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9个常用iptables配置实例 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...-j ACCEPT
类似的，对于HTTP/HTTPS(80/443)、pop3(110)、rsync(873)、MySQL(3306)等基于tcp连接的服务，也可以参照上述命令配置。
对于基于udp的dns服务，使用以下命令开启端口服务：
iptables -A OUTPUT -p udp -o eth0 --dport 53 -j ACCEPT
iptables -A IN...
Choosing a file in Python with simple Dialog
...t askopenfilename
Tk().withdraw() # we don't want a full GUI, so keep the root window from appearing
filename = askopenfilename() # show an "Open" dialog box and return the path to the selected file
print(filename)
Done!
s...
Recursively list files in Java
...ic class Filewalker {
public void walk( String path ) {
File root = new File( path );
File[] list = root.listFiles();
if (list == null) return;
for ( File f : list ) {
if ( f.isDirectory() ) {
walk( f.getAbsolutePath() );
...
.gitignore all the .DS_Store files in every folder and subfolder
...he .gitignore file, but it seems that it is only ignoring .DS_Store in the root directory, not in every folder and subfolder.
...
Adding a new SQL column with a default value
I am looking for the syntax to add a column to a MySQL database with a default value of 0
10 Answers
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Are multiple `.gitignore`s frowned on?
...s, it seems it would be simplest to just have one .gitignore file at the root of the repo than various ones throughout. Is there a standard best practice on this or some analysis online of when one approach is better than the other?
...
“Insufficient Storage Available” even there is lot of free space in device memory
...o the same thing if you get the "invalid MMI" error when you try this on a rooted, modded phone.
– ChrisC
Nov 14 '13 at 1:52
3
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Wrong Manifest.mf in IntelliJ IDEA created .jar
... This was not working for me, I had to move the Mainfest file to the root of the project.
– racs
Jan 13 '16 at 20:57
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驯服Linux OOM Killer（优质英文资料翻译） - 操作系统(内核) - 清泛网移动...
...要操作。在这样的情况下，
用户和系统管理员经常询问如何控制 OOM Killer的行为。为了方便控制，引入了 /proc/ <pid> /oom_adj旋钮，以防止系统中的重要进程被杀死，并定义要杀死的进程的顺序。oom_adj的可能值范围从 -17 到 +15...
Update multiple columns in SQL
...
Works on MySQL.
– João Farias
Dec 16 '16 at 19:44
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