---
name: "blockdomains"
section: "5"
platform: "linux"
package: "blockdomains"
version: "0.1-1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/blockdomains/5"
---

# blockdomains(5)

block list file format

## NAME

blockdomains - block list file format

## SYNOPSIS

/etc/blockdomains/acl/blocklist.acl

ln -s ../acl/blocklist.acl /etc/blockdomains/blocked/

## DESCRIPTION

**blockdomains** uses one or more block list files which contain declaratios of the domains to block, one domain per line that starts with any number of whitespace characters followed by a period (".") before the domain to block. The blocking applies to the domain and all its sub domains.

Anything not starting with a period (".") is a comment and leading whitespace is ignored. Block list domains start with optional whitespace and a period, followed by the domain name to block, optionally followed by a whitespace and a comment. Like the following:

**Example of block list**\

```
  .bad.domain.com -- domain name up to whitespace is blocked
Blank lines are fine too; they treated as comments. The block list
domains don't need to be column aligned. So, here is another:
.another.domain.to.block
End of block list example.
```

## SEE ALSO

[blockdomains(8)](/blockdomains/8.md)

## AUTHOR

Ralph Ronnquist  \<rrq@rrq.au\>