ngircd.conf.5.tmpl 21 KB

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  1. .\"
  2. .\" ngircd.conf(5) manual page template
  3. .\"
  4. .TH ngircd.conf 5 "Jan 2021" ngIRCd "ngIRCd Manual"
  5. .SH NAME
  6. ngircd.conf \- configuration file of ngIRCd
  7. .SH SYNOPSIS
  8. .B :ETCDIR:/ngircd.conf
  9. .SH DESCRIPTION
  10. .BR ngircd.conf
  11. is the configuration file of the
  12. .BR ngircd (8)
  13. Internet Relay Chat (IRC) daemon, which must be customized to the local
  14. preferences and needs.
  15. .PP
  16. Most variables can be modified while the ngIRCd daemon is already running:
  17. It will reload its configuration file when a HUP signal or REHASH command
  18. is received.
  19. .SH "FILE FORMAT"
  20. The file consists of sections and parameters. A section begins with the name
  21. of the section in square brackets and continues until the next section
  22. begins.
  23. .PP
  24. Sections contain parameters of the form
  25. .PP
  26. .RS
  27. .I name
  28. =
  29. .I value
  30. .RE
  31. .PP
  32. Empty lines and any line beginning with a semicolon (';') or a hash ('#')
  33. character are treated as a comment and will be ignored. Leading and trailing
  34. whitespaces are trimmed before any processing takes place.
  35. .PP
  36. The file format is line-based - that means, each non-empty newline-terminated
  37. line represents either a comment, a section name, or a parameter.
  38. .PP
  39. Section and parameter names are not case sensitive.
  40. .PP
  41. There are three types of variables:
  42. .I booleans,
  43. .I text strings,
  44. and
  45. .I numbers.
  46. Boolean values are
  47. .I true
  48. if they are "yes", "true", or any non-null integer. Text strings are used 1:1
  49. without leading and following spaces; there is no way to quote strings. And
  50. for numbers all decimal integer values are valid.
  51. .PP
  52. In addition, some string or numerical variables accept lists of values,
  53. separated by commas (",").
  54. .SH "SECTION OVERVIEW"
  55. The file can contain blocks of seven types: [Global], [Limits], [Options],
  56. [SSL], [Operator], [Server], and [Channel].
  57. .PP
  58. The main configuration of the server is stored in the
  59. .I [Global]
  60. section, like the server name, administrative information and the ports on
  61. which the server should be listening. The variables in this section have to be
  62. adjusted to the local requirements most of the time, whereas all the variables
  63. in the other sections can be left on their defaults very often.
  64. .PP
  65. Options in the
  66. .I [Limits]
  67. block are used to tweak different limits and timeouts of the daemon, like the
  68. maximum number of clients allowed to connect to this server. Variables in the
  69. .I [Options]
  70. section can be used to enable or disable specific features of ngIRCd, like
  71. support for IDENT, PAM, IPv6, and protocol and cloaking features. The
  72. .I [SSL]
  73. block contains all SSL-related configuration variables. These three sections
  74. are all optional.
  75. .PP
  76. IRC operators of this server are defined in
  77. .I [Operator]
  78. blocks. Links to remote servers are configured in
  79. .I [Server]
  80. sections. And
  81. .I [Channel]
  82. blocks are used to configure pre-defined ("persistent") IRC channels.
  83. .PP
  84. There can be more than one [Operator], [Server] and [Channel] section per
  85. configuration file, one for each operator, server, and channel. [Global],
  86. [Limits], [Options], and [SSL] sections can occur multiple times, too, but
  87. each variable overwrites itself, only the last assignment is relevant.
  88. .SH [GLOBAL]
  89. The
  90. .I [Global]
  91. section is used to define the main configuration of the server,
  92. like the server name and the ports on which the server should be listening.
  93. These settings depend on your personal preferences, so you should make sure
  94. that they correspond to your installation and setup!
  95. .TP
  96. \fBName\fR (string; required)
  97. Server name in the IRC network. This is an individual name of the IRC
  98. server, it is not related to the DNS host name. It must be unique in the
  99. IRC network and must contain at least one dot (".") character.
  100. .TP
  101. \fBAdminInfo1\fR, \fBAdminInfo2\fR, \fBAdminEMail\fR (string)
  102. Information about the server and the administrator, used by the ADMIN
  103. command. This information is not required by the server but by RFC!
