Mercurial > prosody-modules

annotate mod_limits/README.markdown @ 3505:106b4ae4469b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_pubsub_post/README: Mention use as a webhook receiver
author Kim Alvefur <zash@zash.se>
date Sat, 30 Mar 2019 23:33:58 +0100
parents 8de50be756e5
children b935276ab1b4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
1 ---
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
2 labels:
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
3 - 'Stage-Beta'
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
4 summary: 'Connection-level rate limiting'
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
5 ...
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
7 Introduction
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
8 ============
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
9
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
10 On some servers, especially public ones, it is desired to make sure that
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
11 everyone gets their fair share of system resources (and no more).
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
12
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
13 mod\_limits allows you to specify traffic bandwidth limits, preventing
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
14 any single connection hogging the server's CPU, RAM and bandwidth.
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
15
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
16 Details
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
17 =======
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
18
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
19 mod\_limits detects when a connection has exceeded its traffic allowance
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
20 and temporarily ignores a connection. Due to the way TCP and the OS's
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
21 network API works no data is lost, only slowed.
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
22
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
23 Configuration
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
24 =============
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
25
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
26 Currently mod\_limits is configured per connection type. The possible
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
27 connection types are:
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
28
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
29 - c2s
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
30 - s2sin
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
31 - s2sout
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
32 - component
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
33
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
34 The limits are specified like so in the **global** section of your
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
35 config (they cannot be per-host):
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
36
1820
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
37 ``` {.lua}
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
38 limits = {
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
39 c2s = {
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
40 rate = "3kb/s";
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
41 burst = "2s";
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
42 };
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
43 s2sin = {
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
44 rate = "10kb/s";
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
45 burst = "5s";
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
46 };
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
47 }
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
48 ```
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
49
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
50 All units are in terms of *bytes*, not *bits*, so that "kb/s" is
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
51 interpreted as "kilobytes per second", where a kilobyte is 1000 bytes.
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
52
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
53 Compatibility
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
54 =============
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
55
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
56 ----- -------------------
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
57 0.9 Works
1820
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
58 0.8 Doesn't work(\*)
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
59 ----- -------------------
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
60
1820
8de50be756e5 Various README files: Correct indentation levels, fix syntax and other small fixes
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
61 (\*) This module can be made to work in 0.8 if you do two things:
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
62
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
63 1. Install
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
64 [util.throttle](http://hg.prosody.im/0.9/raw-file/d46948d3018a/util/throttle.lua)
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
65 into your Prosody source's util/ directory.
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
66 2. If you use libevent apply [this
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
67 patch](http://prosody.im/patches/prosody08-mod-limits-fix.patch) to
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
68 net/server\_event.lua.