ViewVC Help
View File | Revision Log | Show Annotations | View Changeset | Root Listing
root/svn/ircd-hybrid/doc/resv.txt
Revision: 32
Committed: Sun Oct 2 20:41:23 2005 UTC (18 years, 5 months ago) by knight
Content type: text/plain
File size: 3774 byte(s)
Log Message:
- svn:keywords

File Contents

# Content
1 /*
2 * doc/resv.txt - Overview of the resv system
3 * Lee Hardy <lee@leeh.co.uk>
4 *
5 * Copyright (C) 2001 Hybrid Development Team
6 *
7 * $Id$
8 */
9
10 RESV
11 -======-
12
13 - What is resv, and why was it coded?
14
15 Resv is a method of 'juping' or 'reserving' nicks and channels, to prevent
16 local clients using them. It is commonly used to block channels which
17 are home to abusers, and which attract DoS. It can also be used to stop
18 people pretending to be services, on a network that doesn't support them.
19
20 It was coded to replace the method in hybrid-6 of blocking channels and
21 nicks, and was implemented in a much cleaner way to make it faster.
22
23 The hybrid-6 method used to have to physically create channels, and
24 suffered flaws, resv does not.
25
26 - How can I create a resv?
27
28 There are two types of resv. 'permanent' and 'temporary'. Temporary
29 resv's will be erased when a server restarts (they will stay through a
30 rehash). Permanent resv's will stay through a restart.
31
32 You may add permanent resv's into ircd.conf, but they are deprecated.
33 They should have the reason for the resv, followed by the nicks and
34 channels being resv'd. The following would block the channel
35 #services, the nick 'services' and any nick ending in 'serv' (ie: chanserv)
36
37 resv {
38 reason = "There are no services on this network";
39 channel = "#services";
40 nick = "services";
41 nick = "*serv";
42 };
43
44 All resv's created by RESV are stored in cresv.conf or nresv.conf depending
45 on the nature of the RESV.
46
47 Syntax: /quote resv <#channel|nick> :<reason>
48
49 So to resv #warez:
50 /quote resv #warez :No warez on this network.
51
52 To resv kiddie01:
53 /quote resv kiddie01 :Abuse
54
55 To resv clone*:
56 /quote resv clone* :clones
57
58 If a non admin does this, he will see:
59 -irc.leeh.co.uk- You must be an admin to perform a wildcard RESV
60
61 - How do I remove a resv?
62
63 If the resv is stored in ircd.conf, then the resv must be removed from there,
64 then a /rehash, should do the trick.
65
66 If the resv was made using /RESV, then use the unresv command:
67
68 Syntax: /quote unresv <#channel|nick>
69
70 - Can I make a resv on all servers?
71
72 No. In Hybrid resv's are local only. If a channel is full of abusers,
73 the solution is not to just block the channel, the abusers themselves
74 should be removed through /kline and /dline.
75
76 - How do I list resv's?
77
78 To list all current resv's:
79 /stats q
80
81 Which will give a reply like:
82 q #warez No warez *@*
83 Q hax No hackers allowed here
84
85 If the first letter is a 'q', then the resv is in [cn]resv.conf, if the
86 first letter is a 'Q' then the resv is hardcoded (in ircd.conf).
87
88 - What does a client see if they try using a channel/nick that is resv'd?
89
90 They see the numeric 437 (ERR_UNAVAILRESOURCE)
91
92 Other networks (namely IRCNet) use this numeric on a split, to indicate
93 the channel cannot be joined, as such it is recognised by a lot of
94 clients.
95
96 - Can an oper see when someone tries to use a resv'd nick/channel?
97
98 No. When there is a valid reason for this, then possibly, but I honestly
99 don't see why anyone needs it.
100
101 - Can I resv a local channel?
102
103 Yes. It takes the same format as creating a resv on a normal channel:
104 /resv &clones :no clonebots!
105
106 - Do you support wildcard channel resv's?
107
108 No. This is mainly for speed reasons. When we are searching nicks, we
109 cannot just check if the nick, and the item in the list of resv'd nicks
110 are string equal, we have to check if they match, so we have to search a
111 full list. With channels however, we can search a hash table to see if an
112 entry exists, if it doesn't, then the channel isn't resv'd. We don't have
113 to search through all the channels.
114
115 Besides.. it's legal for a channel to be called #*warez* anyway ;)

Properties

Name Value
svn:eol-style native
svn:keywords Revision