Solaris SMF Not Updating resolv.conf

I recently had an issue where the Solaris SMF did not want to update my /etc/resolv.conf file. Even though “svccfg -s network/dns/client listprop config” showed the entries for my DNS client correctly and also trying the export the SMF simply refused to update the resolv.conf. I dug around in the scripts a little bit and saw the “delcust” option. AFter clearing everything out I could add my entries back in SMF DNS client and resolv.conf automatically updated when doing a refresh.

Found the delcust line here:

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root@t41:/lib/svc/method# more dns-client
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...
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'unconfigure')
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 # Permanently shutdown service
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 svcadm disable $SMF_FMRI
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 # Unroll any admin customization
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 svccfg -s svc:/network/dns/client delcust
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...

Try deleting customization:

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root@t41:/lib/svc/method# svccfg -s svc:/network/dns/client delcust
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Deleting customizations for service: network/dns/client
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root@t41:/lib/svc/method# svcs -a | grep dns/client
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online 14:21:02 svc:/network/dns/client:default
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root@t41:/lib/svc/method# svcadm disable svc:/network/dns/client
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root@t41:/lib/svc/method# svcs -a | grep dns/client
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disabled 14:17:40 svc:/network/dns/client:default
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root@t41:/lib/svc/method# svccfg -s network/dns/client listprop config
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config application
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config/value_authorization astring solaris.smf.value.name-service.dns.client

Add values for DNS:

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root@t41:/lib/svc/method# svccfg -s network/dns/client setprop config/nameserver = net_address: "(10.200.10.10)"
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root@t41:/lib/svc/method# svccfg -s network/dns/client setprop config/domain = astring: domain1.com
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root@t41:/lib/svc/method# svccfg -s network/dns/client setprop config/search = astring: '("domain1.com" "domain2.com")'
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root@t41:/lib/svc/method# svccfg -s network/dns/client listprop config
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config application
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config/value_authorization astring solaris.smf.value.name-service.dns.client
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config/nameserver net_address 10.200.10.10
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config/domain astring domain1.com
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config/search astring "domain1.com" "domain2.com"
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root@t41:/lib/svc/method# svcadm refresh network/dns/client
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root@t41:/lib/svc/method# more /etc/resolv.conf
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...
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domain domain1.com
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search domain1.com domain2.com
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nameserver 10.200.10.10

Check nsswitch also:

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root@t41:/lib/svc/method# svccfg -s name-service/switch listprop config
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config application
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config/default astring files
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config/value_authorization astring solaris.smf.value.name-service.switch
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config/printer astring "user files"
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config/host astring "files dns"
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root@t41:/lib/svc/method# grep host /etc/nsswitch.conf
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hosts: files dns