Showing posts with label snmp. Show all posts
Showing posts with label snmp. Show all posts

Friday, July 26, 2019

GNU Gatekeeper 5.3 released

I have just released GNU Gatekeeper version 5.3.

You can download it from https://www.gnugk.org/h323download.html

This release has a number of new features as well as some important bug
fixes.

Whats new ?

  • LRQ loop detection to optimize calls flows between multiple neighbor gatekeepers This new feature has the potential to significantly reduce the load on all gatekeepers and prevent "LRQ storms".
  • new routing policy to set call destinations by querying HTTP or REST servers, see [Routing::Http]
  • much improved support for SNMP
  • important bug fix for TLS encryption of signaling channels
  • important bug fixes for H.460.18 NAT traversal (for H.245 tunneling and for multi-homed servers)
  • performance optimization: this version can handle 5-10% more proxied  calls on the same hardware
  • performance optimization: re-authenticate lightweight, additive registrations only when new aliases differ. This significantly reduces the load on password databases.

Enjoy!


Full change log:

- BUGFIX(ProxyChannel.cxx) don't send H.245 address to tunneling
  H.460.18 endpoint, breaks call when H.245 multiplexing
- performance optimization: 5% faster UDP handling
- changed default: [SNMP] Implementation=PTlib
- remove unfinished Windows-SNMP implementation, use PTLib-SNMP on Windows
- support SET and GET-NEXT in PTLib-SNMP
- support SNMP sysUpTime when running as standalone agent
- BUGFIX(configure.in) LARGE_FDSET defaults to off
- new SNMP OID 1.3.6.1.4.1.27938.11.1.9 to query total bandwidth allocated to ongoing calls
- BUGFIX(ProxyChannel.cxx) fix hangup when making many TLS calls quickly one after another
- BUGFIX(RasSrv.cxx) don't require H.460.22 parameters in ARQs
- BUGFIX(ProxyChannel.cxx) fix TLS without LARGE_FDSET
- BUGFIX(ProxyChannel.cxx) don't send H.460.22 priority field in SCI
- BUGFIX(gkauth.cxx) free memory from cached and expired passwords
- re-authenticate lightweight, additive registrations only when new aliases differ
- remove switch [Proxy]DisableRTPQueueing, always disabled now
- new routing policy: http with config section [Routing::Http]
- BUGFIX(ProxyChannel.cxx) fix H.460.18 on multi-homed servers (SCI comes from the correct IP now)
- new switch to disable SNMP traps [SNMP] EnableTraps=0
- BUGFIX(ProxyChannel.cxx) don't throw SNMP trap on H.245 connection errors
  (causes crash under load with Net-SNMP)
- BUGFIX(snmp.cxx) shutdown GnuGk when SNMP agent can't be started
- BUGFIX(snmp.cxx) protect NetSNMP library calls with mutex
- changed default: ForwardResponse now defaults to 1 in [RasSrv::LRQFeatures] and [Neighbor::...]
- new feature: loop detection for LRQs [RasSrv::LRQFeatures] LoopDetection=1
- BUGFIX(Neighbor.cxx) some settings in [RasSrv::LRQFeatures] were ignored if not set in [Neighbor::...]

Wednesday, June 25, 2014

Monitoring the GNU Gatekeeper

When you run GnuGk in production, it is important to integrate it into your overall network monitoring to ensure its always running and to see the current throughput.

Your choices are basically
  • SNMP
  • custom plugins that connect to GnuGk's status port

For Nagois or Icinga its probably best to use GnuGk's SNMP support.

On the website there are also a few a few sample plugins for OpenSource Monitoring tools that don't support SNMP so well.