  104. .TP
  105. \fBHelpFile\fR (string)
  106. Text file which contains the ngIRCd help text. This file is required
  107. to display help texts when using the "HELP <cmd>" command.
  108. Please note: Changes made to this file take effect when ngircd starts up
  109. or is instructed to re-read its configuration file.
  110. .TP
  111. \fBInfo\fR (string)
  112. Info text of the server. This will be shown by WHOIS and LINKS requests for
  113. example.
  114. .TP
  115. \fBListen\fR (list of strings)
  116. A comma separated list of IP address on which the server should listen.
  117. If unset, the defaults value is "0.0.0.0" or, if ngIRCd was compiled
  118. with IPv6 support, "::,0.0.0.0". So the server listens on all configured
  119. IP addresses and interfaces by default.
  120. .TP
  121. \fBMotdFile\fR (string)
  122. Text file with the "message of the day" (MOTD). This message will be shown to
  123. all users connecting to the server. Please note: Changes made to this file
  124. take effect when ngircd starts up or is instructed to re-read its
  125. configuration file.
  126. .TP
  127. \fBMotdPhrase\fR (string)
  128. A simple Phrase (<127 chars) if you don't want to use a MOTD file.
  129. .TP
  130. \fBNetwork\fR (string)
  131. The name of the IRC network to which this server belongs. This name is
  132. optional, should only contain ASCII characters, and can't contain spaces.
  133. It is only used to inform clients. The default is empty, so no network
  134. name is announced to clients.
  135. .TP
  136. \fBPassword\fR (string)
  137. Global password for all users needed to connect to the server. The default is
  138. empty, so no password is required. Please note: This feature is not available
  139. if ngIRCd is using PAM!
  140. .TP
  141. \fBPidFile\fR (string)
  142. This tells ngIRCd to write its current process ID to a file. Note that the
  143. "PID file" is written AFTER chroot and switching the user ID, therefore the
  144. directory the file resides in must be writable by the ngIRCd user and exist
  145. in the chroot directory (if configured, see above).
  146. .TP
  147. \fBPorts\fR (list of numbers)
  148. Port number(s) on which the server should listen for unencrypted connections.
  149. There may be more than one port, separated with commas (","). Default: 6667.
  150. .TP
  151. \fBServerGID\fR (string or number)
  152. Group ID under which the ngIRCd daemon should run; you can use the name of the
  153. group or the numerical ID.
  154. .PP
  155. .RS
  156. .B Attention:
  157. .br
  158. For this to work the server must have been started with root privileges!
  159. .RE
  160. .TP
  161. \fBServerUID\fR (string or number)
  162. User ID under which the ngIRCd daemon should run; you can use the name of the
  163. user or the numerical ID.
  164. .PP
  165. .RS
  166. .B Attention:
  167. .br
  168. For this to work the server must have been started with root privileges! In
  169. addition, the configuration and MOTD files must be readable by this user,
  170. otherwise RESTART and REHASH won't work!
  171. .RE
  172. .SH [LIMITS]
  173. This section is used to define some limits and timeouts for this ngIRCd
  174. instance. Default values should be safe, but it is wise to double-check :-)
  175. .TP
  176. \fBConnectRetry\fR (number)
  177. The server tries every <ConnectRetry> seconds to establish a link to not yet
  178. (or no longer) connected servers. Default: 60.
  179. .TP
  180. \fBIdleTimeout\fR (number)
  181. Number of seconds after which the whole daemon should shutdown when no
  182. connections are left active after handling at least one client (0: never). This
  183. can be useful for testing or when ngIRCd is started using "socket activation"
  184. with systemd(8), for example. Default: 0.
  185. .TP
  186. \fBMaxConnections\fR (number)
  187. Maximum number of simultaneous in- and outbound connections the server is
  188. allowed to accept (0: unlimited). Default: 0.
  189. .TP
  190. \fBMaxConnectionsIP\fR (number)
  191. Maximum number of simultaneous connections from a single IP address that
  192. the server will accept (0: unlimited). This configuration options lowers
  193. the risk of denial of service attacks (DoS). Default: 5.
