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View Full Version : [ubuntu] DHCP Issue



Keymaster
March 11th, 2009, 02:58 PM
I have 3 IBM eServers that randomly restart the networking interface as DHCP despite the fact that they have static IPs in /etc/network/interfaces

Here is a sample of one of the /etc/network/interfaces files (they are all the same except +1 to the last octet):


# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth1
iface eth1 inet static
address 172.25.0.173
netmask 255.255.255.0
gateway 172.25.0.1

Here is a list of installed packages:


Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-f/Unpacked/Failed-cfg/Half-inst/t-aWait/T-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name Version Description
+++-=====================================-=====================================-============================================
ii adduser 3.105ubuntu1 add and remove users and groups
ii apparmor 2.1+1075-0ubuntu9.1 User-space parser utility for AppArmor
ii apparmor-utils 2.1+1075-0ubuntu9.1 Utilities for controlling AppArmor
ii apt 0.7.9ubuntu17.1 Advanced front-end for dpkg
ii apt-utils 0.7.9ubuntu17.1 APT utility programs
ii aptitude 0.4.9-2ubuntu5 terminal-based package manager
ii at 3.1.10ubuntu4 Delayed job execution and batch processing
ii base-files 4.0.1ubuntu5.8.04.4 Debian base system miscellaneous files
ii base-passwd 3.5.16 Debian base system master password and group
ii bash 3.2-0ubuntu18 The GNU Bourne Again SHell
ii bash-completion 20060301-3ubuntu3 programmable completion for the bash shell
ii belocs-locales-bin 2.4-2.2ubuntu7 tools for compiling locale data files
ii bind9-host 1:9.4.2.dfsg.P2-2ubuntu0.1 Version of 'host' bundled with BIND 9.X
ii bsdmainutils 6.1.10ubuntu2 collection of more utilities from FreeBSD
ii bsdutils 1:2.13.1-5ubuntu3 Basic utilities from 4.4BSD-Lite
ii busybox-initramfs 1:1.1.3-5ubuntu12 Standalone shell setup for initramfs
ii bzip2 1.0.4-2ubuntu4 high-quality block-sorting file compressor -
ii command-not-found 0.2.17ubuntu1 Suggest installation of packages in interact
ii command-not-found-data 0.2.17ubuntu1 Set of data files for command-not-found.
ii console-setup 1.21ubuntu9 Set up the font and the keyboard on the cons
ii console-terminus 4.20-6 Fixed-width fonts for fast reading on the Li
ii console-tools 1:0.2.3dbs-65ubuntu7 Linux console and font utilities
ii coreutils 6.10-3ubuntu2 The GNU core utilities
ii cpio 2.9-6ubuntu1 GNU cpio -- a program to manage archives of
ii cpp 4:4.2.3-1ubuntu6 The GNU C preprocessor (cpp)
ii cpp-4.2 4.2.4-1ubuntu3 The GNU C preprocessor
ii cron 3.0pl1-100ubuntu2 management of regular background processing
ii dash 0.5.4-8ubuntu1 POSIX-compliant shell
ii debconf 1.5.20 Debian configuration management system
ii debconf-i18n 1.5.20 full internationalization support for debcon
ii debianutils 2.28.2-0ubuntu1 Miscellaneous utilities specific to Debian
ii dhcp3-client 3.0.6.dfsg-1ubuntu9 DHCP client
ii dhcp3-common 3.0.6.dfsg-1ubuntu9 common files used by all the dhcp3* packages
ii diff 2.8.1-12ubuntu1 File comparison utilities
ii dmidecode 2.9-1ubuntu1 Dump Desktop Management Interface data
ii dnsutils 1:9.4.2.dfsg.P2-2ubuntu0.1 Clients provided with BIND
ii dosfstools 2.11-2.3ubuntu1 Utilities to create and check MS-DOS FAT fil
ii dpkg 1.14.16.6ubuntu4 package maintenance system for Debian
ii e2fslibs 1.40.8-2ubuntu2 ext2 filesystem libraries
ii e2fsprogs 1.40.8-2ubuntu2 ext2 file system utilities and libraries
ii ed 0.7-1ubuntu1 The classic unix line editor
ii eject 2.1.5-6ubuntu1 ejects CDs and operates CD-Changers under Li
ii ethtool 6-0 display or change ethernet card settings
ii fdutils 5.5-20060227-1.1 Linux floppy utilities
