know > the reasons behind the choice of this default behaviour and if it makes the > system more vulnerable? I tried searching on the Internet but did not get > any satisfactory explanation. It will be helpful if anybody knows the > answers to my questions or can redirect me to a helpful document. >
The answer is easy. Because Debian is awesome (TM). So are most other distributions. Run a netstat -t -l and you will see there is nothing listening. So what is the point of running a firewall? By default no services (ipp might be the one exception) are running and listening. So that's your security, just don't run what you don't need. -H -- Henning Follmann | hfollm...@itcfollmann.com