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Merge pull request #1498 from slingamn/changelog.1
changelog updates for v2.5.0-rc1
This commit is contained in:
Shivaram Lingamneni
GitHub
commit
7ba594613b
@ -47,7 +47,7 @@ archives:
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- oragono.motd
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- default.yaml
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- traditional.yaml
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- docs/*
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- docs/MANUAL.md
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- languages/*.yaml
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- languages/*.json
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- languages/*.md
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74
CHANGELOG.md
74
CHANGELOG.md
@ -1,6 +1,80 @@
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# Changelog
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All notable changes to Oragono will be documented in this file.
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## [2.5.0-rc1] - 2021-01-24
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We're pleased to be publishing the release candidate for 2.5.0 (the official release should follow in a week or so).
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This release includes enhancements based on the needs of real-world operators, as well as bug fixes. Highlights include:
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* `UBAN`, a new "unified ban" system for server operators, with a corresponding `CHANSERV HOWTOBAN` command for channel operators (#1447)
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* A new forwarding/overflow channel mode `+f` (#1260)
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* Support for PROXY protocol v2 (#1389)
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This release includes changes to the config file format, including two breaking changes. One is fairly significant: enabling a websocket listener now requires the use of `server.enforce-utf8`, as has been the recommended default since 2.2.0 (so continuing to accept legacy non-UTF-8 content will require disabling websockets). The other is that the "unban" operator capability has been removed (it is now included in the "ban" capability). Other config changes are backwards compatible and do not require updating the file before upgrading.
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This release includes a database change. If you have `datastore.autoupgrade` set to `true` in your configuration, it will be automatically applied when you restart Oragono. Otherwise, you can update the database manually by running `oragono upgradedb` (see the manual for complete instructions).
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Many thanks to [@jlu5](https://github.com/jlu5), [@kylef](https://github.com/kylef) and [@Mikaela](https://github.com/Mikaela) for contributing patches, to [@bogdomania](https://github.com/bogdomania), [@eskimo](https://github.com/eskimo), [@happyhater](https://github.com/happyhater), [@jlu5](https://github.com/jlu5), [@kylef](https://github.com/kylef), [@LukeHoersten](https://github.com/LukeHoersten), [@Mikaela](https://github.com/Mikaela), [@mogad0n](https://github.com/mogad0n), [@robinlemon](https://github.com/robinlemon), and [@vertisan](https://github.com/vertisan) for reporting issues and helping test, and to our translators for contributing translations.
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### Config changes
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* Enabling websockets now requires `server.enforce-utf8 = true` (#1483)
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* `proxy` is now a top-level field of the listener config block; in particular, the PROXY protocol (v1 or v2) can now be required ahead of a plaintext connection. The field is still accepted in its legacy position (inside the `tls` block). (#1389, thanks [@robinlemon](https://github.com/robinlemon)!)
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* Added `accounts.multiclient.always-on-expiration`, allowing always-on clients to be timed out for inactivity (#810, thanks [@bogdomania](https://github.com/bogdomania)!)
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* `local_` prefixes have been stripped from operator capability names, so that, e.g., `local_ban` is now just `ban`. The old names are still accepted. (#1442)
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* The `local_unban` operator capability has been removed (unbanning is now contained in the `ban` permission). (#1442)
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* The recommended value of `accounts.bcrypt-cost` is now `4`, the minimum acceptable value (#1497)
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* `server.ip-limits.custom-limits` now accepts networks that contain multiple CIDRs; the old syntax is still accepted (#1421, thanks [@Mikaela](https://github.com/Mikaela)!
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* A new field, `history.restrictions.query-cutoff`, generalizes the old `history.restrictions.enforce-registration-date` (the old field is still accepted) (#1490, thanks [@Mikaela](https://github.com/Mikaela)!)
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* Added `server.override-services-hostname`, allowing the hostname of NickServ, ChanServ, etc. to be overridden (#1407, thanks [@Mikaela](https://github.com/Mikaela)!)
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* Added a boolean `hide-sts` key to the listener block; this can be used to hide the STS CAP when the listener is secured at layer 3 or 4 (e.g., by a VPN or an E2E mixnet). It will still be necessary to add the relevant IPs to `secure-nets`. (#1428, thanks [@Mikaela](https://github.com/Mikaela)!)
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### Security
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* Improved validation of names and encodings for client-only tags (#1385)
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* Improved auditability of sensitive operator actions (#1443, thanks [@mogad0n](https://github.com/mogad0n)!)
