summaryrefslogtreecommitdiff
path: root/hurd/translator/eth-filter.mdwn
blob: a026b0b9402e796341ee140aa94b3ef8585bebbe (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
[[!meta copyright="Copyright © 2013 Free Software Foundation, Inc."]]

[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
id="license" text="Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.2 or
any later version published by the Free Software Foundation; with no Invariant
Sections, no Front-Cover Texts, and no Back-Cover Texts.  A copy of the license
is included in the section entitled [[GNU Free Documentation
License|/fdl]]."]]"""]]

`eth-filter` is a translator that implements a very simple stateless firewal.

# Source

[[source_repositories/incubator]], dde

# Usage:

For instance, to drop any attempt to access port 22:

    settrans -c /dev/eth0f /hurd/eth-filter -i /dev/eth0 -r "not port 22"

    settrans /servers/socket/2 /hurd/pfinet -i /dev/eth0f ...