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linux下iptables配置详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...-p tcp --dport 21 -j ACCEPT
[root@tp ~]# iptables -A INPUT -p tcp --dport 20 -j ACCEPT
如果做了DNS服务器,开启53端口
[root@tp ~]# iptables -A INPUT -p tcp --dport 53 -j ACCEPT
如果你还做了其他的服务器,需要开启哪个端口,照写就行了.
上面主要写的都是INPUT...
What is a stored procedure?
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edited Feb 15 '18 at 20:02
community wiki
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How to get div height to auto-adjust to background size?
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FYI to those who are wondering, the padding-top doesn't create a white space because it just adds height to the element. The image is a bac...
Is there a difference between “throw” and “throw ex”?
...avell
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Streaming via RTSP or RTP in HTML5
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Nov 15 '09 at 9:21
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IISExpress Log File Location
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VS2019 has changed this and defaults to disabled in the .vs\<app>\config\applicationhost.config file. The path is now %AppData%\Microsoft\IISExpressLogs" for w3c logs and "%AppData%\Microsoft" for tracelogs.
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How do you calculate log base 2 in Java for integers?
...t;> 1 );
}
It is slightly faster than Integer.numberOfLeadingZeros() (20-30%) and almost 10 times faster (jdk 1.6 x64) than a Math.log() based implementation like this one:
private static final double log2div = 1.000000000001 / Math.log( 2 );
public static int log2fp0( int bits )
{
if( bit...
In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?
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edited Jun 20 '19 at 7:35
Dave F
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answered May 18 ...
Getting pids from ps -ef |grep keyword
... -9 to the end
– patte
Feb 5 '17 at 20:45
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Maven in Eclipse: step by step installation [closed]
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(Edit 2016-10-12: Many Eclipse downloads from https://eclipse.org/downloads/eclipse-packages/ have M2Eclipse included already. As of Neon both the Java and the Java EE packages do - look for "Maven support")
Way 1: Maven Eclipse ...