ii file 4.21-3ubuntu1 Determines file type using "magic" numbers
ii findutils 4.2.32-1ubuntu2 utilities for finding files--find, xargs
ii friendly-recovery 0.1.2 Make recovery more user-friendly
ii ftp 0.17-16build1 The FTP client
ii fuse-utils 2.7.2-1ubuntu2 Filesystem in USErspace (utilities)
ii gcc-4.2-base 4.2.4-1ubuntu3 The GNU Compiler Collection (base package)
ii gettext-base 0.17-2ubuntu1 GNU Internationalization utilities for the b
ii gnupg 1.4.6-2ubuntu5 GNU privacy guard - a free PGP replacement
ii gpgv 1.4.6-2ubuntu5 GNU privacy guard - signature verification t
ii grep 2.5.3~dfsg-3 GNU grep, egrep and fgrep
ii groff-base 1.18.1.1-16 GNU troff text-formatting system (base syste
ii grub 0.97-29ubuntu21.1 GRand Unified Bootloader
ii gzip 1.3.12-3.2 The GNU compression utility
ii hdparm 8.6-1ubuntu1 tune hard disk parameters for high performan
ii hostname 2.94 utility to set/show the host name or domain
ii ifupdown 0.6.8ubuntu8 high level tools to configure network interf
ii info 4.11.dfsg.1-4 Standalone GNU Info documentation browser
ii initramfs-tools 0.85eubuntu39.3 tools for generating an initramfs
ii initscripts 2.86.ds1-14.1ubuntu45 Scripts for initializing and shutting down t
ii inputattach 1.23-0ubuntu2 utility to attach serial devices to the inpu
ii installation-report 2.31ubuntu1 system installation report
ii iproute 20071016-2ubuntu2 Professional tools to control the networking
ii iptables 1.3.8.0debian1-1ubuntu2 administration tools for packet filtering an
ii iputils-arping 3:20071127-1 Tool to send ICMP echo requests to an ARP ad
ii iputils-ping 3:20071127-1 Tools to test the reachability of network ho
ii iputils-tracepath 3:20071127-1 Tools to trace the network path to a remote
ii iscsitarget 0.4.15-5ubuntu2 iSCSI Enterprise Target userland tools
ii klibc-utils 1.5.7-4ubuntu4 small statically-linked utilities built with
ii klogd 1.5-1ubuntu1 Kernel Logging Daemon
ii laptop-detect 0.13.2ubuntu1 attempt to detect a laptop
ii less 418-1 Pager program similar to more
ii libacl1 2.2.45-1 Access control list shared library
ii libatm1 2.4.1-17.1build1 shared library for ATM (Asynchronous Transfe
ii libattr1 1:2.4.39-1 Extended attribute shared library
ii libauthen-pam-perl 0.16-1 Perl interface to PAM library
ii libbind9-30 1:9.4.2.dfsg.P2-2ubuntu0.1 BIND9 Shared Library used by BIND
ii libblkid1 1.40.8-2ubuntu2 block device id library
ii libbz2-1.0 1.0.4-2ubuntu4 high-quality block-sorting file compressor l
ii libc6 2.7-10ubuntu4 GNU C Library: Shared libraries
ii libc6-i686 2.7-10ubuntu4 GNU C Library: Shared libraries [i686 optimi
ii libcap1 1:1.10-14build1 support for getting/setting POSIX.1e capabil
ii libck-connector0 0.2.3-3ubuntu5 ConsoleKit libraries
ii libcomerr2 1.40.8-2ubuntu2 common error description library
ii libconsole 1:0.2.3dbs-65ubuntu7 Shared libraries for Linux console and font
ii libcurl3-gnutls 7.18.0-1ubuntu2 Multi-protocol file transfer library (GnuTLS
ii libcwidget3 0.5.8-1ubuntu1 high-level terminal interface library for C+
ii libdb4.6 4.6.21-6ubuntu1 Berkeley v4.6 Database Libraries [runtime]
ii libdbus-1-3 1.1.20-1ubuntu3.2 simple interprocess messaging system
ii libdevmapper1.02.1 2:1.02.20-2ubuntu2 The Linux Kernel Device Mapper userspace lib
ii libdns35 1:9.4.2.dfsg.P2-2ubuntu0.1 DNS Shared Library used by BIND
ii libedit2 2.9.cvs.20050518-4 BSD editline and history libraries
ii libelfg0 0.8.6-4 an ELF object file access library
ii libexpat1 2.0.1-0ubuntu1 XML parsing C library - runtime library
ii libfribidi0 0.10.9-1 Free Implementation of the Unicode BiDi algo
ii libfuse2 2.7.2-1ubuntu2 Filesystem in USErspace library
ii libgc1c2 1:6.8-1.1 conservative garbage collector for C and C++
ii libgcc1 1:4.2.4-1ubuntu3 GCC support library
