namerslv Command

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Purpose

Directly manipulates domain name server entries for local resolver routines in the system configuration database.

Syntax

To Add a Name Server Entry

namerslv -a { -i IPAddress | -D DomainName| -S SearchList}

To Delete a Name Server Entry

namerslv -d { -i IPAddress | -n | -l}

To Delete All Name Server Entries

namerslv -X [  -I ]

To Change a Name Server Entry

namerslv -c DomainName

To Display a Name Server Entry

namerslv -s [  -I | -n |  -l  ] [  -Z ]

To Create the Configuration Database File

namerslv -b [  -i IPAddress [  -D DomainName ] [  -S SearchList ] ]

To Rename the Configuration Database File

namerslv -E FileName

To Move the Configuration Database File to Prevent Name Server Use

namerslv -e

To Import a File into the Configuration Database File

namerslv -BFileName

To Change a Search List Entry

namerslv -CSearch List

Description

The namerslv low-level command adds or deletes domain name server entries for local resolver routines in the system configuration database. By default, the system configuration database is contained in the /etc/resolv.conf file is moved to the file specified by the FileName variable.
Item Description
-a Adds an entry to the system configuration database. The -a flag must be used with either the -i or -D  flag.
-B FileName Restores the /etc/resolv.conf file from the file specified by the FileName variable.
-b Creates the system configuration database, using the /etc/resolv.conf.sv file. If the /etc/resolv.conf.sv file does not exist, an error is returned.
Note: The /etc/resolv.conf.sv file is not shipped with the system. You have to create the file before the -b flag will work.
-C Changes the search list in the /etc/resolv.conf file.
-c DomainName Changes the domain name in the system configuration database.
-D Indicates that the command deals with the domain name entry.
-d Deletes an entry in the system configuration database. It must be used with the -i IPAddress flag or the -n  flag. The -i flag deletes a name server entry. The -n flag deletes the domain name entry.
-E FileName Renames the system configuration database file, so you can stop using a name server. The /etc/resolv.conf file is moved to the file specified by the FileName variable.
-e Moves the /etc/resolv.conf file to the /etc/resolv.conf.sv file, preventing use of a name server.
-I (Uppercase i) Specifies that the -s flag or -X flag should print all name server entries.
-i IPAddress Indicates that the command deals with a name server entry. Use dotted decimal format for the given IP address.
-l (Lowercase L) Specifies that the operation is on the search list. Use this flag with the -d and -s flag.
-n Specifies that the operation is on the domain name. Use this flag with the -d flag and the -s flag.
-S SearchList Changes the search list in the system configuration database.
-s Shows all domain and name server entries in the configuration system database. If you use the -i flag, the namerslv command shows all name server entries. If you use the -n flag, the namerslv command shows the domain name entry found in the database.
-X Deletes all entries in the database. Use the -I flag with this flag to delete all name server entries.
-Z Generates the output of the query in colon format. This flag is used when the namerslv command is called from the SMIT usability interface.

Examples

  1. To add a domain entry with a domain name of abc.aus.century.com, type:
    namerslv  -a  -D abc.aus.century.com
  2. To change the abc.aus.century.com domain entry to the domain name xyz.aus.century.com, type: 
    namerslv xyz.aus.century.com
  3. To add a name server entry with IP address 192.9.201.1, type:
    namerslv  -a  -i 192.9.201.1
  4. To show all system configuration database entries related to domain name server information used by local resolver routines, type:
    namerslv  -s
    The output is given in the following format: 
    domain xyz.aus.century.com
    name server 192.9.201.1
  5. To rename the /etc/resolv.conf file to stop using the name server and specify the new file name, /etc/resolv.back, type:
    namerslv  -E /etc/resolv.back

Files

Item Description
/usr/sbin/namerslv Contains the namerslv command.
/etc/html