[PDF] Parallels Server 5 Bare Metal

Managing Services and Processes
For more information on the vzsetxinetd utility, consult the corresponding man pages or refer to
the Parallels Command Line Reference Guide.
Notes:
1. You cannot use the vzsetxinetd utility to change the mode of the xinetd-dependent services in
Containers where the Debian 3.0 OS template is installed.
2. In the current version of Parallels Server Bare Metal, you cannot use the vzsetxinetd utility for
managing services in virtual machines.
Determining Container Identifiers by Process IDs
Each process is identified by a unique PID (process identifier), which is the entry of that process in
the kernel's process table. For example, when you start Apache, it is assigned a process ID. This
PID is then used to monitor and control this program. The PID is always a positive integer. In
Parallels Server Bare Metal, you can use the vzpid (retrieve process ID) utility to print the
Container ID the process with the given id belongs to. Multiple process IDs can be specified as
arguments. In this case the utility will print the Container number for each of the processes.
The typical output of the vzpid utility is shown below:
# vzpid 12
Pid VEID Name
12 101 init
In our example the process with the identifier 12 has the name 'init' and is running in the Container
with ID 101.
Note: You can also display the Container ID where the corresponding process is running by using the
vzps utility.
Starting, Stopping, and Restarting Services
You can manage (i.e. start, stop, and restart) services by using the command line. For example,
you wish to start the httpd service. To do this, execute the following command:
[root@ct222 /]# service httpd start
where service is the standard Linux command, httpd denotes the name of the corresponding
service, and start is the command that will launch this service. In order to check that the httpd
service was successfully launched, you can either type the following Linux command:
[root@ct222 /]# service httpd status
or use the vzps utility when working on your server or the ps utility when working inside your
Containers and passing them the x argument. The output will tell you if the httpd service is
running in your system or not.
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