ii libgcrypt11 1.2.4-2ubuntu7 LGPL Crypto library - runtime library
ii libgdbm3 1.8.3-3 GNU dbm database routines (runtime version)
ii libglib2.0-0 2.16.6-0ubuntu1 The GLib library of C routines
ii libgnutls13 2.0.4-1ubuntu2.3 the GNU TLS library - runtime library
ii libgpg-error0 1.4-2ubuntu7 library for common error values and messages
ii libgpmg1 1.19.6-25ubuntu1 General Purpose Mouse - shared library
ii libhtml-parser-perl 3.56-1 A collection of modules that parse HTML text
ii libhtml-tagset-perl 3.10-2 Data tables pertaining to HTML
ii libhtml-tree-perl 3.23-1 represent and create HTML syntax trees
ii libidn11 1.1-1 GNU libidn library, implementation of IETF I
ii libio-pty-perl 1:1.07-1 Perl module for pseudo tty IO
ii libisc35 1:9.4.2.dfsg.P2-2ubuntu0.1 ISC Shared Library used by BIND
ii libisccc30 1:9.4.2.dfsg.P2-2ubuntu0.1 Command Channel Library used by BIND
ii libisccfg30 1:9.4.2.dfsg.P2-2ubuntu0.1 Config File Handling Library used by BIND
ii libiw29 29-1ubuntu2 Wireless tools - library
ii libkeyutils1 1.2-4 Linux Key Management Utilities (library)
ii libklibc 1.5.7-4ubuntu4 minimal libc subset for use with initramfs
ii libkrb53 1.6.dfsg.3~beta1-2ubuntu1 MIT Kerberos runtime libraries
ii libldap-2.4-2 2.4.9-0ubuntu0.8.04.2 OpenLDAP libraries
ii liblocale-gettext-perl 1.05-2ubuntu1 Using libc functions for internationalizatio
ii liblwres30 1:9.4.2.dfsg.P2-2ubuntu0.1 Lightweight Resolver Library used by BIND
ii liblzo2-2 2.02-3 data compression library
ii libmagic1 4.21-3ubuntu1 File type determination library using "magic
ii libmd5-perl 2.03-1 backwards-compatible wrapper for Digest::MD5
ii libncurses5 5.6+20071124-1ubuntu2 Shared libraries for terminal handling
ii libncursesw5 5.6+20071124-1ubuntu2 Shared libraries for terminal handling (wide
ii libnet-ssleay-perl 1.30-1 Perl module for Secure Sockets Layer (SSL)
ii libnewt0.52 0.52.2-11.2ubuntu1 Not Erik's Windowing Toolkit - text mode win
ii libntfs-3g23 1:1.2216-1ubuntu3 ntfs-3g filesystem in userspace (FUSE) libra
ii libopencdk10 0.6.6-1ubuntu1 Open Crypto Development Kit (OpenCDK) (runti
ii libpam-modules 0.99.7.1-5ubuntu6.1 Pluggable Authentication Modules for PAM
ii libpam-runtime 0.99.7.1-5ubuntu6.1 Runtime support for the PAM library
ii libpam0g 0.99.7.1-5ubuntu6.1 Pluggable Authentication Modules library
ii libparted1.7-1 1.7.1-5.1ubuntu9.1 The GNU Parted disk partitioning shared libr
ii libpcap0.8 0.9.8-2 System interface for user-level packet captu
ii libpcre3 7.4-1ubuntu2.1 Perl 5 Compatible Regular Expression Library
ii libpopt0 1.10-3build1 lib for parsing cmdline parameters
ii libreadline5 5.2-3build1 GNU readline and history libraries, run-time
ii librpc-xml-perl 0.59-2 Perl module implementation of XML-RPC
ii libsasl2-2 2.1.22.dfsg1-18ubuntu2 Cyrus SASL - authentication abstraction libr
ii libsasl2-modules 2.1.22.dfsg1-18ubuntu2 Cyrus SASL - pluggable authentication module
ii libselinux1 2.0.55-0ubuntu4 SELinux policy enforcement, run-time librari
ii libsepol1 2.0.20-0ubuntu3 SELinux binary policy, run-time library
ii libsigc++-2.0-0c2a 2.0.17-2ubuntu3 type-safe Signal Framework for C++ - runtime
ii libslang2 2.1.3-2 The S-Lang programming library - runtime ver
ii libsqlite3-0 3.4.2-2 SQLite 3 shared library
ii libss2 1.40.8-2ubuntu2 command-line interface parsing library
ii libssl0.9.8 0.9.8g-4ubuntu3.4 SSL shared libraries
ii libstdc++6 4.2.4-1ubuntu3 The GNU Standard C++ Library v3
ii libsysfs2 2.1.0-4 interface library to sysfs
ii libtasn1-3 1.1-1 Manage ASN.1 structures (runtime)
ii libterm-readkey-perl 2.30-3ubuntu1 A perl module for simple terminal control
ii libtext-charwidth-perl 0.04-4build1 get display widths of characters on the term
ii libtext-iconv-perl 1.4-3 converts between character sets in Perl
