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June, 2012
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June, 2012
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HTTPS access through TMG fails from a certain VLAN with a very unusual error: FWX_E_SEQ_ACK_MISMATCH
Posted
over 2 years ago
by
MuratKa1
3
Comments
In this blog post, I’ll be talking about an interesting problem that I dealt with recently. The problem was that clients running in a certain VLAN were not able to establish HTTPS connections through TMG server. Due to the nature of the network...
Network traffic capturing hints
Posted
over 2 years ago
by
MuratKa1
1
Comment
In this post, I would like to talk about some important points about network capturing. If a network trace is not collected appropriately, it won’t provide any useful information and it will be a waste of time analyzing such a network trace. ...
Network trace analysis tricks I - How can I see all TCP connection attempts in a network trace?
Posted
over 2 years ago
by
MuratKa1
1
Comment
In the “network analysis tricks” series of posts, I’ll try to explain some techniques that I use when analyzing network traces. In this first post, I would like to explain how I find all TCP connection attempts in a network trace...
Network trace analysis tricks II - How can I focus on a certain packet range in a network trace?
Posted
over 2 years ago
by
MuratKa1
In the second post of “network analysis tricks” series, I’ll explain how to focus on a certain range of packets in a network trace. When I ask for a network trace from a customer, I almost always ask for ICMP markers before and...
When do we need to collect network traces?
Posted
over 2 years ago
by
MuratKa1
Many Microsoft support engineers dealing with customer technical issues ask for network traces to further troubleshoot and isolate a given problem. In this post I wanted to give you an idea about when we generally ask for a network trace so that you might...
Outlook anywhere (RPC over HTTPS) access to Exchange 2010 server via TMG 2010 fails after some time
Posted
over 2 years ago
by
MuratKa1
In this blog post, I’ll be discussing an Exchange 2010 publishing on TMG 2010 issue. The problem was that after sometime Outlook clients were failing to access to Exchange 2010 server via RPC over HTTPS. There may be many different reasons...