Creating versus Purchasing a SSL Certificate
Based on the needs of your website, you may decide to either create a self-signed certificate or purchase an SSL certificate. If your site only handles minimally senstitive data, then creating your own self-signed certificate may be appropriate.
If your site handles extremely senstitive data (such as credit card information), you should purchase an SSL certificate. Buying a certificate offers a third-party verification system to ensure visitors the security of your site.
Creating Volume Groups
To create a volume group from one or more physical volumes, use the vgcreate command. The vgcreate command creates a new volume group by name and adds at least one physical volume to it.
The following command creates a volume group named vg1 that contains physical volumes /dev/sdd1 and /dev/sde1.
# vgcreate vg1 /dev/sdd1 /dev/sde1
When physical volumes are used to create a volume group, its disk space is divided into 4MB extents, by default. This extent is the minimum amount by which the logical volume may be increased or decreased in size. Large numbers of extents will have no impact on I/O performance of the logical volume.
You can specify the extent size with the -s option to the vgcreate command if the default extent size is not suitable.
Creating and editing users in MySQL from shell prompt.
First we need to login into MySQL server as root.
Will be prompted for your MySQL root password (note this is not the same as the server root password).
mysql> create user ‘buddy@localhost’ identified by ‘new-password’;
Query OK, 0 rows affected (0.12 sec)
Next we need to flush the privileges which reloads the ‘user’ table in MySQL - do this each time you add or edit users.
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
To give the user buddy select permission on all the databases, this allows the user to read, but not edit and delete.
mysql> grant select on *.* to ‘buddy’@'localhost’;
Query OK, 0 rows affected (0.00 sec)
The GRANT statement enables system administrators to create MySQL user accounts and to grant rights to accounts. To use GRANT, you must have the GRANT OPTION privilege, and you must have the privileges that you are granting. The REVOKE statement is related and enables administrators to remove account privileges.
Creating Account with wwwacct
To create hosting account for a domain through SSH use /scripts/wwwacct.
Example:
serverbuddies.com is the domain name.
buddy is the user name
123abcd is the password
Now From the command Line:
/scripts/wwwacct serverbuddies.com buddy 123abcd 50 advanced n
Creating a wildcard SSL certificate in Plesk
A wildcard DNS record is a record in a DNS zone that will match requests for non-existent domain names. A wildcard DNS record is specified by using a “*” as the left most label (part) of a domain name, e.g. *.example.com.
A wildcard DNS record in a zone file looks similar to this example:
*.serverbuddies.com. 3600 IN MX 10 host1.serverbuddies.com.
This wildcard DNS record will cause DNS lookups on domain names ending in example.com that do not exist to have MX records synthesized for them. So, a lookup for the MX record for somerandomname.example.com would return an MX record pointing to host1.example.com.
Since version 8.0.1 Plesk allows to create and use certificates for Wildcard domain names (like *.serverbuddies.com.com).
Wildcard certificate can be created the same way that usual certificate is generated. The only difference that you specify the name with “*” sign in the left path, for example *.serverbuddies.com” domain name in the Wildcard certificate will match all this domain’s subdomains, like mail.serverbuddies.com, ftp.serverbuddies.com, etc
