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Jul
3
awarded  Popular Question
Mar
24
comment Any suggestions on why DNS is failing over DrayTek 2820?
Hmm.. will try this one out - thanks for the suggestion
Dec
22
comment Any suggestions on why DNS is failing over DrayTek 2820?
Trying telnet to 8.8.8.8 53 i get blank screen and pressing a key exits. This is the same whether connected or not. If I telnet to 141.1.1.1 53 it stays connected. Sounds like Thus is blocking DNS traffic that goes outside its network?
Dec
22
comment Any suggestions on why DNS is failing over DrayTek 2820?
Thx @CharlesH, I'll try that as well next time it goes off. It's working at present.
Dec
22
comment Any suggestions on why DNS is failing over DrayTek 2820?
@ChristopherPerrin Hi, yes we updated with latest firmware as a precaution, no change. Thx
Dec
22
comment Any suggestions on why DNS is failing over DrayTek 2820?
@CharlesH I tested setting DNS locally, but it cannot 'see' the DNS server (or the traffic is blocked/lost) so has no effect.
Dec
22
asked Any suggestions on why DNS is failing over DrayTek 2820?
Sep
24
awarded  Autobiographer
Jul
2
awarded  Curious
Dec
30
comment Enterprise voice with Office 365 plans and Lync 2013
Thanks for clarifying those points: it's quite a complicated product!
Dec
30
accepted Enterprise voice with Office 365 plans and Lync 2013
Dec
24
comment Enterprise voice with Office 365 plans and Lync 2013
This is about functionality not licencing
Dec
24
asked Enterprise voice with Office 365 plans and Lync 2013
Nov
22
accepted Does DFSR include RDC on Windows Server 2008?
Nov
22
comment Does DFSR include RDC on Windows Server 2008?
Thanks - so as I read that, RDC will only be used if the RDC feature is installed and configured. We use DFSR for backup to remote sites so we definitely want that.
Nov
21
asked Does DFSR include RDC on Windows Server 2008?
Jul
17
accepted Is this a DNS vulnerability or exploit?
Jul
17
comment Is this a DNS vulnerability or exploit?
Thanks for the suggestion - given the traffic volume this sounds like it might be what is going on - we had forwarders set up to redirect DNS queries externally and it may be they are using this. As DNS on these servers is for internal use we are blocking the AD ports. Port 53 wasn't open.
Jul
17
comment Is this a DNS vulnerability or exploit?
The 10MB/sec was from the Resource Monitor / Network Activity list (not in the image I captured alas.. didn't want to leave it up longer than I had to).
Jul
17
comment Is this a DNS vulnerability or exploit?
It's not a big zone - we have two sites, about five servers, five users on Active Directory. That's what makes me very suspicious. I didn't try sniffing the packets, I just turned it off, fast, in case it was a vulnerability.