ii libtext-wrapi18n-perl 0.06-5 internationalized substitute of Text::Wrap
ii liburi-perl 1.35.dfsg.1-1 Manipulates and accesses URI strings
ii libusb-0.1-4 2:0.1.12-8 userspace USB programming library
ii libuuid1 1.40.8-2ubuntu2 universally unique id library
ii libvolume-id0 117-8 volume identification library
ii libwrap0 7.6.dbs-14 Wietse Venema's TCP wrappers library
ii libwww-perl 5.808-1 WWW client/server library for Perl (aka LWP)
ii libxml-parser-perl 2.34-4.3 Perl module for parsing XML files
ii linux-image-2.6.24-23-server 2.6.24-23.46 Linux kernel image for version 2.6.24 on x86
ii linux-image-server 2.6.24.23.25 Linux kernel image on Server Equipment.
ii linux-server 2.6.24.23.25 Complete Linux kernel on Server Equipment.
ii linux-ubuntu-modules-2.6.24-23-server 2.6.24-23.36 Ubuntu supplied Linux modules for version 2.
ii locales 2.7.9-4 common files for locale support
ii login 1:4.0.18.2-1ubuntu2.2 system login tools
ii logrotate 3.7.1-3ubuntu0.8.04 Log rotation utility
ii lsb-base 3.2-4ubuntu1 Linux Standard Base 3.2 init script function
ii lsb-release 3.2-4ubuntu1 Linux Standard Base version reporting utilit
ii lshw 02.12.01-2ubuntu1.1 information about hardware configuration
ii lsof 4.78.dfsg.1-3 List open files
ii ltrace 0.5-3ubuntu1 Tracks runtime library calls in dynamically
ii lzma 4.43-12ubuntu1 Compression method of 7z format in 7-Zip pro
ii makedev 2.3.1-84ubuntu1 creates device files in /dev
ii man-db 2.5.1-3 on-line manual pager
ii manpages 2.77-1 Manual pages about using a GNU/Linux system
ii mawk 1.3.3-11ubuntu2 a pattern scanning and text processing langu
ii mc 1:4.6.1-8ubuntu1 midnight commander - a powerful file manager
ii mdadm 2.6.3+200709292116+4450e59-3ubuntu3.1 tool to administer Linux MD arrays (software
ii memtest86+ 1.70-3ubuntu1 thorough real-mode memory tester
ii mii-diag 2.11-2 A little tool to manipulate network cards
ii mime-support 3.39-1ubuntu1 MIME files 'mime.types' & 'mailcap', and sup
ii mktemp 1.5-5ubuntu2 Makes unique filenames for temporary files
ii mlocate 0.18-2ubuntu1 quickly find files on the filesystem based o
ii module-init-tools 3.3-pre11-4ubuntu5.8.04.1 tools for managing Linux kernel modules
ii mount 2.13.1-5ubuntu3 Tools for mounting and manipulating filesyst
ii mtr-tiny 0.72-2ubuntu1 Full screen ncurses traceroute tool
ii nano 2.0.7-1ubuntu1 free Pico clone with some new features
ii ncurses-base 5.6+20071124-1ubuntu2 Descriptions of common terminal types
ii ncurses-bin 5.6+20071124-1ubuntu2 Terminal-related programs and man pages
ii net-tools 1.60-19ubuntu1 The NET-3 networking toolkit
ii netbase 4.30ubuntu1 Basic TCP/IP networking system
ii netcat 1.10-36 TCP/IP swiss army knife -- transitional pack
ii netcat-traditional 1.10-36 TCP/IP swiss army knife
ii ntfs-3g 1:1.2216-1ubuntu3 read-write NTFS driver for FUSE
ii ntpdate 1:4.2.4p4+dfsg-3ubuntu2.1 client for setting system time from NTP serv
ii openssh-blacklist 0.1-1ubuntu0.8.04.1 list of blacklisted OpenSSH RSA and DSA keys
ii openssh-client 1:4.7p1-8ubuntu1.2 secure shell client, an rlogin/rsh/rcp repla
ii openssh-server 1:4.7p1-8ubuntu1.2 secure shell server, an rshd replacement
ii openssl 0.9.8g-4ubuntu3.4 Secure Socket Layer (SSL) binary and related
ii parted 1.7.1-5.1ubuntu9.1 The GNU Parted disk partition resizing progr
ii passwd 1:4.0.18.2-1ubuntu2.2 change and administer password and group dat
ii pciutils 1:2.2.4-1.1ubuntu6 Linux PCI Utilities
ii pcmciautils 014-4ubuntu1 PCMCIA utilities for Linux 2.6
ii perl 5.8.8-12ubuntu0.4 Larry Wall's Practical Extraction and Report
ii perl-base 5.8.8-12ubuntu0.4 The Pathologically Eclectic Rubbish Lister
ii perl-modules 5.8.8-12ubuntu0.4 Core Perl modules
