search for: dhclient

Hello, I have a problem which is that some of my VMs are loosing there IP addresses from time to time. What I saw in the log is when this VM loose its IP address there are DHCPREQUEST send from the VM by dhclient and the server responded only 50 minutes later ! Any help, advise on how to debug would be welcome. Thanks in advance Patrick Here after is an extract from the log July 1st 2016, 05:08:46.156 zen.pipiche.net <http://zen.pipiche.net/> dnsmasq-dhcp DHCPREQUEST(virbr1) 10.10.0.10 52:54:10:...

Hello, I have a problem which is that some of my VMs are loosing there IP addresses from time to time. What I saw in the log is when this VM loose its IP address there are DHCPREQUEST send from the VM by dhclient and the server responded only 50 minutes later ! Any help, advise on how to debug would be welcome. Thanks in advance Patrick Here after is an extract from the log July 1st 2016, 05:08:46.156 zen.pipiche.net <http://zen.pipiche.net/> dnsmasq-dhcp DHCPREQUEST(virbr1) 10.10.0.10 52:54:10:...

Hello, I have a problem which is that some of my VMs are loosing there IP addresses from time to time. What I saw in the log is when this VM loose its IP address there are DHCPREQUEST send from the VM by dhclient and the server responded only 50 minutes later ! Any help, advise on how to debug would be welcome. Thanks in advance Patrick Here after is an extract from the log July 1st 2016, 05:08:46.156 zen.pipiche.net <http://zen.pipiche.net/> dnsmasq-dhcp DHCPREQUEST(virbr1) 10.10.0.10 52:54:10:...

Hello, I have a problem which is that some of my VMs are loosing there IP addresses from time to time. What I saw in the log is when this VM loose its IP address there are DHCPREQUEST send from the VM by dhclient and the server responded only 50 minutes later ! Any help, advise on how to debug would be welcome. Thanks in advance Patrick Here after is an extract from the log July 1st 2016, 05:08:46.156 zen.pipiche.net <http://zen.pipiche.net/> dnsmasq-dhcp DHCPREQUEST(virbr1) 10.10.0.10 52:54:10:...

...15 Jan 22 08:00:29 mercury ntpd[6254]: ntpd exiting on signal 15 Jan 22 20:00:30 mercury ntpd[20424]: ntpd exiting on signal 15 Jan 23 08:00:31 mercury ntpd[2101]: ntpd exiting on signal 15 Looking at logs this appears to be corrolated to boot.log entries Jan 22 08:00:29 mercury NET[20506]: /sbin/dhclient-script : updated /etc/resolv.conf Jan 22 20:00:30 mercury NET[2080]: /sbin/dhclient-script : updated /etc/resolv.conf Jan 22 20:00:30 mercury NET[2188]: /sbin/dhclient-script : updated /etc/resolv.conf Jan 23 08:00:31 mercury NET[16383]: /sbin/dhclient-script : updated /etc/resolv.conf Jan 23 08:00...

While troubleshooting my MultiISP box, I suspect I might have found either a bug or an incompatibility with CentOS 5.2. In prog.header (function detect_dynamic_gateway), Shorewall tries to look for: /var/lib/dhcp/dhclient-${1}.lease However (at least under CentOS 5 - unknown about other OSes), this should be: /var/lib/dhclient/dhclient-${1}.leases (different path, and "leases" should be plural.) After manually correcting this in prog.header, I was now having the following error message: Error: an i...

...rly b/scripts/ovirt-early index 1c15792..6b510ca 100755 --- a/scripts/ovirt-early +++ b/scripts/ovirt-early @@ -43,6 +43,9 @@ configure_ovirt_management_nic() { log "Using interface $DEVICE" # setup temporary interface to retrieve configuration /sbin/dhclient $1 + # save dhclient PID for killing it later + dhclientPid=$( /sbin/pidof dhclient ) + fi if [ $? -eq 0 ]; then # from network-scripts/ifup-post @@ -97,7 +100,9 @@ configure_ovirt_management_nic() { log "Default config applied" fi...

Hello, I''m using shorewall-4.5.16 with centos5. The dhclient stores the lease information on the /var/lib/dhclient/dhclient-<DEVICE>.leases file. The /var/lib/shorewall/firewall script has the function detect_dynamic_gateway that detects the gateway based on the leases file. The code in the function is: detect_dynamic_gateway() { # $1 = interface...

Summary: if you have C5 guests with dhclient "bad udp checksum" issues then this entry on the host will fix it: iptables -A POSTROUTING -t mangle -p udp --dport bootpc -j CHECKSUM --checksum-fill Detail: If anyone else is seeing this... Feb 11 19:22:11 mercury dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67 (xid=0x63be1...

...approximate sequence of events that took place: 1. ifdown eth0 2. edit /etc/sysconfig/network-scripts/ifcfg-eth0 with static IP address 3. wait for network folks to reconfigure switch 4. ifup eth0 I may have reversed steps 1 and 2 on some of the systems. The problem was that the dhclient process didn't go away, and kept renewing the old lease. Our DHCP server is configured to contact the DNS server and update the entry for each host it serves. So the DNS entries for these systems were pointing to the old address in the old VLAN. The eth0 interface itself just kept th...

