Difference between revisions of "Blacklist or whitelist"

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It's very easy to manage both list with these Asterisk CLI commands:
 
It's very easy to manage both list with these Asterisk CLI commands:
* database put blacklist 1998 "any comment"
+
* Blacklist
* database del blacklist 1998
+
** database put blacklist 1998 "any comment"
* database show blacklist
+
** database del blacklist 1998
* database put whitelist 1000 "any comment"
+
** database show blacklist
* database del whitelist 1000
+
* Whitelist
* database show whitelist
+
** database put whitelist 1000 "any comment"
* database show
+
** database del whitelist 1000
 +
** database show whitelist
 +
*Both
 +
** database show
  
 
==Blacklist Configuration==
 
==Blacklist Configuration==

Revision as of 19:57, 15 October 2017

Occasionally it becomes necessary to limit connections to your node. The blacklist is used block a poorly operating node or small number of nodes. The whitelist allows only listed notes to connect.

It's very easy to manage both list with these Asterisk CLI commands:

  • Blacklist
    • database put blacklist 1998 "any comment"
    • database del blacklist 1998
    • database show blacklist
  • Whitelist
    • database put whitelist 1000 "any comment"
    • database del whitelist 1000
    • database show whitelist
  • Both
    • database show

Blacklist Configuration

Add this to extensions.conf just below the [radio-secure] context.

[radio-secure]
...

; To add a node to the blacklist: 
; database put blacklist 1998 “any comment”
; to remove:
; database del blacklist 1998
; to list
; database show blacklist
 
[blacklist]
exten => _XXXX!,1,NoOp(${CALLERID(num)})
exten => _XXXX!,n,GotoIf($[${DB_EXISTS(blacklist/${CALLERID(num)})}]?blocked)
exten => _XXXX!,n,Goto(radio-secure,${EXTEN},1)
exten => _XXXX!,n(blocked),Hangup

[whitelist]
exten => _XXXX!,1,NoOp(${CALLERID(num)})
exten => _XXXX!,n,NoOp(${IAXPEER(CURRENTCHANNEL)})
exten => _XXXX!,n,GotoIf($["${IAXPEER(CURRENTCHANNEL)}" = "127.0.0.1"]?radio-secure,${EXTEN},1)  ;permit local IPs
exten => _XXXX!,n,GotoIf($[${DB_EXISTS(whitelist/${CALLERID(num)})}]?radio-secure,${EXTEN},1)
exten => _XXXX!,n,Hangup

In iax.conf modify the [radio] context by adding and/or commenting context = lines.

[radio]
type = user
disallow = all
allow = ulaw
allow = adpcm
allow = gsm
codecpriority = host
;context = radio-secure
;context = whitelist
context = blacklist
transfer = no

Notes: Neither list blocks outbound connections. Both lists cannot be used at the same time and apply to all nodes on the server.