ii popularity-contest 1.43ubuntu1 Vote for your favourite packages automatical
ii ppp 2.4.4rel-9ubuntu2 Point-to-Point Protocol (PPP) daemon
ii pppconfig 2.3.17ubuntu1 A text menu based utility for configuring pp
ii pppoeconf 1.17ubuntu1 configures PPPoE/ADSL connections
ii procps 1:3.2.7-5ubuntu3 /proc file system utilities
ii psmisc 22.6-1 Utilities that use the proc filesystem
ii python 2.5.2-0ubuntu1 An interactive high-level object-oriented la
ii python-apt 0.7.4ubuntu7.4 Python interface to libapt-pkg
ii python-central 0.6.7ubuntu0.1 register and build utility for Python packag
ii python-gdbm 2.5.2-0ubuntu2 GNU dbm database support for Python
ii python-gnupginterface 0.3.2-9ubuntu1 Python interface to GnuPG (GPG)
ii python-minimal 2.5.2-0ubuntu1 A minimal subset of the Python language (def
ii python-support 0.7.5ubuntu1 automated rebuilding support for python modu
ii python2.5 2.5.2-2ubuntu4.1 An interactive high-level object-oriented la
ii python2.5-minimal 2.5.2-2ubuntu4.1 A minimal subset of the Python language (ver
ii readline-common 5.2-3build1 GNU readline and history libraries, common f
ii reiserfsprogs 1:3.6.19-6 User-level tools for ReiserFS filesystems
ii rsync 2.6.9-6ubuntu2 fast remote file copy program (like rcp)
ii sed 4.1.5-5 The GNU sed stream editor
ii startup-tasks 0.3.9-2 definitions of essential tasks to run on sta
ii strace 4.5.15-1.1ubuntu1 A system call tracer
ii sudo 1.6.9p10-1ubuntu3.3 Provide limited super user privileges to spe
ii sysklogd 1.5-1ubuntu1 System Logging Daemon
ii system-services 0.3.9-2 definitions of essential system services
ii sysv-rc 2.86.ds1-14.1ubuntu45 System-V-like runlevel change mechanism
ii sysvutils 2.86.ds1-14.1ubuntu45 System-V-like utilities
ii tar 1.19-3 GNU version of the tar archiving utility
ii tasksel 2.70ubuntu5 Tool for selecting tasks for installation on
ii tasksel-data 2.70ubuntu5 Official tasks used for installation of Debi
ii tcpd 7.6.dbs-14 Wietse Venema's TCP wrapper utilities
ii tcpdump 3.9.8-2 A powerful tool for network monitoring and d
ii telnet 0.17-35ubuntu1 The telnet client
ii time 1.7-21build1 The GNU time program for measuring cpu resou
ii tzdata 2008h-0ubuntu0.8.04.1 time zone and daylight-saving time data
ii ubuntu-keyring 2008.03.04 GnuPG keys of the Ubuntu archive
ii ubuntu-minimal 1.102 Minimal core of Ubuntu
ii ubuntu-standard 1.102 The Ubuntu standard system
ii ucf 3.005 Update Configuration File: preserve user cha
ii udev 117-8 rule-based device node and kernel event mana
ii ufw 0.16.2.4 program for managing a netfilter firewall
ii update-inetd 4.27-0.6 inetd.conf updater
ii update-manager-core 1:0.87.30 manage release upgrades
ii upstart 0.3.9-2 event-based init daemon
ii upstart-compat-sysv 0.3.9-2 compatibility for System-V-like init
ii upstart-logd 0.3.9-2 boot logging daemon
ii usbutils 0.73-5ubuntu2 Linux USB utilities
ii util-linux 2.13.1-5ubuntu3 Miscellaneous system utilities
ii util-linux-locales 2.13.1-5ubuntu3 Locales files for util-linux
ii uuid-runtime 1.40.8-2ubuntu2 universally unique id library
ii vim-common 1:7.1-138+1ubuntu3.1 Vi IMproved - Common files
ii vim-tiny 1:7.1-138+1ubuntu3.1 Vi IMproved - enhanced vi editor - compact v
ii w3m 0.5.1-5.1ubuntu1 WWW browsable pager with excellent tables/fr
ii webmin 1.450 A web-based administration interface for Uni
ii wget 1.10.2-3ubuntu1 retrieves files from the web
ii whiptail 0.52.2-11.2ubuntu1 Displays user-friendly dialog boxes from she
ii wireless-tools 29-1ubuntu2 Tools for manipulating Linux Wireless Extens
ii wpasupplicant 0.6.0+0.5.8-0ubuntu2 Client support for WPA and WPA2 (IEEE 802.11
ii xkb-data 1.1~cvs.20080104.1-1ubuntu8 X Keyboard Extension (XKB) configuration dat
ii zlib1g 1:1.2.3.3.dfsg-7ubuntu1 compression library - runtime