  194. .TP
  195. \fBMaxJoins\fR (number)
  196. Maximum number of channels a user can be member of (0: no limit).
  197. Default: 10.
  198. .TP
  199. \fBMaxNickLength\fR (number)
  200. Maximum length of an user nickname (Default: 9, as in RFC 2812). Please
  201. note that all servers in an IRC network MUST use the same maximum nickname
  202. length!
  203. .TP
  204. \fBMaxPenaltyTime\fR (number)
  205. Maximum penalty time increase in seconds, per penalty event. Set to -1 for no
  206. limit (the default), 0 to disable penalties altogether. ngIRCd doesn't use
  207. penalty increases higher than 2 seconds during normal operation, so values
  208. greater than 1 rarely make sense.
  209. .TP
  210. \fBMaxListSize\fR (number)
  211. Maximum number of channels returned in response to a LIST command. Default: 100.
  212. .TP
  213. \fBPingTimeout\fR (number)
  214. After <PingTimeout> seconds of inactivity the server will send a PING to
  215. the peer to test whether it is alive or not. Default: 120.
  216. .TP
  217. \fBPongTimeout\fR (number)
  218. If a client fails to answer a PING with a PONG within <PongTimeout>
  219. seconds, it will be disconnected by the server. Default: 20.
  220. .SH [OPTIONS]
  221. Optional features and configuration options to further tweak the behavior of
  222. ngIRCd are configured in this section. If you want to get started quickly, you
  223. most probably don't have to make changes here -- they are all optional.
  224. .TP
  225. \fBAllowedChannelTypes\fR (string)
  226. List of allowed channel types (channel prefixes) for newly created channels
  227. on the local server. By default, all supported channel types are allowed.
  228. Set this variable to the empty string to disallow creation of new channels
  229. by local clients at all. Default: #&+
  230. .TP
  231. \fBAllowRemoteOper\fR (boolean)
  232. If this option is active, IRC operators connected to remote servers are allowed
  233. to control this local server using administrative commands, for example like
  234. CONNECT, DIE, SQUIT etc. Default: no.
  235. .TP
  236. \fBChrootDir\fR (string)
  237. A directory to chroot in when everything is initialized. It doesn't need
  238. to be populated if ngIRCd is compiled as a static binary. By default ngIRCd
  239. won't use the chroot() feature.
  240. .PP
  241. .RS
  242. .B Attention:
  243. .br
  244. For this to work the server must have been started with root privileges!
  245. .RE
  246. .TP
  247. \fBCloakHost\fR (string)
  248. Set this hostname for every client instead of the real one. Default: empty,
  249. don't change. Use %x to add the hashed value of the original hostname.
  250. .TP
  251. \fBCloakHostModeX\fR (string)
  252. Use this hostname for hostname cloaking on clients that have the user mode
  253. "+x" set, instead of the name of the server. Default: empty, use the name
  254. of the server. Use %x to add the hashed value of the original hostname
  255. .TP
  256. \fBCloakHostSalt\fR (string)
  257. The Salt for cloaked hostname hashing. When undefined a random hash is
  258. generated after each server start.
  259. .TP
  260. \fBCloakUserToNick\fR (boolean)
  261. Set every clients' user name and real name to their nickname and hide the one
  262. supplied by the IRC client. Default: no.
  263. .TP
  264. \fBConnectIPv4\fR (boolean)
  265. Set this to no if you do not want ngIRCd to connect to other IRC servers using
  266. the IPv4 protocol. This allows the usage of ngIRCd in IPv6-only setups.
  267. Default: yes.
  268. .TP
  269. \fBConnectIPv6\fR (boolean)
  270. Set this to no if you do not want ngIRCd to connect to other IRC servers using
  271. the IPv6 protocol.
  272. Default: yes.
  273. .TP
  274. \fBDefaultUserModes\fR (string)
  275. Default user mode(s) to set on new local clients. Please note that only modes
  276. can be set that the client could set using regular MODE commands, you can't
  277. set "a" (away) for example!
  278. Default: none.
  279. .TP
  280. \fBDNS\fR (boolean)
  281. If set to false, ngIRCd will not make any DNS lookups when clients connect.
  282. If you configure the daemon to connect to other servers, ngIRCd may still
  283. perform a DNS lookup if required.
