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by jaymemaurice
Thu Apr 18, 2019 4:38 am
Forum: Virtualization
Topic: CHR poor/inconsistent VMware ESXi performance?
Replies: 0
Views: 1079

CHR poor/inconsistent VMware ESXi performance?

I'm using an Ixia traffic generator on an ample host with x710 (i40e) NICs testing a CHR p-unlimited vm using RFC 2544 methodology. I am trying to build systems that can forward 64-byte packets @>1.5Gbps unidirectional without loss using less than 8 virtual CPUs on the same NUMA node. The same host ...
by jaymemaurice
Wed Apr 11, 2018 11:51 pm
Forum: General
Topic: CloudFlare DNS over TLS
Replies: 41
Views: 24120

Re: CloudFlare DNS over TLS

You should understand that encrypting your DNS for the sole purpose of "websurfing" does not yield any privacy because the ISP can still look into the https session startups and see the SNI (which was added to allow https on shared hosting). So when you really want privacy, you need to tunnel all y...
by jaymemaurice
Fri Oct 04, 2013 5:45 am
Forum: Forwarding Protocols
Topic: dst-nat UDP 500 to another host - packet does not match rule
Replies: 1
Views: 1028

Re: dst-nat UDP 500 to another host - packet does not match

Ahhhh nvrm it seems it's working after upgrading to 6.4
by jaymemaurice
Fri Oct 04, 2013 5:29 am
Forum: Forwarding Protocols
Topic: dst-nat UDP 500 to another host - packet does not match rule
Replies: 1
Views: 1028

dst-nat UDP 500 to another host - packet does not match rule

Hey guys, it seems like a simple rule to dst-nat UDP 500 traffic does not work. I can dst-nat udp 161 no problem, but when I change the rule to 500 and send a UDP packet, the packet just seems to get absorbed by the router. Packet captures show the UDP 500 packet come in to the public interface but ...
by jaymemaurice
Thu May 19, 2011 9:44 am
Forum: General
Topic: TCP window scaling for shaping downloads
Replies: 6
Views: 3096

Re: TCP window scaling for shaping downloads

I think you might have mis-understood what I think he might have wanted. If the client and server support TCP window scaling, there will be a window scaling factor as a TCP option. Re-writing it could effectively shape a client using its own slow start algorithm or one can completely break it. Remov...