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How can I get Docker Linux container information from within the container itself?
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Unless overridden, the hostname seems to be the short container id in Docker 1.12
root@d2258e6dec11:/project# cat /etc/hostname
d2258e6dec11
Externally
$ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED ...
Should you commit .gitignore into the Git repos?
...mally yes, .gitignore is useful for everyone who wants to work with the repository. On occasion you'll want to ignore more private things (maybe you often create LOG or something. In those cases you probably don't want to force that on anyone else.
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What's so wrong about using GC.Collect()?
...one of these things that respectable programmers wouldn't ever use, even those who don't even know what it is for.
20 Answe...
Increasing the maximum number of TCP/IP connections in Linux
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The ephermal port range defines the maximum number of outbound sockets a host can create from a particular I.P. address. The fin_timeout defines the minimum time these sockets will stay in TIME_WAIT state (unusable after being used once).
Usual system defaults are:
net.ipv4.ip_local_port_range = ...
Bash: infinite sleep (infinite blocking)
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BSD (or at least OS X) doesn't understand sleep infinity either, though it was a cool thing to learn about for Linux. However, while true; do sleep 86400; done ought to be an adequate substitute.
– Ivan X
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Why is SCTP not much used/known
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Indeed, SCTP is used mostly in the telecom area. Traditionally, telecom switches use SS7 (Signaling System No. 7) to interconnect different entities in the telecom network. For example - the telecom provider's subscriber data base(HLR), with a swi...
How to create PDF files in Python [closed]
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I suggest pyPdf. It works really nice. I also wrote a blog post some while ago, you can find it here.
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How do I get the logfile from an Android device?
...e following:
connect the device to the pc.
Check that I already setup my os for that particular device.
Open a terminal
Run adb shell logcat > log.txt
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How can I create a directly-executable cross-platform GUI app using Python?
...gram that will convert your python scripts into standalone executables.
Cross-platform GUI libraries with Python bindings (Windows, Linux, Mac)
Of course, there are many, but the most popular that I've seen in wild are:
Tkinter - based on Tk GUI toolkit (de-facto standard GUI library for python...
Convert string to integer type in Go?
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For example,
package main
import (
"flag"
"fmt"
"os"
"strconv"
)
func main() {
flag.Parse()
s := flag.Arg(0)
// string to int
i, err := strconv.Atoi(s)
if err != nil {
// handle error
fmt.Println(err)
os.Exit(2)
}
fmt...