DHCP interferes with hostname configuration Announcing the arrival of Valued Associate #679:...
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DHCP interferes with hostname configuration
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern)
2019 Community Moderator Election Results
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I'm running an arch system with KDE4/Plasma, wpa_supplicant, networkmanager, systemd ...
cat /proc/version Linux version 5.0.0-arch1-1-ARCH (builduser@heftig-18825) (gcc version 8.2.1 20181127 (GCC)) #1 SMP
PREEMPT Mon Mar 4 14:11:43 UTC 2019
The content of my /etc/hostname reads localhost.
After boot, the shell command hostname now outputs localhost. More precisely:
# hostnamectl
Static hostname: localhost
Transient hostname: localhost.localdomain
Icon name: computer-laptop
Chassis: laptop
Machine ID: 7e0a101cd2f0406497a6e4354fc9b3b7
Boot ID: a1424a0995da4e84b1e55b7f79df957e
Operating System: Arch Linux
Kernel: Linux 5.0.0-arch1-1-ARCH
Architecture: x86-64
When I turn on WiFi, networkmanager connects to a WiFi network and then the hostname changes. For instance:
# hostnamectl
Static hostname: localhost
Transient hostname: localhost.localdomain
Icon name: computer-laptop
Chassis: laptop
Machine ID: 7e0a101cd2f0406497a6e4354fc9b3b7
Boot ID: a1424a0995da4e84b1e55b7f79df957e
Operating System: Arch Linux
Kernel: Linux 5.0.0-arch1-1-ARCH
Architecture: x86-64
The shell command hostname now outputs localhost.localdomain instead of localhost.
As a consequence, the KDE lock-screen cannot be unlocked and I cannot start any X applications from the terminal in KDE (or any other desktop). A typical error message is this:
$ gvim
Invalid MIT-MAGIC-COOKIE-1 keyE233: cannot open display
When I issue hostnamectl set-hostname localhost as root, the behavior resumes to normal.
In some other WiFis, the hostname after connect is not localhost.localdomain but something even more random (it seems to be a hostname determined by the WiFi provider, mostly in big corporate networks). Why does a WiFi provider have the power to set my hostname?
Can this be changed somehow?
systemd networkmanager dhcp hostname
edited 5 hours ago
K7AAY
1,1611028
asked 13 hours ago
LaTechneuseLaTechneuse
1061
New contributor
LaTechneuse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I'm running an arch system with KDE4/Plasma, wpa_supplicant, networkmanager, systemd ...
cat /proc/version Linux version 5.0.0-arch1-1-ARCH (builduser@heftig-18825) (gcc version 8.2.1 20181127 (GCC)) #1 SMP
PREEMPT Mon Mar 4 14:11:43 UTC 2019
The content of my /etc/hostname reads localhost.
After boot, the shell command hostname now outputs localhost. More precisely:
# hostnamectl
Static hostname: localhost
Transient hostname: localhost.localdomain
Icon name: computer-laptop
Chassis: laptop
Machine ID: 7e0a101cd2f0406497a6e4354fc9b3b7
Boot ID: a1424a0995da4e84b1e55b7f79df957e
Operating System: Arch Linux
Kernel: Linux 5.0.0-arch1-1-ARCH
Architecture: x86-64
When I turn on WiFi, networkmanager connects to a WiFi network and then the hostname changes. For instance:
# hostnamectl
Static hostname: localhost
Transient hostname: localhost.localdomain
Icon name: computer-laptop
Chassis: laptop
Machine ID: 7e0a101cd2f0406497a6e4354fc9b3b7
Boot ID: a1424a0995da4e84b1e55b7f79df957e
Operating System: Arch Linux
Kernel: Linux 5.0.0-arch1-1-ARCH
Architecture: x86-64
The shell command hostname now outputs localhost.localdomain instead of localhost.
As a consequence, the KDE lock-screen cannot be unlocked and I cannot start any X applications from the terminal in KDE (or any other desktop). A typical error message is this:
$ gvim
Invalid MIT-MAGIC-COOKIE-1 keyE233: cannot open display
When I issue hostnamectl set-hostname localhost as root, the behavior resumes to normal.
In some other WiFis, the hostname after connect is not localhost.localdomain but something even more random (it seems to be a hostname determined by the WiFi provider, mostly in big corporate networks). Why does a WiFi provider have the power to set my hostname?
Can this be changed somehow?
systemd networkmanager dhcp hostname
edited 5 hours ago
K7AAY
1,1611028
asked 13 hours ago
LaTechneuseLaTechneuse
1061
New contributor
LaTechneuse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
That is a DHCP "feature" and not from Wifi per se. Depending on the DHCP daemon, some of those configurations can be ignored. TDLR It is a feature, not a bug. But it is not supposed to interfere with X.
– Rui F Ribeiro
13 hours ago
add a comment |
I'm running an arch system with KDE4/Plasma, wpa_supplicant, networkmanager, systemd ...
cat /proc/version Linux version 5.0.0-arch1-1-ARCH (builduser@heftig-18825) (gcc version 8.2.1 20181127 (GCC)) #1 SMP
PREEMPT Mon Mar 4 14:11:43 UTC 2019
The content of my /etc/hostname reads localhost.