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* `DEFCON 4` and lower now require Tor users to authenticate with SASL (#1450)
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### Fixed
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* Fixed `NS UNSUSPEND` requiring the casefolded / lowercase version of the account name (#1382, thanks [@mogad0n](https://github.com/mogad0n)!)
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* Fixed client-only tags in direct (user-to-user) `PRIVMSG` not being replayed (#1411)
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* Fixed many bugs in import of Anope and Atheme databases (#1403, #1423, #1424, #1431, #1435, #1439, #1444, thanks [@jlu5](https://github.com/jlu5), [@kylef](https://github.com/kylef), and [@Mikaela](https://github.com/Mikaela)!)
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* Fixed case-handling bugs in `RENAME` (i.e., channel rename) (#1456, thanks [@mogad0n](https://github.com/mogad0n)!)
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* Fixed incorrect processing of color code escapes in MOTD files (#1467, thanks [@mogad0n](https://github.com/mogad0n)!)
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* STS is no longer advertised to Tor clients (#1428, thanks [@Mikaela](https://github.com/Mikaela)!)
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* Fixed HELP/HELPOP numerics not including the nick as an argument (#1472, thanks [@kylef](https://github.com/kylef)!)
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* Made connection registration snomasks less confusing (#1396, thanks [@eskimo](https://github.com/eskimo)!)
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* Fixed duplicated nicks in `KLINE` response (#1379, thanks [@mogad0n](https://github.com/mogad0n)!)
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* The `RELAYMSG` tag name is now `draft/relaymsg`, conforming to the amended draft specification (#1468, thanks [@jlu5](https://github.com/jlu5)!)
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* Fixed `SAJOIN` not sending a `MODE` line to the originating client (#1383, thanks [@mogad0n](https://github.com/mogad0n)!)
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* Improved consistency of message sources sent by `CS AMODE` (#1383, thanks [@mogad0n](https://github.com/mogad0n)!)
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* Fixed duplicated `JOIN` line sent to some clients using the `draft/resume-0.5` extension (#1397, thanks [@kylef](https://github.com/kylef)!)
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* Added a warning that MySQL cannot be enabled by rehash (#1452, thanks [@Mikaela](https://github.com/Mikaela)!)
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### Changed
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* Channel-user modes (e.g., `+o`, `+v`) of always-on clients are now persisted in the database (#1345)
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* `/CHANSERV PURGE` now takes `ADD`, `DEL`, and `LIST` subcommands; the separate `UNPURGE` command has been removed; `PURGE ADD` now requires a confirmation code (#1294, thanks [@mogad0n](https://github.com/mogad0n)!)
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* The characters `<`, `>`, `'`, `"`, and `;` are no longer allowed in nicknames (previously registered account names containing these characters are still accepted) (#1436, thanks [@happyhater](https://github.com/happyhater)!)
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* Authenticated clients from Tor now receive their (account-unique) always-on cloaked hostname; this allows channel operators to ban unauthenticated Tor users by banning `*!*@tor-network.onion` (#1479, thanks [@mogad0n](https://github.com/mogad0n)!)
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* Included the network name in the human-readable final parameter of `001 RPL_WELCOME` (#1410)
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* `RELAYMSG` can now take client-only tags (#1470)
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* WebSocket listeners will attempt to negotiate the `text.ircv3.net` [subprotocol](https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#subprotocols); negotiating this is optional for clients (#1483)
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### Added
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* Added `UBAN`, a new command giving server operators a unified interface to D-LINEs (IP bans), K-LINEs (NUH mask bans, which are now deprecated), and account suspensions (`NS SUSPEND`) (#1447)
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* Added `CHANSERV HOWTOBAN`, a ChanServ subcommand that helps channel operators choose an appropriate ban (#1447)
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* Added a new channel mode `+f`; users who cannot join the channel due to `+i` or `+l` will be forwarded to the channel specified by `+f`. (#1260)
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* Added support for the PROXY protocol v2 (#1389, thanks [@robinlemon](https://github.com/robinlemon)!)
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* Added support for `/JOIN 0` (part all channels), requiring a confirmation code (#1417, thanks [@Mikaela](https://github.com/Mikaela)!)
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* Added support for grouped nicknames as SASL usernames (#1476, thanks [@eskimo](https://github.com/eskimo)!)
