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80 lines
3.3 KiB
Markdown
80 lines
3.3 KiB
Markdown
---
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layout: post
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comments: true
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title: "Private/Secret IRC channels"
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category: [english]
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tags: [english, irc]
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redirect_from: /english/2015/06/08/private_secret_channels.html
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sitemap: true
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robots: noai
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---
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_People often wonder about this and I thought that I could probably write about
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this, how do you make IRC channel secret/private, either hiding it from other
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people or not letting others in._
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_Modes spbiI are standard and should be the same on all IRCds. I am also
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assuming that your network uses Atheme IRC Services or fork of it._
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To make channel secret, there are two useful modes. You might also want to mlock
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them with `/msg chanserv help set mlock`.
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- +s — hides the channel from all channel lists (for non-opers) -i). Keep in
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mind that you always see channels that you are on or share with other people
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in whois. +p also prevents `/knock` (which is command to request invite to the
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channel) on some IRCds.
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Other nice modes that you may be interested in are:
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- +b — (ban) depnding on does your network support extbans, try
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`/quote help extban`.
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- +r — on Charybdis prevents unidentified users from joining the channel, you
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will want this with RESTRICTED.
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- InspIRCd uses +R
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- - S — on Charybdis prevents users not using SSL/TLS from joining.
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- InspIRCd uses +z
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And to make channel private, there are two ways, mode +i/+I and ChanServ
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RESTRICTED (auto-kban unauthorized users).
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With RESTRICTED you will want to prevent unidentified users from joining or you
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will get people attempting to join while unidentified and then banned
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immediately and unable to join after identifying.
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To use it,
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1. Give people who are supposed to be on the channel flags, I use +ViA which
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means auto-**Voice**, **i**nvite oneself and can see **A**ccess lists, you
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don't have to use these, but these are probably the most safe flags and the
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users must have at least one account to not be kbanned.
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`/msg ChanServ flags #channel account +ViA`
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2. `/msg ChanServ set #channel restricted on`
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3. You are ready, but you might also want to
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`/msg ChanServ set #channel private on`, so people cannot use
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`/msg chanserv access #channel list` to see who are the secret people you let
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in (and who aren't on the channel between auto-kban).
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And last, mode +i and +I which are the oldest way to do this, but also the most
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difficult.
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First you set the mode +i and now everyone must be `/invite`d to the channel or
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they cannot join. Then you set +I like you would set a ban (read the `/quote
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help extban), here I assume you use Charybdis.
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To allow user with account `friend` you would `/mode +I $a:friend` and they are
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able to join freely without needing to be `/invite`d every time.
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You might also find the modes `+g` (Charybdis) and `+A` (InspIRCd) helpful as
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they allow everyone to use the `/invite` command.
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I said that +iI is difficult and I must probably explain why it's so.
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- It doesn't use services and the lists get emptied always when the channel gets
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empty.
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- It's tied to whatever you give it, if you give it hostmask and that changes,
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the person cannot get in anymore. Also if you gave it extban matching to
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accountname and the person changes accountname, they are again unable to join
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until the +I is updated.
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- _These were the reasons that came to mind at first, if you have others, feel
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free to suggest them._
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