Bug#473828: hosts: Unreasonable impact of misconfigured /etc/hosts file
On 01-Apr-08, 17:22 (CDT), Ulrik Sverdrup <[EMAIL PROTECTED]> wrote: > > When I encountered this, described briefly but a bit more in #473827, > I didn't see anything as long as I had network/internet access. > However, when totally offline, the bug triggered. Thus you could try > to pull out the network cable and try again. I'll have to come up with > a practical restore method before trying to reproduce it myself > though. Pulling the cable on eth0: no change - error message, but sudo works Trying 'ifdown lo': now sudo has wait for a timeout of some sort, but eventually it still printed error, and worked. (All still with no resolv.conf or hostname file, and hosts with no IPv4 info.) Steve -- Steve Greenland The irony is that Bill Gates claims to be making a stable operating system and Linus Torvalds claims to be trying to take over the world. -- seen on the net -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Bug#473828: hosts: Unreasonable impact of misconfigured /etc/hosts file
2008/4/2, Steve Greenland <[EMAIL PROTECTED]>: > On 01-Apr-08, 16:13 (CDT), Ulrik Sverdrup <[EMAIL PROTECTED]> wrote: > > Package: general > > Severity: normal > > > > The impact of a misconfigured /etc/hosts file can be quite grave. > > > > Prime example: If the hostname is not in /etc/hosts, sudo does not run > > which means that the problem can not be resolved without direct root > > login or single user mode. See also bug #473827 > > > I can't duplicate this, on a up to date lenny system. Even > commenting-out all the IP4 addresses didn't cause a problem. > > Removing /etc/hostname *and* /etc/resolv.conf causes: > > $ sudo -s > sudo: unable to resolve host orca > [EMAIL PROTECTED]:~# > > But it still works. > > Steve When I encountered this, described briefly but a bit more in #473827, I didn't see anything as long as I had network/internet access. However, when totally offline, the bug triggered. Thus you could try to pull out the network cable and try again. I'll have to come up with a practical restore method before trying to reproduce it myself though. Ulrik -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Bug#473828: hosts: Unreasonable impact of misconfigured /etc/hosts file
On 01-Apr-08, 16:13 (CDT), Ulrik Sverdrup <[EMAIL PROTECTED]> wrote: > Package: general > Severity: normal > > The impact of a misconfigured /etc/hosts file can be quite grave. > > Prime example: If the hostname is not in /etc/hosts, sudo does not run > which means that the problem can not be resolved without direct root > login or single user mode. See also bug #473827 I can't duplicate this, on a up to date lenny system. Even commenting-out all the IP4 addresses didn't cause a problem. Removing /etc/hostname *and* /etc/resolv.conf causes: $ sudo -s sudo: unable to resolve host orca [EMAIL PROTECTED]:~# But it still works. Steve -- Steve Greenland The irony is that Bill Gates claims to be making a stable operating system and Linus Torvalds claims to be trying to take over the world. -- seen on the net -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Bug#473828: hosts: Unreasonable impact of misconfigured /etc/hosts file
Package: general Severity: normal The impact of a misconfigured /etc/hosts file can be quite grave. Prime example: If the hostname is not in /etc/hosts, sudo does not run which means that the problem can not be resolved without direct root login or single user mode. See also bug #473827 Also, misconfiguration can lead to that the local hostname is resolved on the network, causing latency whenever it is requested, such as when launching applications, sudo, etc etc. This effect should be minimized. -- System Information: Debian Release: lenny/sid APT prefers testing APT policy: (500, 'testing') Architecture: powerpc (ppc) Kernel: Linux 2.6.22-3-powerpc Locale: LANG=sv_SE.UTF-8, LC_CTYPE=sv_SE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