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* Added history support for `INVITE` (#1409, thanks [@Mikaela](https://github.com/Mikaela)!)
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* Added a new channel setting accessible via `/CS SET`: `history-cutoff`, allowing the channel owner more fine-grained control over who can see history (#1490, thanks [@Mikaela](https://github.com/Mikaela)!)
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* Added the `UTF8ONLY` ISUPPORT token, allowing the server to advertise to clients that only UTF-8 content is accepted (#1483)
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* Added `/NICKSERV RENAME`, an operator-only command that can change the case of an account name (#1380, thanks [@LukeHoersten](https://github.com/LukeHoersten)!)
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### Internal
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* Added caching for serialized messages (#1387)
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* Improved memory efficiency of line reading (#1231)
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## [2.4.0] - 2020-11-08
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We're pleased to announce Oragono 2.4.0, a new stable release.
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@ -1,6 +1,6 @@
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# Developing Oragono
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This is just a bunch of tips and tricks we keep in mind while developing Oragono. If you wanna help develop as well, they might also be worth keeping in mind!
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This is a guide to modifying Oragono's code. If you're just trying to run your own Oragono, or use one, you shouldn't need to worry about these issues.
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## Golang issues
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92
docs/INFO.md
92
docs/INFO.md
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# Oragono Information
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Here's a bunch of misc info about the Oragono server! This can include questions, plans on
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how I'm going forward, how to properly use features, or why Oragono does/doesn't do
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something.
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Essentially, this document acts as a braindump about Oragono while we figure out a better
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place to put all this information.
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## Accounts and Channels
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Most IRC servers out there offer IRC account and channel registration through external
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services such as NickServ and ChanServ. In Oragono, we bundle accounts and channel ownership
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in as a native server feature instead!
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Because there's a lot of aspects of accounts/channels that haven't been specified as native
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commands and all yet, Oragono includes the pseudo-clients NickServ and ChanServ to roughly
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mimic the functionality that other IRCds get from services packages, in a user-facing set
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of commands that's familiar to everyone.
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The plan is to move more features and functionality (such as channel registration, channel
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permissions and all) over to native commands first and to use the NickServ/ChanServ as
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legacy interfaces to access these functions. However, it's gonna be a while before all of
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this is specified by someone like the IRCv3 WG.
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## PROXY
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The PROXY command, specified by [HAProxy's PROXY v1 specifications](https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt),
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allows someone to setup HAProxy in front of Oragono. This allows them to use HAProxy for
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TLS negotiation (allowing older versions of SSL/TLS than Go's inbuilt TLS support does).
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However, it also allows them to update TLS certificates by updating them with HAProxy,
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rather than relying on our `REHASH` command (which is less-well-tested than I'd like
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right now).
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This is a toss-up of course – allowing older versions of TLS might be seen as undesired,
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and I wouldn't use the feature myself, but it's useful for real-world installations which
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is why it exists. The command is only allowed from specific hosts which should restrict it
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appropriately.
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## Server-to-Server Linking (or Federation)
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Right now Oragono doesn't support linking multiple servers together. It's certainly planned,
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but it's a fair while away.
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When I do add S2S linking to Oragono, I want to use it as a testbed for a new sort of
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linking protocol. Mostly, I want a meshy protocol that minimises the effects of netsplits
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while still ensuring that messages get delivered, and preserves the AP nature of IRC
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reliability (in terms of the CAP theorem), which is something that traditional solutions
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based on the Raft protocol don't do.
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Basically, I'm going to continue working on my [DCMI](https://github.com/DanielOaks/dcmi)
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protocol, get that to a point where I'm happy with it and _then_ start looking at S2S
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linking properly. If anyone is interested in server protocols and wants to look at this with
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me, please feel free to reach out!
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## Rehashing
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Rehashing is reloading the config files and TLS certificates. Of course, you can rehash the
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server by connect, opering-up and using the `/REHASH` command. However, similar to other
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IRCds, you can also make the server rehash by sending an appropriate signal to it!
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To make the server rehash from the command line, send it a `SIGHUP` signal. In *nix and OSX,
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you can do this by performing the following command:
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killall -HUP oragono
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This will make the server rehash its configuration files and TLS certificates, and so can be
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useful if you're automatically updating your TLS certs!
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## Rejected Features
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'Rejected' sounds harsh, but basically these are features I've decided I'm not gonna
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implement in Oragono (at least, not until someone convinces me they're worth doing).
