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Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
...application inside it, and saving the output for later retrieval) could be scripted for automated tests runs.
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NGINX to reverse proxy websockets AND enable SSL (wss://)?
...NGINX config files so you can re-use them (that includes your init.d/nginx script)
yum install pcre pcre-devel openssl openssl-devel and any other necessary libs for building NGINX
Get the nginx_tcp_proxy_module from GitHub here https://github.com/yaoweibin/nginx_tcp_proxy_module and remember the fo...
What exactly is Heroku?
...t push - build of your application is performed by Heroku using your build scripts
Plenty of Add-on resources (applications, databases etc.)
Processes scaling - independent scaling for each component of your app without affecting functionality and performance
Isolation - each process (aka dyno) is c...
What are the risks of running 'sudo pip'?
...xacoricofallapatorius not just there, as some packages also install helper scripts (like pip itself, IPython, django, pygments, ...) so you'll also need access to whichever directory they install themselves in.
– MattDMo
Jan 10 '14 at 23:11
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Where to place $PATH variable assertions in zsh?
... or ksh"; in these compatibility modes:
The usual zsh startup/shutdown scripts are not executed. Login shells source /etc/profile followed by $HOME/.profile. If the ENV environment variable is set on invocation, $ENV is sourced after the profile scripts. The value of ENV is subjected to paramete...
Can git automatically switch between spaces and tabs?
...s:
# local config for the current repo
git config filter.tabspace.smudge 'script_to_make_tabs'
git config filter.tabspace.clean 'script_to_make_spaces'
See Olivier's answer for a concrete working example of such a smudge/clean set of instructions.
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Database Diagram Support Objects cannot be Installed … no valid owner
...und under the 'files' section of the database properties window, and is as scripted by management studio.
USE [your_db_name]
GO
EXEC dbo.sp_changedbowner @loginame = N'sa', @map = false
GO
According to the sp_changedbowner documentation this is deprecated now.
Based on Israel's answer. Aaron's a...
Why does the C# compiler not fault code where a static method calls an instance method?
...od there during runtime.
The "dynamic" keyword is defined for dynamic and script languages, where the Method can be defined at any time, even during runtime. Crazy stuff
Here a sample which handles ints but no strings, because of the method is on the instance.
class Program {
static void Main...
Why is creating a new process more expensive on Windows than Linux?
...r kind of software that is seriously affected by this is any kind of shell scripting that involves the coordination of multiple processes. Bash scripting inside Cygwin, for instance, suffers greatly from it. Consider a shell loop that spawns a lot of sed, awk, and grep in pipelines. Every command sp...
How does Java Garbage Collection work with Circular References?
...maybe you can get away with simply not collecting cycles. Think of a shell script interpreter: shell scripts typically only run for a few seconds and don't allocate much memory.
Combine your reference counting garbage collector with another garbage collector which doesn't have problems with cycles. ...