1. cd to Drupal installation Directory

1. Backup Drupal
   drush archive-dump
2. Check Drupal Update and get the list of modules that have update
   drush ups
   {{code}}
   1. Set Drupal Website to maintenance mode
   {{code}}
   drush sset system.maintenance_mode 1
   {{code}}
   1. Clear Drupal Cache
   {{code}}
   drush cr
   {{/code}}
   1. Update Drupal and press "Y" when asked
   {{code}}
   drush up drupal
   {{/code}}
   1. Update Drupal Database
   {{code}}
   drush updb
   {{/code}}
   1. Update Drupal modules
   {{code}}
   drush up XXXX XXXX
   {{/code}}
   where XXXX is the module name (the string inside the bracket in step 2)
   
   1. Set Drupal Website back to live mode
   {{code}}
   drush sset system.maintenance_mode 0
   {{/code}}
   1. Clear Drupal Cache Again
   {{code}}
   drush cr
   {{/code}}

By default, Drupal will not allow running of any other PHP scripts within Drupal directory. It will return "403 Forbidden", if anybody trying to access the PHP scripts.

To by pass this constraint, we will need to add 2 lines in .htaccess. .htaccess is in Drupal root directory.

1. Open .htaccess with a text editor

1. Find the section below:
     RewriteCond %{REQUEST_FILENAME} !-f
     RewriteCond %{REQUEST_FILENAME} !-d
     RewriteCond %{REQUEST_URI} !=/favicon.ico
     RewriteRule ^ index.php [L]
   
     Before RewriteRule, add
   RewriteCond %{REQUEST_URI} !script
   where "script" is the directory name or file name of your custom php script.

 3. Find the section below:
  RewriteCond %{REQUEST_URI} !/core/[^/]*\.php$
  RewriteCond %{REQUEST_URI} !/core/modules/system/tests/https?.php
  RewriteCond %{REQUEST_URI} !/core/modules/statistics/statistics.php$
  RewriteRule "^(.+/.*|autoload)\.php($|/)" - [F]

  Before RewriteRule, add
RewriteCond %{REQUEST_URI} !script
where "script" is the directory name or file name of your custom php script.

4. Save the file and exit.

5. You will need to add the lines back every time you upgrade Drupal.

What does the changes mean?

RewriteCond means the condition for the RewriteRule to execute.

So, by adding a "RewriteCond %{REQUEST_URI} !script", we add a new condition that tells the web server to skip this rule, if the URI has the word "script" in it. So, the "script" directory or file will no longer be managed by Drupal.

See how it works:

https://worria.com/script/trace.php

https://worria.com/

*not Drupal anymore

Symptom

Cause:

Data Collector reachs max run time (polling interval). Remaining SNMP data will not be collected.

Solution:

1. Use spine instead of cmd.php

2. Increase "Processes" and "Threads" setting under "Data Collection" --> "Data Collectors"

Recommend Setting for

"Processes" = 2 * no. Of Cores available

"Threads" = 10 - 15