Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [protocols]

30 questions
7
votes
1 answer

How to switch between TLS 1.0 and SSL 3.0 at Java/JRE level?

I am using java 1.6. I have setup my tomcat as my ssl enabled server. And i have setup a ssl enabled client (java code). When i do a communication from my client to server. In java ssl dump in tomcat logs, I always see TLSv1 picked as SSL protocol…
Anita
  • 79
  • 1
  • 1
  • 2
6
votes
3 answers

Should web farms be concerned with TLS handshake overhead

I have a web farm where the web servers are responsible for negotiating the secure connections. Does anyone else with a web farm go out of their way to reduce TLS handshake overhead by ensuring that TLS resume handshakes are supported? And if so,…
Brian Adams
  • 61
  • 1
5
votes
6 answers

TCP connection handshake

Why is in TCP a 3-way handshake used during establishing a connection? Meaning, why it is not enough to use a 2-way handshake?
Artem Barger
  • 267
  • 1
  • 4
  • 9
4
votes
2 answers

tcp syn checking

I have a WatchGuard Firebox that I've recently configured. All of the policies look fine and all appropriate services seem to be working correctly. However, one or two (seemingly) random nodes keep getting blocked from making HTTP requests to a 1:1…
Chris Tonkinson
  • 465
  • 2
  • 6
  • 18
3
votes
1 answer

what is the maximum http response latency?

I'm trying to figure out where to place servers that use HTTP calls to another server for retrieving results. I cannot seem to locate any definition of HTTP that defines the maximum response time although I have a vague recollection of 1800ms. Does…
Jim B
  • 23,938
  • 4
  • 35
  • 58
3
votes
2 answers

Why is there an EtherType for SNMP?

Today I was reading through some documentation about the fundamentals of networks (IP, Ethernet, MPLS, ...). And while looking at the Ethernet Types that can be used in the Ethernet Frame I saw there was an Ethertype for Simple Network Management…
Christophe Lambrechts
  • 133
  • 2
3
votes
3 answers

Layer 3 Protocol only in wireshark

I have a simple question: is there any way in wireshark to avoid resolution of protocol besides the protocol of layer 3 ? For example, in the column protocol, instead of showing http, I want it to show TCP or it's value (6). I can see in menu…
javardo
  • 31
  • 1
  • 2
3
votes
2 answers

How are CIFS and SMB related to each other?

Are they synonyms, or components of a protocol stack? Answers with proof links are welcome.
yrk
  • 2,347
  • 16
  • 22
3
votes
2 answers

Using self signed SSL for mail

Rather than purchasing SSL I would create a SSL certificate. Of course my SSL certificate will not be useful that browsers show "Un-trusted SSL". Can I use Self Signed SSL to my mail server to send and receive emails? By using self signed SSL do it…
Karthik Malla
  • 103
  • 4
2
votes
1 answer

The greeting from an IMAP server — format?

I'm trying to understand the specification of IMAP found at INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1 (RFC3501) Does the greeting from a server always have the following format? * OK something doesn't matter what That is, does it start with…
Oskar K.
  • 167
  • 1
  • 7
2
votes
1 answer

git clone ssh syntax difference?

Setup There is a host (H1) running gitlab-ce git server within a docker container (C1). The host's OpenSSH server runs on port 22 and provides a host key keyH. The gitlab container provides its own SSH service that is published to host like 10022:22…
ITL
  • 231
  • 3
  • 9
2
votes
3 answers

Ethernet: network topology

Consider a standard GigE network switch. In order to do the switching, presumably it needs to maintain a map of MAC addresses of all things that exist on the network to its (switch's) port numbers. How does it maintain such a map? What are the…
NPE
  • 669
  • 3
  • 9
  • 19
2
votes
2 answers

RADIUS Protocol - Sending more than 255 bytes in vendor-specific field

I am using the RADIUS protocol to for sending some values from client to server. I am using vendor specific value pairs, and defining our own types. But the value length for Vendor-specific data is 255 and our data length is crossing it. Can any one…
Vijay.J055
  • 31
  • 2
2
votes
5 answers

Server Room Protocols/Server Room Management

I'm new to this site but have found the articles and feedback very useful. We have a Server Room which our Organisation owns and controls, yet there are several thirs party companies that have open access to this room. As such, we have been asked…
Matthew E
  • 21
  • 2
1
vote
1 answer

Does Microsoft Azure blob storage allow BitTorrent uploads?

Amazon S3 buckets can be uploaded (and downloaded) using the BitTorrent protocol. Can this be done with Azure blob storage? I can't find an answer for this on google. Alot of hits are for the Azure bittorrent client and not Azure the cloud host.
NoWhereToBeSeen
  • 143
  • 2
1
2