Kb full doksi megvan

overwiew.md

@@ -24,6 +24,31 @@ Some system calls or solutions are UNIX/Linux specific.
 
 The server is only able to serve A, AAAA, CNAME and TXT records.
 
+## Install
+
+It does not really have a real installation process but there are some circumstances that should be set.
+
+A `dnsuser` and a `dns.db` file should exist and the dnsuser group should have read privileges to the file.
+
+The following commands may be used to set the user stuff:
+```bash
+sudo useradd --no-create-home --user-group --system dnsuser
+sudo chown my-user:dnsuser dns.db
+chmod g=r dns.db
+```
+
+### The database
+
+In the database the `record` table should exist as the following:
+
+|  Name   |  Type  |  Constraint                  |
+|---------|--------|------------------------------|
+|   id    |  int   |   not null, auto increment   |
+|  name   | text   |   not null                   |
+|  type   | text   |   not null                   |
+| content | text   |   not null                   |
+
+
 ## Other
 
 Some specific wrapper classes have been created to simplify coding, but they all are task specific and therefore may hardly be used in a significally different context.