Avocent ACS 5000 manual Expert Ports Hostname Discovery Fields

Chapter 9: Ports Menu and Forms 127

Expert - Ports - Hostname Discovery

An administrator can use the Expert - Ports - Hostname Discovery screen to configure lists of probe and answer strings that apply to all serial ports that have been configured for hostname discovery. See Hostname Discovery on page 13 for details about how the strings are used for other configurations needed for hostname discovery to work.

If you want the console server to attempt to discover the hostname, select Expert - Ports - Hostname Discovery and enter the time-out value in seconds in the field provided. If the console server cannot discover the hostname in the allotted time, the default target device name is used.

The probe and answer strings can be left blank. The default strings have a broad range and work in most cases.

Table 9.14: Expert - Ports - Hostname Discovery Fields

Fields Accepted Values

A list of strings, delimited by double quotes (“) and separated by spaces. The following C-style escape sequences are accepted: “\n” (new line; “\r” (carriage return); “\t” (horizontal tabulation); “\f” (form-

Hostname Discovery Probe Strings feed); “\\” ((backslash) and “\”” (double-quote). Probe strings can have more than one escape sequence and use regular characters, but simpler sequences such as “\r” or “\n” are recommended. “\n” is the default if no strings are defined.

A list of strings, delimited by double quotes (“) and separated by spaces. Must be written as POSIX extended regular expressions. If no

Hostname Discover Answer Strings strings are defined, then “([A-Za-z0-9\\.-_]+)[ ]+[Ll]ogin[:]?[ ]?$” is the default. If the user regex has more than one group, then only the first group is matched.

To configure hostname discovery probe and answer strings [Expert]:

1.Select Expert - Ports - Hostname Discovery. The Hostname Discovery screen appears.

2.Enter one or more strings delimited by double quotes and separated by spaces.

3.Click apply changes.