  284. Default: yes.
  285. .TP
  286. \fBIdent\fR (boolean)
  287. If ngIRCd is compiled with IDENT support this can be used to disable IDENT
  288. lookups at run time.
  289. Users identified using IDENT are registered without the "~" character
  290. prepended to their user name.
  291. Default: yes.
  292. .TP
  293. \fBIncludeDir\fR (string)
  294. Directory containing configuration snippets (*.conf), that should be read in
  295. after parsing the current configuration file.
  296. Default: none.
  297. .TP
  298. \fBMorePrivacy\fR (boolean)
  299. This will cause ngIRCd to censor user idle time, logon time as well as the
  300. PART/QUIT messages (that are sometimes used to inform everyone about which
  301. client software is being used). WHOWAS requests are also silently ignored,
  302. and NAMES output doesn't list any clients for non-members.
  303. This option is most useful when ngIRCd is being used together with
  304. anonymizing software such as TOR or I2P and one does not wish to make it
  305. too easy to collect statistics on the users.
  306. Default: no.
  307. .TP
  308. \fBNoticeBeforeRegistration\fR (boolean)
  309. Normally ngIRCd doesn't send any messages to a client until it is registered.
  310. Enable this option to let the daemon send "NOTICE *" messages to clients
  311. while connecting. Default: no.
  312. .TP
  313. \fBOperCanUseMode\fR (boolean)
  314. Should IRC Operators be allowed to use the MODE command even if they are
  315. not(!) channel-operators? Default: no.
  316. .TP
  317. \fBOperChanPAutoOp\fR (boolean)
  318. Should IRC Operators get AutoOp (+o) in persistent (+P) channels?
  319. Default: yes.
  320. .TP
  321. \fBOperServerMode\fR (boolean)
  322. If \fBOperCanUseMode\fR is enabled, this may lead the compatibility problems
  323. with Servers that run the ircd-irc2 Software. This Option "masks" mode
  324. requests by non-chanops as if they were coming from the server. Default: no;
  325. only enable it if you have ircd-irc2 servers in your IRC network.
  326. .TP
  327. \fBPAM\fR (boolean)
  328. If ngIRCd is compiled with PAM support this can be used to disable all calls
  329. to the PAM library at runtime; all users connecting without password are
  330. allowed to connect, all passwords given will fail.
  331. Users identified using PAM are registered without the "~" character
  332. prepended to their user name.
  333. Default: yes.
  334. .TP
  335. \fBPAMIsOptional\fR (boolean)
  336. When PAM is enabled, all clients are required to be authenticated using PAM;
  337. connecting to the server without successful PAM authentication isn't possible.
  338. If this option is set, clients not sending a password are still allowed to
  339. connect: they won't become "identified" and keep the "~" character prepended
  340. to their supplied user name.
  341. Please note:
  342. To make some use of this behavior, it most probably isn't useful to enable
  343. "Ident", "PAM" and "PAMIsOptional" at the same time, because you wouldn't be
  344. able to distinguish between Ident'ified and PAM-authenticated users: both
  345. don't have a "~" character prepended to their respective user names!
  346. Default: no.
  347. .TP
  348. \fBPAMServiceName\fR (string)
  349. When PAM is enabled, this value determines the used PAM configuration.
  350. This setting allows running multiple ngIRCd instances with different
  351. PAM configurations on each instance. If you set it to "ngircd-foo",
  352. PAM will use /etc/pam.d/ngircd-foo instead of the default
  353. /etc/pam.d/ngircd.
  354. Default: ngircd.
  355. .TP
  356. \fBRequireAuthPing\fR (boolean)
  357. Let ngIRCd send an "authentication PING" when a new client connects, and
  358. register this client only after receiving the corresponding "PONG" reply.
  359. Default: no.
  360. .TP
  361. \fBScrubCTCP\fR (boolean)
  362. If set to true, ngIRCd will silently drop all CTCP requests sent to it from
  363. both clients and servers. It will also not forward CTCP requests to any
  364. other servers. CTCP requests can be used to query user clients about which
  365. software they are using and which versions said software is. CTCP can also be
  366. used to reveal clients IP numbers. ACTION CTCP requests are not blocked,
  367. this means that /me commands will not be dropped, but please note that
  368. blocking CTCP will disable file sharing between users!
