5. Enable your firewall. It might come as a surprise to you but some Linux distributions ship without the firewall enabled. For example, many distributions based on Ubuntu do not enable Easy part first: There is no firewall set up by default on Debian or Ubuntu, or most Linux distros I know of. Do you need a firewall on Linux? Probably not, because most programs on a Linux systems that are listening for incoming connections have to be explicitly started by someone, and were installed from package repositories run by the distro. In Linux, the concept of a firewall is integrated into the kernel itself, providing a level of protection without the need for a separate firewall application. Firewalls are, therefore, pretty unnecessary for most desktop users - unless you start running some kind of webserver, email server etc. Linux has no open ports by default. Disable the Firewall. If you have a connection problem, it’s good to disable the Raspberry Pi firewall and then retest to see if you can connect. To disable the UFW firewall, use the following command: sudo ufw disable. This command will fully disable the UFW firewall service on your Raspberry Pi. Conclusion Support of both internet and unix domain sockets enables this utility to support both local and remote logging. You can view its config file by tying the following command: # vi /etc/rsyslog.conf. # ls /etc/rsyslog.d/. In short /var/log is the location where you should find all Linux logs file. UFW configuration on a remote server requires SSH connection using Terminal. Here’s how to do so on a Ubuntu system via Hostinger: Open hPanel → VPS. Select the relevant VPS. In the SSH access tab, copy the Terminal command similar to the following: ssh username@server-ip. Open Terminal and paste the command. The first piece of Linux malware, dubbed Stoag, was identified in 1996. Staog was a basic virus that attempted to gain root access by attaching itself to running executables, but it did not spread very successfully and was rapidly patched. Stoag made its claim to fame as the first piece of Linux malware, but Bliss, recognized in 1997, was the FryBoyter. • 2 yr. ago. Basically, as a normal private user without server services, you don't need a firewall. Here on Reddit, the firewall ufw is often recommended. Its default configuration blocks all incoming connections and allows all outgoing connections. So what your router usually already does. IcRrIZ.