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普通码农和CTO之间的差距，就是这7点了 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...议并不陌生，但是真的要讲给别人听怎么讲？HTTP协议和TCP协议什么关系？HTTP协议有那些支持的方法？什么是无状态？为什么设计成无状态？Session和Cookie是什么关系、什么样的工作原理？看似很简单的问题，其实蕴含着很多知识...
Is it possible to specify a different ssh port when using rsync?
...nt-files -e "ssh -p 2222" ./dir user@host/path
Rsync runs as a daemon on TCP port 873, which is not secure.
From Rsync man:
Push: rsync [OPTION...] SRC... [USER@]HOST:DEST
Which misleads people to try this:
rsync -rvz --progress --remove-sent-files ./dir user@host:2222/path
However, t...
How to use HttpWebRequest (.NET) asynchronously?
...ynchronous setup tasks to
complete (DNS resolution, proxy detection, and TCP socket connection,
for example) before this method becomes asynchronous. As a result,
this method should never be called on a user interface (UI) thread
because it might take considerable time (up to several minutes...
What is middleware exactly?
...retty much the same definition as an operating system. So, for instance, a TCP/IP stack or caching could be considered middleware. But your OS could provide the same features, too. Indeed, middleware can be thought of like a special extension to an operating system, specific to a set of applications...
apc vs eaccelerator vs xcache
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@Every FB try to hit a local APC cache before making a TCP/IP connection to memcached scribd.com/doc/4069180/…
– Andy
Mar 16 '10 at 9:37
1
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How to change port number for apache in WAMP
..., and 8008 as common alternative http ports. en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers
– L. L. Learner
Mar 11 '17 at 22:16
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How to construct a WebSocket URI relative to the page URI?
...
Here is my version which adds the tcp port in case it's not 80 or 443:
function url(s) {
var l = window.location;
return ((l.protocol === "https:") ? "wss://" : "ws://") + l.hostname + (((l.port != 80) && (l.port != 443)) ? ":" + l.port : "")...
Node.js EACCES error when listening on most ports
...s to make port redirection:
sudo iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 900 -j REDIRECT --to-port 3000
And run your server on >1024 port:
require('http').createServer().listen(3000);
ps the same could be done for https(443) port by the way.
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how to release localhost from Error: listen EADDRINUSE
... <port>
If the port is being held you'll see something like this:
tcp 0 0.0.0.0:<port> 0.0.0.* LISTEN <pid>/<parent>
Now kill by pid:
kill -9 <pid>
share...
PostgreSQL database default location on Linux
...ters" (data directories). Of course, each instance would listen on its own TCP/IP port.
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