Bug 1462091 - [dhclient] Missing uid in lease filename
[dhclient] Missing uid in lease filename
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: dhcp (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
: rc
: ---
Assigned To: Pavel Zhukov
Release Test Team
Depends On:
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Reported: 2017-06-16 03:33 EDT by Leos Pol
Modified: 2017-07-03 04:46 EDT (History)
1 user (show)

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Last Closed: 2017-07-03 04:22:48 EDT
Type: Bug
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Description Leos Pol 2017-06-16 03:33:31 EDT
Description of problem:
Without NetworkManager dhclient creates lease file in /var/lib/dhclient/ in format dhclient-{uid}-{iface}.lease. I'm not sure, what is uid, but comparing with dhclient-4.2.5-47.el7, new version has uid blank.

Version-Release number of selected component (if applicable):

How reproducible:
always on my system

Steps to Reproduce:
1. systemctl stop NetworkManager
2. systemctl restart network
3. ps -ef | grep dhclient

Actual results:
root     10858     1  0 03:18 ?        00:00:00 /sbin/dhclient -1 -q -lf /var/lib/dhclient/dhclient--eth0.lease -pf /var/run/dhclient-eth0.pid -H qeos-117 eth0

Expected results:
root      9796  0.0  0.6 112820 12788 ?        Ss   03:20   0:00 /sbin/dhclient -H qeos-124 -1 -q -lf /var/lib/dhclient/dhclient-a3cbc97c-53c9-4cec-bd7d-51054f677d9a-eth0.lease -pf /var/run/dhclient-eth0.pid eth0

Additional info:
Comment 2 Pavel Zhukov 2017-06-27 09:21:46 EDT
Hi Leos,

initscripts (not dhclient) takes UUID from ifcfg- file (one in /etc/sysconfig/network-scripts/ifcfg-<iface> name).  As this parameter is not mandatory it can be skipped and in that case you'll have blank uuid and "--" in leases filename.
Please confirm it's the case for you.
Comment 4 Pavel Zhukov 2017-07-03 04:22:48 EDT
Closing as per https://bugzilla.redhat.com/show_bug.cgi?id=1462091#c2
Feel free to open bug on initscripts if it's not the case and uuid is missed even if it was properly specified in ifcfg file
Comment 5 Leos Pol 2017-07-03 04:46:47 EDT
Pavel, you're right. My 7.3 machine has uuid generated in ifcfg, but 7.4 not. Thanks for explanation.

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