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Can two applications listen to the same port?
... differs depending on what OS is being considered. In general though:
For TCP, no. You can only have one application listening on the same port at one time. Now if you had 2 network cards, you could have one application listen on the first IP and the second one on the second IP using the same port ...
Using awk to remove the Byte-order mark
...t not UTF-16 files without a BOM) to UTF-8 without a BOM:
$ printf '\ufeffä\n'|iconv -f utf-8 -t utf-16be>bom-utf16be
$ printf '\ufeffä\n'|iconv -f utf-8 -t utf-16le>bom-utf16le
$ printf '\ufeffä\n'>bom-utf8
$ printf 'ä\n'|iconv -f utf-8 -t utf-16be>utf16be
$ printf 'ä\n'|iconv -f ...
CDN（内容分发网络）技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...于缓存服务器通常部署在靠近用户端，所以能获得近似局域网的响应速度，并有效减少广域带宽的消耗。据统计，Internet上超过80%的用户重复访问20%的信息资源，给缓存技术的应用提供了先决的条件。缓存服务器的体系结构与Web...
Regex to match only letters
...r letters than A–Z, you can either add them to the character set: [a-zA-ZäöüßÄÖÜ]. Or you use predefined character classes like the Unicode character property class \p{L} that describes the Unicode characters that are letters.
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When is TCP option SO_LINGER (0) required?
...TIME_WAIT state, tying up all the available resources on a server.
When a TCP connection is closed cleanly, the end that initiated the close ("active close") ends up with the connection sitting in TIME_WAIT for several minutes. So if your protocol is one where the server initiates the connection c...
Why is SCTP not much used/known
...Stevens and I found that there is a third transport layer standard besides TCP and UDP: SCTP .
11 Answers
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How to escape double quotes in a title attribute
...
&#177 | plus or minus sign ±
&#179 | superscript 3 ³
&#187 | double greater-than sign »
&#189 | fraction 1/2 ½
&#191 | inverted question mark ¿
&#8220 | left double quote “
&#8212 | dash —
...
What is the theoretical maximum number of open TCP connections that a modern Linux box can have
...ng infinite performance from hardware, can a Linux box support >65536 open TCP connections?
3 Answers
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CGRidCtrl控件 学习心得 - C/C++ - 清泛网 - 专注C/C++及内核技术
...，Ctrl-A全选
u 当单元格成为焦点，并且在单元格的编辑区域按下字符键，就意味着在
那个单元格进行编辑了
u 可以在单元格中加入图片
u 对大型数据可以使用"虚拟"模式
u 充分的打印支持，支持文档/浏览环境（包括打印...
How many spaces will Java String.trim() remove?
...red Feb 4 '10 at 10:31
Juha SyrjäläJuha Syrjälä
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