AWS SDK V3 – S3 signed url – Laravel

$s3Client = \App::make(‘aws’)->createClient(‘s3’);
$bucket =[bucket name];
$key = [file name];
$command = $s3Client->getCommand(‘GetObject’, array(
‘Bucket’ => $bucket,
‘Key’ => $key,
‘ResponseContentDisposition’ => ‘attachment; filename="’.$key.’"’,
));
$request = $s3Client->createPresignedRequest($command, ‘+10 minutes’);
$signedUrlCannedPolicy = (string) $request->getUri();
echo "singed s3 url =>".$signedUrlCannedPolicy;

Note : you should have configured the s3 access key and secret key in config/aws.php

dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)

To fix this I use –force-overwrite

example

sudo dpkg -i –force-overwrite file.deb

IP based restriction behind the load balance (proxy)

To restrict the access by IP’s through apache

RewriteEngine On
RewriteCond %{HTTP:X-Forwarded-For} !^192\.168\.0\.1
RewriteCond %{HTTP:X-Forwarded-For}!^192\.168\.0\.2
RewriteRule ^(.*)$ http://google.com/ [R=302]

 

by  PHP code you do it as follow,

if ($_SERVER[‘HTTP_X_FORWARDED_FOR’])
{
$ip = $_SERVER[‘HTTP_X_FORWARDED_FOR’];
}
else
{
$ip = $_SERVER[‘REMOTE_ADDR’];
}
$clip = explode(‘,’,$ip);
$ips = array(“xx.xx.xx.xx”,”xx.xx.xx.xx”);
$found =0;
foreach($clip as $sip)
{
if (in_array($sip, $ips))
{
$found++;
}
}
if(!$found)
{
die(“location.href = ‘http://www.google.com‘”);
}

Get list of files inside folder – bash script

to get all files in list

for entry in [folder]/*
do
echo "$entry"
done

to apply filter
for entry in [folder]/*.sql

to list only file name except the full path

echo ${entry##*/}

cannot add inotify watch (limit of inotify watches was reached)

to resolve this,add this line " fs.inotify.max_user_watches=100000 " without quotes at end of the file /etc/sysctl.conf

or you can use this command

sudo sysctl -w fs.inotify.max_user_watches=100000

Clear cache from Amazon cloudfront

In the cloud front setting go to Invalidation tab and create Invalidation.

in the object path specify the s3 path that you want to remove cache ,except the cnd domain url.

eg:

url = https://xxxxxxxx.cloudfront.net/folder1/file.m3u8

object path should be folder1/file.m3u8

if you want remove cache for folder, it should folder1/*

Vega – org.eclipse.swt.SWTError: No more handles Unknown Mozilla path (MOZILLA_FIVE_HOME not set)

After install the following the following lib , it got resolved for me

sudo apt-get install libwebkitgtk-1.0-0

laravel Cannot find module ‘elixir\Elixir’ on run gulp

To over come this issue,open the Gulpfile.js in the root folder of the project and add this

var elixir = require('laravel-elixir');


and open packages.json file and change the version as


"laravel-elixir": "*",


now run npm install again.
And try the gulp command . now you should able to proceed next.

npm , gulp /usr/bin/env: node: No such file or directory – Ubuntu

to overcome this issue install nodejs-legacy

"sudo apt-get install nodejs-legacy"

and then again install npm and gulp .
Now it should work 🙂