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Full Discussion: DNS issue still not looking in files
Top Forums UNIX for Advanced & Expert Users DNS issue still not looking in files Post 36754 by kie on Wednesday 4th of June 2003 07:57:50 AM
Old 06-04-2003
I've been looking into the DNS issue here what I got, I added a logical interface with the ip 1.1.1.1

cofdr01 > ifconfig hme0 addif 1.1.1.1 up
Created new logical interface hme0:1

added 1.1.1.1 testftp /etc/hosts
/etc/nsstich.conf was hosts:files dns
cofdr01 > ping 1.1.1.1
1.1.1.1 is alive
cofdr01 > nslookup testftp
Server: blah.blah
Address: 170.30.9.12

then changed nsswitch.conf

hosts: dns

ping didn't work either did nslookup

cofdr01 > arp -d 1.1.1.1
1.1.1.1 (1.1.1.1) deleted
cofdr01 > arp -d testftp
arp: testftp: unknown host

from testing this with truss I've found nslookup doesn't look in nsswitch, ping does as I added the files option to nsswitch.conf and

cofdr01 > ping testftp
testftp is alive

Dataprotector I think, looks for the existance existance of resolv.conf and goes ahead otherwise looks in /etc/hosts, I'll try a truss later on a UPDATE


heres the opened files whilst running

truss -o /tmp/kie omnicc -update_host mgunix11 ; grep open /tmp/kie
open("/var/ld/ld.config", O_RDONLY) Err#2 ENOENT
open("/usr/lib/libnsl.so.1", O_RDONLY) = 3
open("/usr/lib/libsocket.so.1", O_RDONLY) = 3
open("/usr/lib/libw.so.1", O_RDONLY) = 3
open("/usr/lib/libBrandChg.so", O_RDONLY) Err#2 ENOENT
open("/opt/omni/lib/libBrandChg.so", O_RDONLY) = 3
open("/usr/lib/libc.so.1", O_RDONLY) = 3
open("/usr/lib/libdl.so.1", O_RDONLY) = 3
open("/usr/lib/libmp.so.2", O_RDONLY) = 3
open("/usr/platform/SUNW,Ultra-4/lib/libc_psr.so.1", O_RDONLY) = 3
open("/etc/netconfig", O_RDONLY) = 3
open("/dev/udp", O_RDONLY) = 3
open64("/etc/.name_service_door", O_RDONLY) = 3
open64("/opt/omni/lib/nls/C/omni.cat", O_RDONLY) = 4
open("/usr/share/lib/zoneinfo/GB", O_RDONLY) = 5
open64("/etc/opt/omni/cell/cell_server", O_RDONLY) = 5
open("/etc/nsswitch.conf", O_RDONLY) = 5
open("/usr/lib/nss_files.so.1", O_RDONLY) = 5
open("/etc/services", O_RDONLY) = 5

it looks in nsswitch.conf bollx, wonder if it has a reading problem, I've copied a good nsswitch file from another. Could this be a new problem for the DP lab boys ?
 

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LEARN ABOUT XFREE86

nss-systemd

NSS-SYSTEMD(8)							    nss-systemd 						    NSS-SYSTEMD(8)

NAME

       nss-systemd, libnss_systemd.so.2 - Provide UNIX user and group name resolution for dynamic users and groups.

SYNOPSIS

       libnss_systemd.so.2

DESCRIPTION

       nss-systemd is a plug-in module for the GNU Name Service Switch (NSS) functionality of the GNU C Library (glibc), providing UNIX user and
       group name resolution for dynamic users and groups allocated through the DynamicUser= option in systemd unit files. See systemd.exec(5) for
       details on this option.

       This module also ensures that the root and nobody users and groups (i.e. the users/groups with the UIDs/GIDs 0 and 65534) remain resolvable
       at all times, even if they aren't listed in /etc/passwd or /etc/group, or if these files are missing.

       To activate the NSS module, add "systemd" to the lines starting with "passwd:" and "group:" in /etc/nsswitch.conf.

       It is recommended to place "systemd" after the "files" or "compat" entry of the /etc/nsswitch.conf lines so that /etc/passwd and /etc/group
       based mappings take precedence.

EXAMPLE

       Here is an example /etc/nsswitch.conf file that enables nss-systemd correctly:

	   passwd:	   compat mymachines systemd
	   group:	   compat mymachines systemd
	   shadow:	   compat

	   hosts:	   files mymachines resolve [!UNAVAIL=return] dns myhostname
	   networks:	   files

	   protocols:	   db files
	   services:	   db files
	   ethers:	   db files
	   rpc: 	   db files

	   netgroup:	   nis

SEE ALSO

       systemd(1), systemd.exec(5), nss-resolve(8), nss-myhostname(8), nss-mymachines(8), nsswitch.conf(5), getent(1)

systemd 237															    NSS-SYSTEMD(8)
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