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Increasing the maximum number of TCP/IP connections in Linux
...n's capability, bump it up from default 128 to something like 128 to 1024. Now you can take advantage of this increase by modifying the listen backlog variable in your application's listen call, to an equal or higher integer.
sysctl net.core.somaxconn=1024
txqueuelen parameter of your ethernet ca...
what exactly is device pixel ratio?
this is mentioned every article about mobile web, but nowhere I can found an explanation of what exactly does this attribute measure.
Can anyone please elaborate what does queries like this check?
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SQL injection that gets around mysql_real_escape_string()
...5.6 by default: big5, cp932, gb2312, gbk and sjis. We'll select gbk here.
Now, it's very important to note the use of SET NAMES here. This sets the character set ON THE SERVER. If we used the call to the C API function mysql_set_charset(), we'd be fine (on MySQL releases since 2006). But more on wh...
How to exit an if clause
...hemient: Ah, didn't notice the link. Figured it was code highlighting. But now that I look at your code, I don't see any real highlighting going on..
– Roman
Jan 15 '10 at 5:55
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Extracting the last n characters from a string in R
...r had been remade using stringi as a backend, so should work with NAs etc. now.
– m-dz
Jul 11 '16 at 10:09
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List of ANSI color escape sequences
...he naming, use, and grouping of colours in human languages is fascinating. Now, back to the show.
8-bit (256) colours
Technology advanced, and tables of 256 pre-selected colours became available, as shown below.
Using these above, you can make pink text like so:
\033[38;5;206m #That is, \033[38...
Error-Handling in Swift-Language
...ry? summonDefaultDragon() else { ... }
Finally, you can decide that you know that error will not actually occur (e.g. because you have already checked are prerequisites) and use try! keyword:
let dragon = try! summonDefaultDragon()
If the function actually throws an error, then you'll get a run...
Pass ruby script file to rails console
... Thanks a lot that does a job! I am using Sublime Text 2 so now I will be able to trigger builds of rails classes and see output directly in IDE :)
– Haris Krajina
Apr 25 '12 at 15:04
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ArrayIndexOutOfBoundsException when using the ArrayList's iterator
Right now, I have a program containing a piece of code that looks like this:
8 Answers
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git clone through ssh
... 4
1.the test2.git file will be download done
2.you will get the new file(known_hosts) in the ~/.ssh
PS: I create the id_rsa and id_rsa.ub by meself and I deliver it to the Gitlab server. using both keys to any client-sides(windows and Linux).
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