All Questions
16
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TCP Retransmission (TCP Port numbers reused) issues
I developed a web server and this is running on GKE.
Whenever I send any request to this server from my local pc, it occurs TCP retransmission.
Following is captured packets with Wireshark. The red ...
- 111
0
votes
1
answer
757
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Connecting to a home server on a cellular hotspot
I am seeking advice on a networking issue I have run into recently. I suspect that I a making an obvious mistake in my assumptions about connections between machines on separate networks.
My goal is ...
0
votes
1
answer
61
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Does HTTP as a protocol include any mechanism for guaranteeing information?
I asked this question on networkengineering.stackexchange, without realizing that any protocols on top of TCP were off topic (i.e. that only OSI layers 4 and lower are on topic there).
The question ...
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-1
votes
1
answer
71
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Wireshark - what happened?
This Wireshark issue has been driving my crazy for a few hours. What's happening here?
192.168.2.100 is an Apache server that is serving a static file.
192.168.2.196 is an embedded client ...
0
votes
1
answer
85
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HTTP Post: File upload occurring prior to HTTP POST
Note: My apologies if this is the wrong site for this topic. This question was directed to Super User from Network Engineering
I'm following along the UMass Wireshark Labs, in particular, the one on ...
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1
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73
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Can HTTP deliver video over the internet or is that TCP?
The post below talks about delivering video content to users via HTTP. Is it confusing it with the TCP protocol?
https://torrentfreak.com/torrents-time-brings-popcorn-time-to-any-windows-browser-...
user559328
0
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1
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2k
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Why a POST request uses the PSH flag in the first packet?
I'm trying to understand the behaviour of the POST HTTP Transaction. When there is a GET request with a long URI that needs more than one packet to be sent, the PSH flag is used in the last packet to ...
- 103
3
votes
2
answers
12k
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If HTTP runs on a port, does that mean TCP can also run on that port?
I'm building an app that needs to run on a mobile smartphone over a GPRS/3G network. I'm doing bit ops, so every byte wasted through HTTP headers is bad. Mobile providers in my area make heavy use of ...
- 147
3
votes
1
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have tcpdump show the 'conversation' as i would get from wireshark?
Is it possible to get the same output i would get from:
tcpdump port 80 -w log.pcap
wireshark log.pcap
in wireshark Analyze > Follow TCP Stream and then in the bottom drop down Entire ...
- 31
2
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1
answer
2k
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How does the browser know which packet is the response to a specific request?
I am sniffing the in/out packets over TCP. I have some GET output, but I want to know which of the packets is the input? How does the browser determine this?
Simpler explaination: I'm sniffing and I ...
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-1
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1
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370
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What happens if i send html over tcp without using the http protocol? [closed]
Will the html be delivered properly to the browser, or will it lack formatting? Will it get delivered at all?
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1
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3
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Is the following analogy to describe the relationship between TCP and HTTP correct?
TCP as a hose-pipe and HTTP as the water flowing through it
I've just been reading some, and trying to conceptualize the difference between TCP and HTTP. I stole the analogy from here http://wiki....
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0
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0
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405
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Windows 7 cannot connect to network shares, Exchange server, Webmail... anything requiring authentication
I have been handed this Asus Ultrabook that had Outlook 2010 that was not connecting to our Exchange server. It used to when in a different office.
On our office network, it can't. I have 36 other ...
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0
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2
answers
138
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http ftp imap smtp and some additional ports not working
I'm writing this using a 3G connection on my phone.
At lunch time yesterday, the ports above and a few additional other ports like 40001 and 4089 stopped working on my internet connection at work.
...
- 365
3
votes
1
answer
73
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DNSSEC regarding
I'm asking this question as software (and also because there have been a few DNSSEC questions on here in the past).
http://en.Wikipedia.org/wiki/DNS_cache_poisoning#Prevention_and_mitigation
I saw ...
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