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| '''Uncomplicated Firewall''' ('''UFW''') is a simple-to-use but powerful firewall management software. It is a wrapper around '''iptables''', automatically writing rules for it. | '''Uncomplicated Firewall''' ('''UFW''') is a simple-to-use but powerful firewall management software. It is a wrapper around `iptables`, automatically writing rules for it. <<TableOfContents>> ---- |
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| == Basic Setup == | |
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| This is more than sufficient for servers that are not meant to be web-facing. | == Installation == ---- == Configuration == A basic rule set is: |
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| ufw allow outgoing all ufw deny incoming all |
ufw default deny incoming ufw default allow outgoing |
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| If using custom ports, adjust as needed. This would be set in `/etc/ssh/sshd_config`. | |
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| == HTTP == | === Web Servers === |
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| Regardless of `httpd` flavor (Apache, NGINX, lighttpd, etc), this basic configuration should suffice. | The following rules should allow any web server to operate. |
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| If using custom ports, adjust as needed. | |
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| == FTP == There are standard unencrypted FTP ports: |
=== FTP === |
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| ufw allow 989/tcp ufw allow 990/tcp |
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| For security, encrypted FTP uses a pool of ports. This is the recommended setup for `vsftpd`: | Passive configuration also utilizes a pool of ports. Recommended to use custom ports, so adjust as needed. |
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| ufw allow 990/tcp |
UFW
Uncomplicated Firewall (UFW) is a simple-to-use but powerful firewall management software. It is a wrapper around iptables, automatically writing rules for it.
Contents
Installation
Configuration
A basic rule set is:
ufw default deny incoming ufw default allow outgoing ufw allow ssh ufw allow 22
Web Servers
The following rules should allow any web server to operate.
ufw allow http ufw allow 80 ufw allow https ufw allow 443
FTP
ufw allow 20/tcp ufw allow 21/tcp ufw allow 989/tcp ufw allow 990/tcp
Passive configuration also utilizes a pool of ports. Recommended to use custom ports, so adjust as needed.
ufw allow 40000:42000/tcp