https://serverfault.com/questions/568868/working-mail-system-real-users-switch-to-virtual-users-postfixdovecotroundcu

Creating Organizational Units

LDAP breaks everything into very specific pieces, and we’re going to focus on two of those pieces: people and groups. Because we’re creating fairly generic Organizational Units (OUs), we’ll use the Generic Organizational Unit Template. To get there, log into phpLDAPadmin, click to expand your server listing (in my example it’s dc=monkeypantz,dc=net) and then click Create New Entry Here (Figure A).

Figure A

In the right pane (Figure B), select Generic: Organizational Unit.

Figure B

Let’s first create an OU named “groups”. In the next window type groups and click Create Object. Commit the group by clicking Commit in the next window (Figure C).

Figure C

You’ll see a new entry in the left pane called ou=groups (Figure D).

Figure D

Let’s create a new OU named “users”. Walk through the same process as above, though name the OU “users” instead of “groups”. You’ll see “ou=groups” and “ou=users” in the left pane.

Creating groups

Now that we have an OU created for groups, we can add the necessary groups. Let’s create groups for “admin”, “developers”, and “users”. Here’s how.

1. Click the groups OU in the left pane.
2. In the resulting window, click Create Child Entry (Figure E).
3. Click Generic: Posix Group.
4. Type admin into the group text area.
5. Click Create Object.
6. Click Commit.
7. Repeat the process for “developers” and “users”.

Figure E

Creating users

Now that we have our groups created, we want to create users. To do this, follow these steps.

1. Click ou=users from the left pane.
2. In the resulting window, click Create A Child Entry.
3. Select Generic: User Account.
4. Fill out the required information- note that Common Name must be unique (Figure F).
5. Click Create Object.
6. Click Commit.
7. Repeat this process until you have added your necessary users added.

Figure F

Adding users to groups

To add a user to a group, you must know the user’s UID (named User ID in the user creation window). To find a UID go to ou=users | View X child (where X is the number of users) and then locate the user to be added and make note of their associated UID. Once you have that UID, let’s add that user to the developers group. Here’s how.

1. Expand ou=groups.
2. Click the developers group.
3. Click Add New Attribute.
4. From the drop-down, select memberUID.
5. Enter the UID for the user in the memberUID section (Figure G).
6. Click Update Object.

Figure G

After you add the first user, adding subsequent users is much simpler. If you click the group name (under ou=groups in the left pane), you can click Modify Group Members (under memberUID) and then add the users from a list.

Source: How to populate an LDAP server with users and groups via phpLDAPadmin – TechRepublic

CSS Selectors

In CSS, selectors are patterns used to select the element(s) you want to style.

Use our CSS Selector Tester to demonstrate the different selectors.

Source: CSS Selectors Reference

Source: Twenty Twenty Theme – How to Edit Footer Copyright Text – Nagdy

First enable the proxy modules in Apache:

sudo a2enmod proxy
sudo a2enmod proxy_http
sudo /etc/init.d/apache2 restart

Then you will have to edit /etc/apache2/mods-available/proxy.conf file. But before that backup your proxy.conf file:

cd /etc/apache2/mods-available
sudo mv proxy.conf proxy.conf.default

Now create a new file called proxy.conf using your favorite text editor and add the following lines to it:

<ifmodule mod_proxy.c>
  #turning ProxyRequests on and allowing proxying from all may allow
  #spammers to use your proxy to send email.

  ProxyRequests Off
  <proxy *>
    AddDefaultCharset off
    Order Allow,Deny
    Allow from all
  </proxy>

  ProxyPass /transmission http://localhost:9091/transmission
  ProxyPassReverse /transmission http://localhost:9091/transmission
  # Line below is optional
  Redirect permanent /transmission https://myserver.com/transmission/web/

  # Enable/disable the handling of HTTP/1.1 "Via:" headers.
  # ("Full" adds the server version; "Block" removes all outgoing Via: headers)
  # Set to one of: Off | On | Full | Block

  ProxyVia On
</ifmodule>

Source: Transmission Apache proxy setup

'overwrite.cli.url' => 'https://cloud.myserver.com',
'overwriteprotocol' => 'https',

Source: NextCloud won’t load any mixed content – support – Nextcloud community

Source: CSP blocks path from server? · Issue #2791 · nextcloud/server

Vue and React are two frontend JavaScript frameworks popular in the developer world, with React taking the top spot on the podium for three consecutive years now. Both tools offer developers a productive approach to building various Web products, but each has its own best use cases and responds to different business needs. In this article, we’ll explore what those use cases can be, along with perks that make Vue.js and React unique.

Source: Vue vs. React in 2019: Which Framework to Choose and When

Source: Comparison with Other Frameworks — Vue.js