After boot, the shell command hostname now outputs localhost. More precisely:
# hostnamectl
Static hostname: localhost
Transient hostname: localhost.localdomain
Icon name: computer-laptop
Chassis: laptop
Machine ID: 7e0a101cd2f0406497a6e4354fc9b3b7
Boot ID: a1424a0995da4e84b1e55b7f79df957e
Operating System: Arch Linux
Kernel: Linux 5.0.0-arch1-1-ARCH
Architecture: x86-64
When I turn on WiFi, networkmanager connects to a WiFi network and then the hostname changes. For instance:
# hostnamectl
Static hostname: localhost
Transient hostname: localhost.localdomain
Icon name: computer-laptop
Chassis: laptop
Machine ID: 7e0a101cd2f0406497a6e4354fc9b3b7
Boot ID: a1424a0995da4e84b1e55b7f79df957e
Operating System: Arch Linux
Kernel: Linux 5.0.0-arch1-1-ARCH
Architecture: x86-64
The shell command hostname now outputs localhost.localdomain instead of localhost.
As a consequence, the KDE lock-screen cannot be unlocked and I cannot start any X applications from the terminal in KDE (or any other desktop). A typical error message is this:
$ gvim
Invalid MIT-MAGIC-COOKIE-1 keyE233: cannot open display
When I issue hostnamectl set-hostname localhost as root, the behavior resumes to normal.
In some other WiFis, the hostname after connect is not localhost.localdomain but something even more random (it seems to be a hostname determined by the WiFi provider, mostly in big corporate networks). Why does a WiFi provider have the power to set my hostname?
Can this be changed somehow?
systemd networkmanager dhcp hostname
edited 5 hours ago
K7AAY
1,1611028
asked 13 hours ago
LaTechneuseLaTechneuse
1061
New contributor
LaTechneuse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I'm running an arch system with KDE4/Plasma, wpa_supplicant, networkmanager, systemd ...
cat /proc/version Linux version 5.0.0-arch1-1-ARCH (builduser@heftig-18825) (gcc version 8.2.1 20181127 (GCC)) #1 SMP
PREEMPT Mon Mar 4 14:11:43 UTC 2019
The content of my /etc/hostname reads localhost.
After boot, the shell command hostname now outputs localhost. More precisely:
# hostnamectl
Static hostname: localhost
Transient hostname: localhost.localdomain
Icon name: computer-laptop
Chassis: laptop
Machine ID: 7e0a101cd2f0406497a6e4354fc9b3b7
Boot ID: a1424a0995da4e84b1e55b7f79df957e
Operating System: Arch Linux
Kernel: Linux 5.0.0-arch1-1-ARCH
Architecture: x86-64
When I turn on WiFi, networkmanager connects to a WiFi network and then the hostname changes. For instance:
# hostnamectl
Static hostname: localhost
Transient hostname: localhost.localdomain
Icon name: computer-laptop
Chassis: laptop
Machine ID: 7e0a101cd2f0406497a6e4354fc9b3b7
Boot ID: a1424a0995da4e84b1e55b7f79df957e
Operating System: Arch Linux
Kernel: Linux 5.0.0-arch1-1-ARCH
Architecture: x86-64
The shell command hostname now outputs localhost.localdomain instead of localhost.
As a consequence, the KDE lock-screen cannot be unlocked and I cannot start any X applications from the terminal in KDE (or any other desktop). A typical error message is this:
$ gvim
Invalid MIT-MAGIC-COOKIE-1 keyE233: cannot open display
When I issue hostnamectl set-hostname localhost as root, the behavior resumes to normal.
In some other WiFis, the hostname after connect is not localhost.localdomain but something even more random (it seems to be a hostname determined by the WiFi provider, mostly in big corporate networks). Why does a WiFi provider have the power to set my hostname?
Can this be changed somehow?
systemd networkmanager dhcp hostname
systemd networkmanager dhcp hostname
edited 5 hours ago
K7AAY
1,1611028
asked 13 hours ago
LaTechneuseLaTechneuse
1061
New contributor
LaTechneuse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 5 hours ago
K7AAY
1,1611028
asked 13 hours ago
LaTechneuseLaTechneuse
1061
New contributor
LaTechneuse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 5 hours ago
K7AAY
1,1611028
edited 5 hours ago
K7AAY
1,1611028
edited 5 hours ago
K7AAY
1,1611028
1,1611028
asked 13 hours ago
LaTechneuseLaTechneuse
1061
New contributor
LaTechneuse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 13 hours ago
LaTechneuseLaTechneuse
1061
asked 13 hours ago
LaTechneuseLaTechneuse
1061
1061
New contributor
LaTechneuse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
LaTechneuse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
LaTechneuse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
That is a DHCP "feature" and not from Wifi per se. Depending on the DHCP daemon, some of those configurations can be ignored. TDLR It is a feature, not a bug. But it is not supposed to interfere with X.
– Rui F Ribeiro
13 hours ago
add a comment |
1
That is a DHCP "feature" and not from Wifi per se. Depending on the DHCP daemon, some of those configurations can be ignored. TDLR It is a feature, not a bug. But it is not supposed to interfere with X.
– Rui F Ribeiro
13 hours ago
1
1
That is a DHCP "feature" and not from Wifi per se. Depending on the DHCP daemon, some of those configurations can be ignored. TDLR It is a feature, not a bug. But it is not supposed to interfere with X.
– Rui F Ribeiro
13 hours ago
That is a DHCP "feature" and not from Wifi per se. Depending on the DHCP daemon, some of those configurations can be ignored. TDLR It is a feature, not a bug. But it is not supposed to interfere with X.
– Rui F Ribeiro
13 hours ago
add a comment |
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That is a DHCP "feature" and not from Wifi per se. Depending on the DHCP daemon, some of those configurations can be ignored. TDLR It is a feature, not a bug. But it is not supposed to interfere with X.
– Rui F Ribeiro
13 hours ago