APACHE2🔗

Count visitors:🔗

Per day🔗

awk '{print $4}' access.log | cut -d: -f1 | uniq -c

Per hour🔗

grep "08/Nov" access.log | cut -d[ -f2|cut -d] -f1 | awk -F: '{print $2":00"}'|sort -n | uniq -c

Per minute🔗

grep "08/Nov/2022:14" access.log | cut -d[ -f2 | cut -d] -f1 | awk -F: '{print $2":"$3}' | sort -nk1 -nk2 | uniq -c | awk '{ if ($1 > 10) print $0}'

If Apache fails after adding certificate to VHost, add this to the VHost:🔗

SSLEngine on

OR

a2enmod ssl

Apachectl commands:🔗

apachectl -S # veit ikki
apachectl -M # Listi av modulum

Permanent and temporary redirect🔗

The codes to keep in mind are 301 and 302:

• 301 is the permanent redirect
• 302 is the temporary redirect

When creating redirects, I would recommend to create temporary redirects first, just in case you somehow made a mistake. Just in case.

When you've tested the temporary redirect, and it works, you can create a permanent redirect thereafter.

Permanent:

RewriteEngine on
RewriteCond %{HTTP_HOST} ^www\.eksempel\.dk [NC]
RewriteRule ^(.*)$ http://eksempel.dk/$1 [L,R=301] # Permanent redirect

Temporary:

RewriteEngine on
RewriteCond %{HTTP_HOST} ^www\.eksempel\.dk [NC]
RewriteRule ^(.*)$ http://eksempel.dk/$1 [L,R=302] # Temporary redirect

The above is great if you want to redirect multiple versions of a domain to a single domain and you want to explicitly define each site.

If you want to redirect all aliases and domains to a specific domain/alias, you cando like so:

Permanent

Redirect permanent www.eksempel.dk http://eksempel.dk/

OR

Redirect 301 www.eksempel.dk http://eksempel.dk/

Temporary

Redirect www.eksempel.dk http://eksempel.dk/

NOTE: Keep in mind the last forward slash must exist if your redirections should work unless your redirect is about a certain path in the current domain/s like so:

Redirect /oldpath http://eksempel.dk/newpath

To get apache to use a private key with a passphrase🔗

1. Create a file with something like this in it; call it something along the lines of "passphrase" or "example.com-passphrase":

#!/bin/sh
echo "passphrase"

2. make it executable:

chmod +x passphrase

3. Put this in apache.conf / httpd.conf / vhost:

SSLPassPhraseDialog exec:/rás/til/passphrase

4. Restart apache

systemctl restart apache2