Questions tagged [protocols]
32 questions
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3 answers
Bug with TLS 1.2 in Internet Explorer 11 / Windows 7?
I am running some small websites which are served by Apache / Linux. Currently, I am trying to cut down the SSL configuration as far as possible to make it as secure as possible.
I have configured Apache so that it only allows TLS 1.2 and only…
Binarus
1
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1 answer
Protocol moves to another ethx Suse
I have a server which has 2 nics eth0 and eth1
eth0 is used for our email traffic server. everything working fine
some time later a eth1 was added for backup purposes so this new nic sends data to another vlan for backup purposes
all of a sudden our…
karlochacon
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3 answers
Understanding VOIP "sniffer" traces
My customer is doing an Avaya VOIP pilot. I am looking at traces in Wireshark to build my troubleshooting skills. I have found much documentation on VOIP, but little that focuses on protocol analysis and how the various protocols work together.
I…
jpolache
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1 answer
TCP congestion avoidance (need for clarification)
I've just some question regarding TCP congestion avoidance algorithm.
First of all I'm looking for explanation of, why the part of congestion avoidance algorithm is called "fast recovery"? I mean I cannot find any good reason for it, seems like it…
Artem Barger
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2 answers
What is Reverse Gossip Transfer Protocol?
Playing with wireshark, I see a bunch of packets that say something like
rgtp > https [ACK] Seq=???? Ack=?????? Win=????? Len=0
What is a Reverse Gossip Ttransfer Protocol? What is it used for, and by whom?
p.s. Google takes me to…
Everyone
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1 answer
Which is a faster USB protocol RS232 or PS/2
A manufacture just asked me
For the USB interface , we have two communication protocols , one is USB to RS232 , one is USB to PS/2 .
Which one is faster? This is a USB Devise.
user29266
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3 answers
DVMRP vs PIM-DM multicast protocols
Recently I've started to read RFCs of different multicast standards and came out to the question, which is not totally clear for me. I'm trying to compare DVMRP vs PIM-DM routing protocols in order to understand which one is better, which one…
Artem Barger
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1 answer
What information do I need for initial setup of BGP?
I will be installing a MikroTik BGP capable router into a datacentre tomorrow, I have almost no idea how to do this but luckily there is an identical mikrotik router that has already been setup and is sitting next to it on a different connection…
SuperDuperAirVent
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4 answers
What uncommon services/protocols are out there?
This is a wiki for uncommon services that can be hosted on a server. I'd interested in anything which is less common whether it's due to obsolence (eg: gopher protocol), or newness (eg: Podcast Producer service), or just limited user base.
username
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How many bits for sequence number using Go-Back-N protocol
I'm a regular over at Stack Overflow (Software developer) that is trying to get through a networking course. I got a homework problem I'd like to have a sanity check on. Here is what I got.
Q:
A 3000-km-long T1 trunk is used to transmit 64-byte…
Mike
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0 answers
HTTP/2 Not working for my resources
I am using Google Cloud Compute Engine running Apache 2.
I enabled HTTP2
sudo a2enmod http2
I added this to the top of my default-ssl.conf and made it global.
Protocols h2 h2c http/1.1
The default-ssl.conf runs properly with all my other commands…
Maciek Semik
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0
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2 answers
What other protocols must not be fire-walled for FTP to work?
My Netgear router randomly reset itself the other day loosing all of my config settings: DSL details, Firewall rules, the lot!
So I set about restoring all of the details manually, but when it came to configuring the firewall I wanted improve the…
Chris
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Massive issues with throughput from some client systems, but not when additionally using a VPN
I occasionally experience massive performance issues accessing one of my systems via network (internet). I tried to narrow down the cause of the issue, actually made some progress, but I fail to proceed since I simply do not have much knowledge…
arkascha
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1 answer
Figures on data usage through various Internet protocols?
Given this list of protocols used by the internet does anyone know any way of getting information on the amount of data (or any other usage metrics) for various ones?
Steerpike
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Why bittorent needs many ports
Why bittorrent needs as many ports?..Why not just one-2? I know that some of them are used for peer discovery, but dont exactly know how is this happening. Can you please provide more technical information about how bittorent works(deeper than its…
0x49D1
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