---
summary: Ability to blacklist IPs from connecting to a server at all
---
created: 2014-09-23 11:29:56.0
creator: matthew
description: |-
  As a security feature, we need the equivalent of an IRC K-line - specifying what IP netmasks aren't allowed to connect to a given HS at all.

  This would only be settable by a server admin - so we need that concept too.
id: '10374'
key: SYN-63
number: '63'
priority: '2'
project: '10000'
reporter: matthew
status: '10200'
type: '2'
updated: 2016-11-07 18:27:16.0
votes: '0'
watches: '3'
workflowId: '10477'
---
actions:
- author: xena
  body: This should also have some way of having a ban history, even after a ban expires.
  created: 2015-12-09 17:26:24.0
  id: '12451'
  issue: '10374'
  type: comment
  updateauthor: xena
  updated: 2015-12-09 17:26:24.0
- author: richvdh
  body: 'Migrated to github: https://github.com/matrix-org/synapse/issues/1217'
  created: 2016-11-07 18:27:16.0
  id: '13545'
  issue: '10374'
  type: comment
  updateauthor: richvdh
  updated: 2016-11-07 18:27:16.0