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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...
Select2 doesn't work when embedded in a bootstrap modal
... @DrewInTheMountains I also had issues setting the dropdownParent to the root of the modal, it's indeed better to choose the body, otherwise you get really bad positioning bugs when scrolling. I set mine to the div with class modal-content and it works like a charm!
– Shahin ...
How do I know the script file name in a Bash script?
...d single quotes, since it contains two words
$ /misc/shell_scripts/check_root/show_parms.sh "'hello there'" "'william'"
# ------------- RESULTS ------------- #
# arguments called with ---> 'hello there' 'william'
# $1 ----------------------> 'hello there'
# $2 ----------------------> ...
通信连接组件 · App Inventor 2 中文网
...
更多有关Activity启动器使用技巧请查看《Activity启动器如何查看并启动其他App》。
属性
Action
指定将用于启动Activity活动的操作。
Activity类名
指定将启动的特定组件的Class类部分。
Activity包名
指定将启动的特定组件...
nvm keeps “forgetting” node in new terminal session
...This loads nvm
# Some other program adding to the PATH:
export PATH="$ANT_ROOT:$PATH"
Solution:
### GOOD .bashrc ###
# Some other program adding to the PATH:
export PATH="$ANT_ROOT:$PATH"
# NVM initialisation
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" ...
Difference between app.all('*') and app.use('/')
... thanks but I think you missed the app.all wildcard and app.use root path which make them pretty much exactly the same thing don't they? Except that app.all can take an array of callbacks and app.use can only take one - right?
– ostergaard
Jan 2 '13 ...
Duplicate log output when using Python logging module
...tetime.datetime.now()
handler = logging.FileHandler(
'/root/credentials/Logs/ProvisioningPython'
+ now.strftime("%Y-%m-%d")
+ '.log')
formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s')
handler.setFormatter(formatter)
...
How to kill a process running on particular port in Linux?
...
You might want to add that one might need root privilegues to get process names via netstat.
– Jonas Schäfer
Jul 20 '12 at 16:46
2
...
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
...
How to use NSJSONSerialization
...
Your root json object is not a dictionary but an array:
[{"id": "1", "name":"Aaa"}, {"id": "2", "name":"Bbb"}]
This might give you a clear picture of how to handle it:
NSError *e = nil;
NSArray *jsonArray = [NSJSONSerializatio...