DnsLookup

[mars]

hi
is there a dnslookup script for ptokax
i did a search but could not find anything

thanks

[Nando]

yes there is
but not here xD

[PPK]

Simple DNS lookup script.
Require LuaSocket.
Use it with command !dnslookup hostname

require "socket"

function ChatArrival(tUser, sData)
   if Core.GetUserValue(tUser, 11) == true and string.find(SetMan.GetString(29), string.sub(sData, 4+string.len(tUser.sNick), 4+string.len(tUser.sNick)), 1, true) then
      if string.sub(sData, 5+string.len(tUser.sNick), 14+string.len(tUser.sNick), true) ~= "dnslookup " then
         return false
      end

      dnstolookup = string.sub(sData, 15+string.len(tUser.sNick), sData:len()-1, true)

      if dnstolookup:len() == 0 then
         Core.SendToUser(tUser, "<"..Core.GetHubSecAlias().."> Error, no DNS specified!|")
         return true
      end

      result, msg = socket.dns.toip(dnstolookup)
      if result then
         Core.SendToUser(tUser, "<"..Core.GetHubSecAlias().."> "..dnstolookup.." have IP address: "..result)
      else
         Core.SendToUser(tUser, "<"..Core.GetHubSecAlias().."> DNS lookup failed because: "..msg)
      end

      return true
   end
end

[mars]

Thank you

However I did not explain what I was looking for properly.

What I am trying to do is have a script that checks when a user logs into the hub and does an NSLookUp on his IP address (using a name server that I can provide). If lookup returns a DNS entry then its ok, but if it comes back empty it must warn or kick the user.

This is for a hub running on a private network with its own nameserver

[PPK]

Sorry but i don't see any good reason for script like that :

[mars]

Hi
as we have our own wireless network with about 4000 people it is very important for us that the client details is upto date and he must have a dns and ips on the network before he can join dc
The script will check his dns and will allow him on the network if all his details is upto date
This will save us the time to check each persons details

thanks

[PPK]

Huh, now it is getting really complicated.
I can create simple script that will use user ip to resolve dns and disconnect user without dns. I can't do that with dns server you provide, it will use os dns settings because i don't know any library with support for custom dns servers  :

[mars]

the os dns will work fine

thanks

[PPK]

Require LuaSocket.

require "socket"

function UserConnected(tUser)
   if socket.dns.tohostname(tUser.sIP) == nil then
      Core.SendToUser(tUser, "<"..Core.GetHubSecAlias().."> Sorry, we don't accept users without updated DNS!|")
      Core.Disconnect(tUser)

      return true
   end
end

[mars]

Thanks

[mars]

Hi PPK

Could you please explain to me how to install LuaSocket on a Windows PC running PtokaX 4.2.0. I've tried extracting the archive into PtokaX/scripts, but when I try and run it it tells me there are missing files.

Thanks

[ATAG]

Get a correct version of PxLuaSocket and extract it to the libs folder (you have to create it manually).
maybe...

[mars]

thanks
any more help would be apreciated as we are still having problems with errors in windows 7

[ATAG]

Sorry, i was wrong.

Newer libs are here.

[mars]

Sorry, i was wrong.

Newer libs are here.

Hi there

I extracted the new libs you provides into /PtokaX/scripts/libs, and put the dnslookup.lua script into the /PtokaX/scripts folder. When attempting to start the dnslookup script, I get the following error:

[07:26:12 PM] Syntax C:\Users\mars\Desktop\ptokaX\scripts\dns.lua:1: module 'socket' not found:
   no field package.preload['socket']
   no file 'C:\Users\mars\Desktop\PtokaX\scripts\libs'
   no file 'C:\Users\mars\Desktop\PtokaX\scripts\libs'

Any help would be appreciated.

Thanks

[the-master]

is the hub on linux or windows?

[mars]

windows 7

[the-master]

You're right, runs on Xp, but not on win7 :-(

[ATAG]

Try to extract the whole LuaSocket-2.0.2.7z into "PtokaX\libs".

[15:59:49] No syntax errors in script file dns.lua
[15:59:49] Script started.

(tested on Win7 x64 & 64 bit Px)

[mars]

ATAG: I have tried extracting the entire LuaSocket-2.0.2.7z into PtokaX\libs directory and PtokaX\scripts\libs directory, but still get the same problem.

Can you perhaps explain what you did to test it in more detail?

Thanks

[ATAG]

It seems like x86 version doesn't work for me (too)...

[21:26:51] Syntax D:\PtokaX\libs\socket.lua:18: attempt to index local 'socket' (a boolean value)

It returns only a true boolean (instead of userdata type), ask PPK for help!

[mars]

Hi PPK

can you help

[PPK]

WorksForMe?

Code: Testing script

require "socket"
require "mime"

Core.SendToOps("PtokaX version: "..Core.Version
               .."\nPtokaX build: "..Core.BuildNumber
               .."\nLua version: ".._VERSION

               .."\n\nLoaded Lua libraries:\n"

               .."\nLuaSocket version: "..socket._VERSION
               .."\nLuaMime version: "..mime._VERSION
            )

With stable PtokaX http://www.ptokax.org/files/0.4.2.0.7z and correct LuaSocket lib http://www.ptokax.org/files/Libs-240/LuaSocket-2.0.2.7z

[2012-09-23 23:08:34] PtokaX version: 0.4.2.0
PtokaX build: 241
Lua version: Lua 5.1

Loaded Lua libraries:

LuaSocket version: LuaSocket 2.0.2
LuaMime version: MIME 1.0.2

With testing PtokaX with Lua 5.1.5 http://www.ptokax.org/files/0.4.2.0b401-Lua5.1.5.7z and correct LuaSocket lib http://www.ptokax.org/files/Libs-376/LuaSocket-2.0.2.7z

[2012-09-23 23:09:44] PtokaX version: 0.4.2.0
PtokaX build: 401
Lua version: Lua 5.1

Loaded Lua libraries:

LuaSocket version: LuaSocket 2.0.2
LuaMime version: MIME 1.0.2

With testing PtokaX with Lua 5.2.1 http://www.ptokax.org/files/0.4.2.0b401-Lua5.2.1.7z and correct LuaSocket lib http://www.ptokax.org/files/Libs-376/LuaSocket-2.0.2.7z

[2012-09-23 23:10:24] PtokaX version: 0.4.2.0
PtokaX build: 401
Lua version: Lua 5.2

Loaded Lua libraries:

LuaSocket version: LuaSocket 2.0.2
LuaMime version: MIME 1.0.2

[ATAG]

WorksForMe?

I think, you are the only one, who can find some logic between versions of libs and px builds. We are mortals =)

Anyway i've tested same versions on x64 win7... but x86 doesn't work for me. Tomorrow i'll try on x32 machine too

[mars]

WorksForMe?

can you explain more in detail how you did it in windows 7 as we are still having problems