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Linux升级OpenSSL的方法 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...ssl' #ubuntu 和debian可以用
2、升级openssl版本:
yum clean all && yum update "openssl*" #redhat系列用这个
apt-get update && apt-get upgrade #ubuntu和debian可以用
zypper update #OpenSuSE可以用
参考:https://www.jb51.net/LINUXjishu/348267.html
openssl
Linux上安装dtrace(劝退篇) - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...机(在Debian要求了, 但是Fedora下不需要). 接着执行:
$ make all
$ make install
$ make load (need to be root or have sudo access)
至此大功告成, 有关dtrace的使用之后再总结吧. 希望对大家有所帮助.
附上一个手册: dtrace user guide
后记
折腾了半天...
Passing a single item as IEnumerable
... well if the list/array is built ad-hoc, its scope ends after the method call, so it shouldn't cause problems
– Mario F
Oct 16 '09 at 12:55
...
Prevent onmouseout when hovering child element of the parent absolute div WITHOUT jQuery
...Listener('mouseout',onMouseOut,true);
I made a quick JsFiddle demo, with all the CSS and HTML needed, check it out...
EDIT FIXED link for cross-browser support http://jsfiddle.net/RH3tA/9/
NOTE that this only checks the immediate parent, if the parent div had nested children then you have to s...
tcp端口状态ESTABLISHED、TIME_WAIT、CLOSE_WAIT 、SYN_RECV等详解 - C/C++...
tcp端口状态ESTABLISHED、TIME_WAIT、CLOSE_WAIT 、SYN_RECV等详解TCP状态转移要点TCP协议规定,对于已经建立的连接,网络双方要进行四次握手才能成功断开连接,如果缺少了其中某个步骤,将会使连接处于假死 TCP状态转移要点
TCP协议...
Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...项
2.1. awk的语法有两种形式
awk [options] 'script' var=value file(s)
awk [options] -f scriptfile var=value file(s)
2.2. 命令选项
-F fs or --field-separator fs
指定输入文件折分隔符,fs是一个字符串或者是一...
Environment variables in Mac OS X
...:want
launchctl setenv PATH $PATH
Environment variables are not automatically updated in running applications. You will need to relaunch applications to get the updated environment variables (although you can just set variables in your shell, e.g. PATH=whatever:you:want; there's no need to relaunc...
Error: CUICatalog: Invalid asset name supplied: (null), or invalid scale factor : 2.000000
...
This error (usually) happens when you try to load an image with [UIImage imageNamed:myImage] but iOS is not sure if myImage is really a NSString and then you have this warning.
You can fix this using:
[UIImage imageNamed:[NSString stringW...
How to extract one column of a csv file
If I have a csv file, is there a quick bash way to print out the contents of only any single column? It is safe to assume that each row has the same number of columns, but each column's content would have different length.
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Where does Visual Studio look for C++ header files?
I checked out a copy of a C++ application from SourceForge (HoboCopy, if you're curious) and tried to compile it.
6 Answers...