Hi, I have CentOS 7 and I am trying to get dhclient hooks working. I have 1) created file /etc/dhcp/dhclient-enp4s0.conf, 2) created directories /etc/dhcp/{dhclient-enter-hooks.d, dhclient-exit-hooks.d}, 3) added line 'DHCLIENTARGS="-nc"' into file ifcfg-enp4s0 and 4) added file /etc/dhcp/dhclient-enter-hooks.d/test with line ech...

Hi-- Are folks familiar with: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0997 http://www.isc.org/software/dhcp/advisories/cve-2011-0997 http://nakedsecurity.sophos.com/2011/04/07/flaw-in-iscs-dhclient-could-allow-remote-code-execution/ Checking http://www.freebsd.org/cgi/cvsweb.cgi/src/sbin/dhclient/dhclient.c, I don't see signs that it may have been updated. But, I also can't readily tell which version of dhclient FreeBSD actually has and how much it might have been changed from the I...

Rich you're right, I forgot to run make. I added 'set -x' and reran make and then ran 'virt-builder -v -x' and it seems to hang at dhclient (see attached log). Shawn On Tue, Jun 30, 2015 at 9:17 AM, Richard W.M. Jones <rjones@redhat.com> wrote: > On Tue, Jun 30, 2015 at 09:07:25AM -0600, Shawn Greig wrote: > > - I tried forcing TCG and it gets to the same spot and stops. > > That excludes the possibility that it...

...Mar 9 09:03:21 localhost ifup: SIOCSIFFLAGS: Connection timed out Mar 9 09:03:21 localhost kernel: eth1: Error -110 setting MAC address Mar 9 09:03:21 localhost kernel: eth1: Error -110 configuring card Mar 9 09:03:21 localhost ifup: SIOCSIFFLAGS: Connection timed out Mar 9 09:03:21 localhost dhclient: DHCPREQUEST on eth1 to 255.255.255.255 port 67 Mar 9 09:03:21 localhost dhclient: send_packet: Network is down Mar 9 09:03:21 localhost dhclient: receive_packet failed on eth1: Network is down Mar 9 09:03:25 localhost dhclient: DHCPREQUEST on eth1 to 255.255.255.255 port 67 Mar 9 09:03:25 l...

Are you sure you're running dhclient prior to starting the samba daemons? ------------------------ "Zuccarelli, Pablo" <Pabloz@argentina.strykercorp.com> wrote: ------------------------ Hi list. > > Im trying to configure a fileserver in a linux RH 8.0 client machine >that gets IP configuration from a NT4 DH...

...r: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) started... Jul 27 19:31:38 smurf3 NetworkManager: <info> (wlan0): device state change: 5 -> 7 Jul 27 19:31:38 smurf3 NetworkManager: <info> Activation (wlan0) Beginning DHCP transaction. Jul 27 19:31:38 smurf3 dhclient: Internet Systems Consortium DHCP Client V3.0.5-RedHat Jul 27 19:31:38 smurf3 dhclient: Copyright 2004-2006 Internet Systems Consortium. Jul 27 19:31:38 smurf3 dhclient: All rights reserved. Jul 27 19:31:38 smurf3 dhclient: For info, please visit http://www.isc.org/sw/dhcp/ Jul 27 19:31:38 smurf...

Yeah, it's definitely an issue with dhclient. I patched the init script to use dhcpcd instead and everything is working as expected now. I've attached a log containing the strace of dhclient if that helps you or someone else in the future. Thanks for all your help Rich. Shawn On Tue, Jun 30, 2015 at 9:53 AM, Richard W.M. Jones <rjo...

...d: DHCPREQUEST for 10.0.0.205 (10.0.0.134) from 52:54:00:5a:a7:48 via br0 Feb 8 08:28:56 penfold dhcpd: DHCPACK on 10.0.0.205 to 52:54:00:5a:a7:48 via br0 I wonder if this could be related to the "renew" problem I'm seeing on a pre-existing 5.9 machine: Feb 8 07:00:11 mercury dhclient: DHCPREQUEST on eth0 to 10.0.0.134 port 67 (xid=0x4e88b5e5) Feb 8 07:00:55 mercury dhclient: DHCPREQUEST on eth0 to 10.0.0.134 port 67 (xid=0x4e88b5e5) Feb 8 07:00:55 mercury dhclient: 5 bad udp checksums in 5 packets Feb 8 07:01:02 mercury dhclient: DHCPREQUEST on eth0 to 10.0.0.134 port...

.../appliance/init @@ -122,7 +122,9 @@ ip link set dev lo up if test "$guestfs_network" = 1; then iface=$(ls -I all -I default -I lo /proc/sys/net/ipv4/conf) - touch /etc/fstab # Workaround for Ubuntu. + # Two workarounds for Ubuntu: + touch /etc/fstab + rm -f /etc/dhcp/dhclient-enter-hooks.d/resolved if dhclient --version >/dev/null 2>&1; then dhclient $iface else -- 2.20.1

...Make it a system connection instead of a user connection. Or give the >>> host a static name on install and don't allow dhcp to override it. >> > > If you move networks and you are slaving your hostname to the DHCP > offered name, then yes. But why do that? In /etc/dhcp/dhclient.conf you > can configure exactly what you want and don't want from the server. > There's a lot of options (man dhclient.conf is very helpful) but here's > an example: NetworkManager invokes dhclient with a generated config file that ignores /etc/dhcp/dhclient.conf: dhcl...