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TCP 的那些事儿（上） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...链接的3次握手，主要是要初始化Sequence Number 的初始值。通信的双方要互相通知对方自己的初始化的Sequence Number（缩写为ISN：Inital Sequence Number）——所以叫SYN，全称Synchronize Sequence Numbers。也就上图中的 x 和 y。这个号要作为以后...
port forwarding in windows
... NOTE that this only works on TCP, so no luck if you wanted to forward UDP traffic.
– user276648
Dec 13 '16 at 7:13
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Netflow record can't get octets (jnca)
...and Data Analyzer. In Netflow, router forwards details of network usage as UDP packets to a specified port of a destination.
Java NetFlow Collect-Analyzer
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How to stop and restart memcached server?
...rently runing:
sudo ps -e | grep memcached
And you can check the TCP or UDP ports if something (e.g. Memcache) is listening to it:
netstat -ap | grep TheChosenPort#
netstat -ap | grep 11211
For some Linuxes you need to change your commands like:
sudo /etc/init.d/memcached start
sudo /etc/init...
What browsers support HTML5 WebSocket API?
...Understands multiple network protocols out of the box including: TCP, SSL, UDP, HTTP, HTTPS, Websockets, SockJS as fallback for WebSockets
Pusher.com is a Websocket cloud service accessible through a REST API.
DotCloud cloud platform supports Websockets, and Java (Jetty Servlet Container), NodeJS...
How do I get current date/time on the Windows command line in a suitable format for usage in a file/
...al
:: Check if Windows is Windows XP and use Windows XP valid counter for UDP performance
::if defined USERDOMAIN_roamingprofile (set "v=v4") else (set "v=")
for /f "tokens=4 delims=. " %%# in ('ver') do if %%# GTR 5 (set "v=v4") else ("v=")
set "mon="
for /f "skip=2 delims=," %%# in ('typeperf "\...
WebSockets protocol vs HTTP
...f TCP. On the surface, QUIC is very similar to TCP+TLS+SPDY implemented on UDP. QUIC provides multiplexing and flow control equivalent to HTTP/2, security equivalent to TLS, and connection semantics, reliability, and congestion control equivalentto TCP. Because TCP is implemented in operating system...
Command line for looking at specific port
...nslated to service names.
-a will ensure you search all connections (TCP, UDP, listening...)
In the find string you must include the colon, as the port qualifier, otherwise the number may match either local or foreign addresses.
You can further narrow narrow the search using other netstat switche...
How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...l protocols and one for stateless protocols.
For a stateless protocol (ie UDP), there is no problem because "connections" don't exist - multiple people can send packets to the same port, and their packets will arrive in whatever sequence. Nobody is ever in the "connected" state.
For a stateful pr...
JMS Topic vs Queues
...uted computing. Some JMS providers efficiently choose to implement this as UDP instead of TCP. For topic's the message delivery is 'fire-and-forget' - if no one listens, the message just disappears. If that's not what you want, you can use 'durable subscriptions'.
A JMS queue is a 1-to-1 destinatio...