  369. Default: no.
  370. .TP
  371. \fBSyslogFacility\fR (string)
  372. Syslog "facility" to which ngIRCd should send log messages. Possible
  373. values are system dependent, but most probably "auth", "daemon", "user"
  374. and "local1" through "local7" are possible values; see syslog(3).
  375. Default is "local5" for historical reasons, you probably want to
  376. change this to "daemon", for example.
  377. .TP
  378. \fBWebircPassword\fR (string)
  379. Password required for using the WEBIRC command used by some Web-to-IRC
  380. gateways. If not set or empty, the WEBIRC command can't be used.
  381. Default: not set.
  382. .SH [SSL]
  383. All SSL-related configuration variables are located in the
  384. .I [SSL]
  385. section. Please note that this whole section is only recognized by ngIRCd
  386. when it is compiled with support for SSL using OpenSSL or GnuTLS!
  387. .TP
  388. \fBCertFile\fR (string)
  389. SSL Certificate file of the private server key.
  390. .TP
  391. \fBCipherList\fR (string)
  392. Select cipher suites allowed for SSL/TLS connections. This defaults to
  393. "HIGH:!aNULL:@STRENGTH:!SSLv3" (OpenSSL) or "SECURE128:-VERS-SSL3.0" (GnuTLS).
  394. Please see 'man 1ssl ciphers' (OpenSSL) and 'man 3 gnutls_priority_init'
  395. (GnuTLS) for details.
  396. .TP
  397. \fBDHFile\fR (string)
  398. Name of the Diffie-Hellman Parameter file. Can be created with GnuTLS
  399. "certtool \-\-generate-dh-params" or "openssl dhparam". If this file is not
  400. present, it will be generated on startup when ngIRCd was compiled with GnuTLS
  401. support (this may take some time). If ngIRCd was compiled with OpenSSL, then
  402. (Ephemeral)-Diffie-Hellman Key Exchanges and several Cipher Suites will not be
  403. available.
  404. .TP
  405. \fBKeyFile\fR (string)
  406. Filename of SSL Server Key to be used for SSL connections. This is required
  407. for SSL/TLS support.
  408. .TP
  409. \fBKeyFilePassword\fR (string)
  410. OpenSSL only: Password to decrypt the private key file.
  411. .TP
  412. \fBPorts\fR (list of numbers)
  413. Same as \fBPorts\fR , except that ngIRCd will expect incoming connections
  414. to be SSL/TLS encrypted. Common port numbers for SSL-encrypted IRC are 6669
  415. and 6697. Default: none.
  416. .SH [OPERATOR]
  417. .I [Operator]
  418. sections are used to define IRC Operators. There may be more than one
  419. .I [Operator]
  420. block, one for each local operator.
  421. .TP
  422. \fBName\fR (string)
  423. ID of the operator (may be different of the nickname).
  424. .TP
  425. \fBPassword\fR (string)
  426. Password of the IRC operator.
  427. .TP
  428. \fBMask\fR (string)
  429. Mask that is to be checked before an /OPER for this account is accepted.
  430. Example: nick!ident@*.example.com
  431. .SH [SERVER]
  432. Other servers are configured in
  433. .I [Server]
  434. sections. If you configure a port for the connection, then this ngIRCd
  435. tries to connect to the other server on the given port (active);
  436. if not, it waits for the other server to connect (passive).
  437. .PP
  438. ngIRCd supports "server groups": You can assign an "ID" to every server
  439. with which you want this ngIRCd to link, and the daemon ensures that at
  440. any given time only one direct link exists to servers with the same ID.
  441. So if a server of a group won't answer, ngIRCd tries to connect to the next
  442. server in the given group (="with the same ID"), but never tries to connect
  443. to more than one server of this group simultaneously.
  444. .PP
  445. There may be more than one
  446. .I [Server]
  447. block.
  448. .TP
  449. \fBName\fR (string)
  450. IRC name of the remote server.
  451. .TP
  452. \fBHost\fR (string)
  453. Internet host name (or IP address) of the peer.
  454. .TP
  455. \fBBind\fR (string)
  456. IP address to use as source IP for the outgoing connection. Default is
  457. to let the operating system decide.
