Tags: security

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  1. MySQL permissions for backup
    2 months ago by spirit
    Create a specific user for backups purpose with read-only permissions
    1. GRANT SHOW DATABASES, SELECT, LOCK TABLES, RELOAD ON *.* to backup@localhost IDENTIFIED BY 'password';
    2. FLUSH PRIVILEGES;
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  2. Blocking Web Access to Cron Jobs
    7 months ago by spirit
    it's also possibl with a .htaccess file and "deny from all " in that file
    1. if (isset($_SERVER['REMOTE_ADDR'])) die('Permission denied.');
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  3. htpasswd replacement snippet using perl and crypt
    9 months ago by spirit
    1. perl -le 'print crypt("password", "salt")'
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  4. Sponsorised links
    sponsorised links
  5. Prevent Apache and PHP to disclose any information about themselves
    1 year ago by spirit
    1. /etc/apache2/apache2.conf
    2. > ServerTokens Prod
    3. > ServerSignature Off
    4.  
    5. /etc/php5/apache2/php.ini
    6. > expose_php = Off
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  6. Apache Tips: Disable the HTTP TRACE method
    1 year ago by spirit
    Most vulnerability scanners will complain about TRACE method being enabled on the web server tested. This tip disable it and return a 403 FORBIDDEN error to the client (apache versions newer than 1.3.34 for the legacy branch, and 2.0.55 for apache2).
    This needs to be added in the main server config and the default is enabled (on):

TraceEnable Off
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  7. Interdire le PHP dans un répertoire avec apache
    2 years ago by spirit
    Permet par exemple de laisser des internautes déposer des fichiers dans un répertoire. Si on ne veut pas qu'ils puissent déposer un fichier PHP et l'exécuter, on peut vouloir empêcher l'exécution de PHP dans ce répertoire.
    1. # ajouter la conf suivante dans votre VirtualHost
    2.  
    3. <Location /upload/>
    4.    AddType text/plain .php .php4 .php5 .phtml .py .pl .cgi .rb
    5. </Location>
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  8. Set the maximum number of MAC addresses allowed on a switch interface
    2 years ago by spirit
    Prevent flooding
    Switch# conf t
Switch1(config)# interface ethernet 0/4 
Switch1(config-if)# port secure max-mac-count 100
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