POLL RESULTS: Do you use a firewall on dedicated Linux / BSD box?

In last months reader poll I asked about Firewall on dedicated UNIX / Linux box.

Do we really need a firewall?

Personally, I install firewall on all boxes to filter out unwanted junk and IPs; even if box is only running public service such as a web server. The overall idea is to limit access and reduce liability on my part if serer got rooted (read as compromised). Remember, bad boys never play by the rules.


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CategoryList of Unix and Linux commands
Disk space analyzersdf duf ncdu pydf
File Managementcat cp mkdir tree
FirewallAlpine Awall CentOS 8 OpenSUSE RHEL 8 Ubuntu 16.04 Ubuntu 18.04 Ubuntu 20.04
Modern utilitiesbat exa
Network UtilitiesNetHogs dig host ip nmap
OpenVPNCentOS 7 CentOS 8 Debian 10 Debian 8/9 Ubuntu 18.04 Ubuntu 20.04
Package Managerapk apt
Processes Managementbg chroot cron disown fg glances gtop jobs killall kill pidof pstree pwdx time vtop
Searchingag grep whereis which
User Informationgroups id lastcomm last lid/libuser-lid logname members users whoami who w
WireGuard VPNAlpine CentOS 8 Debian 10 Firewall Ubuntu 20.04
1 comment… add one
  • Deven Patakar Sep 21, 2008 @ 13:08

    My question is , should we use simple iptables scripts to protect linux servers or should use full fledged linux firewalls (shorewall, ipcop etc). Please suject on it

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