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### Force/Auto-Join Channels on Connect
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When a user connects, some IRC servers let you force-join them to a given channel. For
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instance, this could be a channel like `#coolnet` for a network named CoolNet, a lobby
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channel, or something similar.
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My main objection to having this feature is just that I don't like it that much. It doesn't
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seem nice to forcibly join clients to a channel, and I know I'm always annoyed when networks
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do it to me.
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To network operators that want to do this, I'd suggest instead mentioning the channel(s) in
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your MOTD so that your users know the channels exist! If they want to join in, they can do
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it from there :)
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@ -142,6 +142,11 @@ If you're using Arch Linux, you can also install the [`oragono` package](https:/
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For further information and a sample docker-compose file see the separate [Docker documentation](https://github.com/oragono/oragono/blob/master/distrib/docker/README.md).
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## Building from source
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You'll need an [up-to-date distribution of the Go language for your OS and architecture](https://golang.org/dl/). Once you have that, just clone the repository and run `make build`. If everything goes well, you should now have an executable named `oragono` in the base directory of the project.
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## Becoming an operator
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Many administrative actions on an IRC server are performed "in-band" as IRC commands sent from a client. The client in question must be an IRC operator ("oper", "ircop"). The easiest way to become an operator on your new Oragono instance is first to pick a strong, secure password, then "hash" it using the `oragono genpasswd` command (run `oragono genpasswd` from the command line, then enter your password twice), then copy the resulting hash into the `opers` section of your `ircd.yaml` file. Then you can become an operator by issuing the IRC command: `/oper admin mysecretpassword`.
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@ -440,21 +445,20 @@ Setting `server.ip-cloaking.num-bits` to 0 gives users cloaks that don't depend
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## Moderation
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Oragono's multiclient and always-on features mean that moderation (at the server operator level) requires different techniques than a traditional IRC network. Server operators have three principal tools for moderation:
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Oragono's multiclient and always-on features mean that moderation (at the server operator level) requires different techniques than a traditional IRC network. Server operators have two principal tools for moderation:
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1. `/NICKSERV SUSPEND`, which disables a user account and disconnects all associated clients
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2. `/DLINE ANDKILL`, which bans an IP or CIDR and disconnects clients
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3. `/DEFCON`, which can impose emergency restrictions on user activity in response to attacks
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1. `/UBAN`, which can disable user accounts and/or ban offending IPs and networks
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2. `/DEFCON`, which can impose emergency restrictions on user activity in response to attacks
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See the `/HELP` (or `/HELPOP`) entries for these commands for more information, but here's a rough workflow for mitigating spam or other attacks:
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1. Subscribe to the `a` snomask to monitor for abusive registration attempts (this is set automatically in the default operator config, but can be added manually with `/mode mynick +s u`)
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2. Given abusive traffic from a nickname, identify whether they are using an account (this should be displayed in `/WHOIS` output)
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3. If they are using an account, suspend the account with `/NICKSERV SUSPEND`, which will disconnect them
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4. If they are not using an account, or if they're spamming new registrations from an IP, determine the IP (either from `/WHOIS` or from account registration notices) and temporarily `/DLINE` their IP
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2. Given abusive traffic from a nickname, use `/UBAN INFO <nickname>` to find out information about their connection
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3. If they are using an account, suspend the account with `/UBAN ADD <account>`, which will disconnect them
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4. If they are not using an account, or if they're spamming new registrations from an IP, you can add a temporary ban on their IP/network with `/UBAN ADD <ip | network>`
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5. When facing a flood of abusive registrations that cannot be stemmed with `/DLINE`, use `/DEFCON 4` to temporarily restrict registrations. (At `/DEFCON 2`, all new connections to the server will require SASL, but this will likely be disruptive to legitimate users as well.)
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For channel operators, as opposed to server operators, most traditional moderation tools should be effective. In particular, bans on cloaked hostnames (e.g., `/mode #chan +b *!*@98rgwnst3dahu.my.network`) should work as expected. With `force-nick-equals-account` enabled, channel operators can also ban nicknames (with `/mode #chan +b nick`, which Oragono automatically expands to `/mode #chan +b nick!*@*` as a way of banning an account.)
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For channel operators, `/msg ChanServ HOWTOBAN #channel nickname` will provide similar information about the best way to ban a user from a channel.
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-------------------------------------------------------------------------------------------
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