  458. .TP
  459. \fBPort\fR (number)
  460. Port of the remote server to which ngIRCd should connect (active).
  461. If no port is assigned to a configured server, the daemon only waits for
  462. incoming connections (passive, default).
  463. .TP
  464. \fBMyPassword\fR (string)
  465. Own password for this connection. This password has to be configured as
  466. \fBPeerPassword\fR on the other server. Must not have ':' as first character.
  467. .TP
  468. \fBPeerPassword\fR (string)
  469. Foreign password for this connection. This password has to be configured as
  470. \fBMyPassword\fR on the other server.
  471. .TP
  472. \fBGroup\fR (number)
  473. Group of this server (optional).
  474. .TP
  475. \fBPassive\fR (boolean)
  476. Disable automatic connection even if port value is specified. Default: false.
  477. You can use the IRC Operator command CONNECT later on to create the link.
  478. .TP
  479. \fBSSLConnect\fR (boolean)
  480. Connect to the remote server using TLS/SSL. Default: false.
  481. .TP
  482. \fBServiceMask\fR (string)
  483. Define a (case insensitive) list of masks matching nicknames that should be
  484. treated as IRC services when introduced via this remote server, separated
  485. by commas (","). REGULAR SERVERS DON'T NEED this parameter, so leave it empty
  486. (which is the default).
  487. .PP
  488. .RS
  489. When you are connecting IRC services which mask as a IRC server and which use
  490. "virtual users" to communicate with, for example "NickServ" and "ChanServ",
  491. you should set this parameter to something like "*Serv", "*Serv,OtherNick",
  492. or "NickServ,ChanServ,XyzServ".
  493. .SH [CHANNEL]
  494. Pre-defined channels can be configured in
  495. .I [Channel]
  496. sections. Such channels are created by the server when starting up and even
  497. persist when there are no more members left.
  498. .PP
  499. Persistent channels are marked with the mode 'P', which can be set and unset
  500. by IRC operators like other modes on the fly.
  501. .PP
  502. There may be more than one
  503. .I [Channel]
  504. block.
  505. .TP
  506. \fBName\fR (string)
  507. Name of the channel, including channel prefix ("#" or "&").
  508. .TP
  509. \fBTopic\fR (string)
  510. Topic for this channel.
  511. .TP
  512. \fBModes\fR (string)
  513. Initial channel modes, as used in "MODE" commands. Modifying lists (ban list,
  514. invite list, exception list) is supported.
  515. .PP
  516. .RS
  517. This option can be specified multiple times, evaluated top to bottom.
  518. .RE
  519. .TP
  520. \fBKeyFile\fR (string)
  521. Path and file name of a "key file" containing individual channel keys for
  522. different users. The file consists of plain text lines with the following
  523. syntax (without spaces!):
  524. .PP
  525. .RS
  526. .RS
  527. .I user
  528. :
  529. .I nick
  530. :
  531. .I key
  532. .RE
  533. .PP
  534. .I user
  535. and
  536. .I nick
  537. can contain the wildcard character "*".
  538. .br
  539. .I key
  540. is an arbitrary password.
  541. .PP
  542. Valid examples are:
  543. .PP
  544. .RS
  545. *:*:KeY
  546. .br
  547. *:nick:123
  548. .br
  549. ~user:*:xyz
  550. .RE
  551. .PP
  552. The key file is read on each JOIN command when this channel has a key
  553. (channel mode +k). Access is granted, if a) the channel key set using the
  554. MODE +k command or b) one of the lines in the key file match.
  555. .PP
  556. .B Please note:
  557. .br
  558. The file is not reopened on each access, so you can modify and overwrite it
  559. without problems, but moving or deleting the file will have not effect until
  560. the daemon re-reads its configuration!
  561. .RE
  562. .SH HINTS
  563. It's wise to use "ngircd \-\-configtest" to validate the configuration file
  564. after changing it. See
  565. .BR ngircd (8)
  566. for details.
  567. .SH AUTHOR
  568. Alexander Barton, <alex@barton.de>
  569. .br
  570. Florian Westphal, <fw@strlen.de>
  571. .PP
  572. Homepage: http://ngircd.barton.de/
  573. .SH "SEE ALSO"
  574. .BR ngircd (8)
  575. .\"
  576. .\" -eof-