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quanta
n00b
Joined: 11 Sep 2010
Posts: 61
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 Posted: Sat Sep 11, 2010 3:34 pm Post subject: Sometimes my hostname automatically change to dhcppc[x]? |
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Hi,
I am using KDE 4.4.5. Sometime, my hostname automatically change to dhcppc[x] with x random from 0 to 9.
My /ets/hosts file:
| Code: | 127.0.0.1 gentoo.homenetwork gentoo localhost
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KDE configuration to start on boot:
| Code: | quanta@dhcppc5 ~ $ cat /etc/conf.d/xdm
CHECKVT=7
DISPLAYMANAGER="kdm"
NEEDS_HALD="auto" |
Contents in the ~/.kde4 folder:
| Code: | $ ls .kde4/
Autostart cache-dhcppc4 cache-gentoo socket-dhcppc2 socket-dhcppc7 tmp-dhcppc1 tmp-dhcppc6
cache-dhcppc0 cache-dhcppc5 cache-localhost socket-dhcppc3 socket-dhcppc9 tmp-dhcppc2 tmp-dhcppc7
cache-dhcppc1 cache-dhcppc6 share socket-dhcppc4 socket-gentoo tmp-dhcppc3 tmp-dhcppc9
cache-dhcppc2 cache-dhcppc7 socket-dhcppc0 socket-dhcppc5 socket-localhost tmp-dhcppc4 tmp-gentoo
cache-dhcppc3 cache-dhcppc9 socket-dhcppc1 socket-dhcppc6 tmp-dhcppc0 tmp-dhcppc5 tmp-localhost |
Why did KDE create so many files? It seems to be KDE cache?
I also tried with xfce + slim, it shows the warning below after logining:
| Quote: | Could not look up internet address for dhcppc2.
This will prevent Xfce from operating correctly.
It may be possible to correct the problem by adding
dhcppc2 to the file /etc/hosts on your system. |
Appending dhcppc2 at the end of 'localhost' line in /etc/hosts solved this problem. But why my hostname automatically change to dhcppc[x]? Does anyone have any info on this? |
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Kobboi
l33t
Joined: 29 Jul 2005
Posts: 672
Location: Belgium
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| Posted: Sat Sep 11, 2010 5:10 pm Post subject: |
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| Capture the DHCP communication with Wireshark. I guess the server is sending a hostname to your DHCP client, and that that client is configured to use that hostname on your system. |
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quanta
n00b
Joined: 11 Sep 2010
Posts: 61
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| Posted: Sun Sep 12, 2010 4:47 am Post subject: |
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| Kobboi wrote: | | Capture the DHCP communication with Wireshark. I guess the server is sending a hostname to your DHCP client, and that that client is configured to use that hostname on your system. |
Thank you, you are right.
| Code: | | tcpdump -vv -s0 -i wlan0 port bootps |
give me the following info:
| Quote: | Option: (t=53,l=1) DHCP Message Type = DHCP ACK
Option: (t=1,l=4) Subnet Mask = 255.255.255.0
Option: (t=3,l=4) Router = 192.168.1.1
Option: (t=6,l=4) Domain Name Server = 192.168.1.1
Option: (t=12,l=7) Host Name = "dhcppc4"
Option: (t=15,l=1) Domain Name = ""
Option: (t=58,l=4) Renewal Time Value = 1 day, 12 hours
Option: (t=59,l=4) Rebinding Time Value = 2 days, 15 hours
Option: (t=51,l=4) IP Address Lease Time = 3 days
Option: (t=54,l=4) DHCP Server Identifier = 192.168.1.1 |
Remove the host_name at the end of line "option domain_name_servers, domain_name, domain_search, host_name" or append "nohook 30-hostname" solved this problem:
| Code: |
$ cat /etc/dhcpcd.conf
option domain_name_servers, domain_name, domain_search
option ntp_servers
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