The following libraries and files are automatically created under the TSOS user ID, where nnn specifies the version (210 stands for LWRESD V21.0A):
SYSDAT.LWRESD.nnn.RESOLV.CONF | Configuration file for the program LWRESD |
SYSPRG.LWRESD.nnn | Load library for the program LWRESD |
SYSPRG.LWRESD.nnn.DIG | Load library for the program DIG |
| SYSPRG.LWRESD.nnn.NSLOOKUP | Load library for the program NSLOOKUP |
SYSSII.LWRESD.nnn | Installation file for IMON |
SYSSDF.LWRESD.nnn | SDF syntax file LWRESD |
SYSSPR.LWRESD.nnn | Library of LWRESD procedures |
To prevent the Resolver configuration data from being overwritten when a product update is performed, the file SYSDAT.LWRESD.010.RESOLV.CONF with the suffix .NEW is created in the case of an IMON installation if a file with the name SYSDAT.LWRESD.010.RESOLV.CONF is already present.
The IMON installation creates the DNS Resolver configuration file with the file attributes USER-ACC = *ALL-USERS and ACCESS = *READ. To protect these files more efficiently against modification, you can also assign them a write password.
- The name of the configuration file can be specified in the (RE)START-LWRESD command (section "(RE)START-LWRESD - (Stopping and) Starting LWRESD").
- The diagnostic program DIG can be used to read out entries on the selected DNS server. This enables you both to check the entered records and to determine whether or not a processor is known in DNS. DIG can be used to check DNS server entries independently of whether or not LWRESD is started.
- The diagnostic program NSLOOKUP enables DNS processor names to be converted to IP/IPv6 addresses and vice versa. Naturally a check then also takes place to determine whether the processor name is known in DNS.
- The diagnostic programs PING4/PING6 are used primarily to check whether a processor can be addressed. If a processor name is specified instead of an IP/IPv6 address, the entry is checked indirectly in DNS as a result of the necessary conversion of the name to an address.
By default LWRESD is started under TSOS and directly when the DCSTART command is executed. At every automatic startup LWRESD uses the standard configuration file.
If you have installed SECOS it is also possible to install and start LWRESD under an ID other than TSOS. Proceed as follows to do this:
> | Use the ADD-USER command to set up a user ID with an account number and a password. The name of the user ID should contain a reference to LWRESD, for example UIDLWRES. Caution: set a high enough value for the ADDRESS-SPACE-LIMIT of the ID as the default value for an ID is too low. Select a minimum value of at least 128. |
> | Under the SYSPRIV ID assign the NET-ADMINISTRATION privilege:
|
> | Install LWRESD under this user ID. |
> | Start LWRESD under this user ID using the START-LWRESD command. |