Arch Linux

bl4ck5un

Member

Registered: 2015-01-28

Posts: 16

[SOLVED] Where to view dhcp log

It's my first post here, hello to everyone!

I installed Arch today and everything works fine. The only quirk I came across is dhcpcd issue: every time after the system starts, dhcpcd will try a few times and then fails. But I can always make it work by simply restart dhcpcd service, for a few times.
It's really weird and I suspect this has something to do with the dhcp management within my network. So I wonder where I can find dhcpcd'log to inspect. I tried journal but no luck.

Thanks in advance.

Last edited by bl4ck5un (2015-01-28 19:07:25)

lucke

Member

From: Poland

Registered: 2004-11-30

Posts: 4,019

Re: [SOLVED] Where to view dhcp log

Try "journalctl -u dhcpcd".

bl4ck5un

Member

Registered: 2015-01-28

Posts: 16

Re: [SOLVED] Where to view dhcp log

Try "journalctl -u dhcpcd".

Thanks for reply, but it's empty. "journal -u NetworkManager" is also empty. Where else can I view more detailed log?

lucke

Member

From: Poland

Registered: 2004-11-30

Posts: 4,019

Re: [SOLVED] Where to view dhcp log

What does "systemctl status dhcpcd" show?

bl4ck5un

Member

Registered: 2015-01-28

Posts: 16

Re: [SOLVED] Where to view dhcp log

What does "systemctl status dhcpcd" show?

dhcpcd.service - dhcpcd on all interfaces
   Loaded: loaded (/usr/lib/systemd/system/dhcpcd.service; enabled; vendor preset: disabled)
   Active: active (running) since Wed 2015-01-28 13:56:46 EST; 28s ago
  Process: 1966 ExecStop=/usr/bin/dhcpcd -x (code=exited, status=0/SUCCESS)
  Process: 1970 ExecStart=/usr/bin/dhcpcd -q -b (code=exited, status=0/SUCCESS)
 Main PID: 1972 (dhcpcd)
   CGroup: /system.slice/dhcpcd.service
           └─1972 /usr/bin/dhcpcd -q -b

BTW, this is the status after I manually restart the service.

Last edited by bl4ck5un (2015-01-28 19:00:25)

frank604

Member

From: BC, Canada

Registered: 2011-04-20

Posts: 1,219

Re: [SOLVED] Where to view dhcp log

Sounds like you have conflicting service.  Only enable one.  If you use dhcpcd to connect, disable networkmanager's systemd service or vice versa.  You should also read https://wiki.archlinux.org/index.php/systemd

bl4ck5un

Member

Registered: 2015-01-28

Posts: 16

Re: [SOLVED] Where to view dhcp log

Sounds like you have conflicting service.  Only enable one.  If you use dhcpcd to connect, disable networkmanager's systemd service or vice versa.  You should also read https://wiki.archlinux.org/index.php/systemd

That works, thank you!

electron1979

Member

Registered: 2018-11-05

Posts: 1

Re: [SOLVED] Where to view dhcp log

Sounds like you have conflicting service.  Only enable one.  If you use dhcpcd to connect, disable networkmanager's systemd service or vice versa.  You should also read https://wiki.archlinux.org/index.php/systemd

Seems to have solved my DHCP issue on our RPi 3s, too!
Thanks

circleface

Member

Registered: 2012-05-26

Posts: 639

Re: [SOLVED] Where to view dhcp log

electron1979, please do not necrobump old threads with an empty post.

jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,426

Website

Re: [SOLVED] Where to view dhcp log

Seems to have solved my DHCP issue on our RPi 3s, too!

1. Don't necrobump: https://wiki.archlinux.org/index.php/Co … bumping.22

2. Arch-ARM is a separate distribution, it is not supported here: https://bbs.archlinux.org/viewtopic.php?id=153431

Closing

---

Arch + dwm   •   Mercurial repos  •   Surfraw

Registered Linux User #482438