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How should one go about choosing a default TCP/IP port for a new service?
When developing an app that will listen on a TCP/IP port, how should one go about selecting a default port? Assume that this app will be installed on many computers, and that avoiding port conflicts is desired.
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How to grant remote access permissions to mysql server for user?
...S;
If name resolution is not going to work, you may also grant access by IP or subnet:
GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.1.%'
IDENTIFIED BY 'some_characters'
WITH GRANT OPTION;
FLUSH PRIVILEGES;
MySQL GRANT syntax docs.
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What's wrong with Groovy multi-line String?
...two try to make "test" positive (and this is where it fails)
With the new String constructor method, the Groovy parser is still in the constructor (as the brace hasn't yet closed), so it can logically join the three lines together into a single statement
For true multi-line Strings, you can also u...
What is a web service endpoint?
...- variables - ex: myVar, x, y, etc.
Types - data types - ex: int, double, String, myObjectType
Operations - methods/functions - ex: myMethod(), myFunction(), etc.
Messages - method/function input parameters & return types
ex: public myObjectType myMethod(String myVar)
Porttypes - classes ...
Writing a compiler in its own language
... assembler. Eventually, you will come to the place where you have to parse strings, specifically escape sequences. You will write code to convert \n to the character with the decimal code 10 (and \r to 13, etc).
After that compiler is ready, you will start to reimplement it in C. This process is ca...
Why is MySQL's default collation latin1_swedish_ci?
...general_ci.
Compared to latin1_general_ci it has support for a variety of extra characters used in European languages. So it’s a best choice if you don’t know what language you will be using, if you are constrained to use only single byte character sets.
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Perform commands over ssh with Python
I'm writing a script to automate some command line commands in Python. At the moment I'm doing calls thus:
13 Answers
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汇编常用寄存器及指令基础总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...）：数据段寄存器
SS（Stack Segment）：堆栈段寄存器
ES（Extra Segment）：附加段寄存器
特殊功能的寄存器：
IP（Intruction Pointer）：指令指针寄存器，与CS配合使用，可跟踪程序的执行过程
SP（Stack Pointer）：堆栈指针，与SS配...
How do I set up DNS for an apex domain (no www) pointing to a Heroku app?
... to point your apex domain you'd use an A record pointing to your server's IP. This solution doesn't scale and isn't viable for a cloud platform like Heroku, where multiple and frequently changing backends are responsible for responding to requests.
For subdomains (like www.example.com) you can use...
Freeing up a TCP/IP port?
...number' | grep LISTEN
Sample Response :
java 4744 (PID) test 364u IP0 asdasdasda 0t0 TCP *:port-number (LISTEN)
and then execute :
kill -9 PID
Worked on Macbook
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