netztier
March 11th, 2009, 04:09 PM
[CODE]
ii dhcp3-client 3.0.6.dfsg 1ubuntu9 DHCP client


My server also has dhcp3-client installed, but it's not active.

Is it running on your machine?


user@server~$: ps -eaf | grep dhcp

As a next step, we should then investigate why it's running, but let's leave that for later.

regards

Marc

khelben1979
March 11th, 2009, 04:22 PM
Take a look at what services you have running in your startup script directory:


cd /etc/init.d/

Then if you see something which shouldn't be there you can always uninstall this from the system.


man [name of the program]
to read about what the scripts does.

Keymaster
March 11th, 2009, 04:47 PM
ps aux | grep "dhcp" yields the following results:


ahrem@iscsi1:~$ ps aux | grep "dhcp"
dhcp 4151 0.0 0.0 2436 832 ? S<s Mar09 0:00 dhclient3 -e IF_METRIC=100 -pf /var/run/dhclient.eth1.pid -lf /var/lib/dhcp3/dhclient.eth1.leases eth1
ahrem 23407 0.0 0.0 3008 776 pts/2 S+ 11:45 0:00 grep dhcp
ahrem@iscsi1:~$



Could this be the issue? These particular IBM servers are quite glitchy with every OS I've tried on them.

puppywhacker
March 11th, 2009, 05:00 PM
the dhcpclient shouldn't be running if you only want static addresses. you can kill it with

kill 4151


to reset / reconfigure the network interface you can than restart the network
DONT DO THIS IF YOU ARE CONNECTED OVER THE NETWORK

/etc/init.d/networking restart

The dhclient is started during startup at the INIT. you can find the script here

grep dhclient /etc/init.d/*

Keymaster
March 11th, 2009, 05:23 PM
I killed the dhcp process and set the bootup to no longer start dhcdbd. Is this all I had to do? The static IPs are assigned, but the problem was that they reset to dhcp around 7pm for no reason.

The description to dhcdbd was :
"dhcdbd provides a D-DBus interface to dhclient,"

Is that the correct process to stop from starting?

netztier
March 11th, 2009, 11:38 PM
The description to dhcdbd was :
"dhcdbd provides a D-DBus interface to dhclient,"


Hmm. From the extended description:


Description: D-Bus interface to the ISC DHCP client
dhcdbd provides a D-Bus interface to dhclient, the DHCP client from ISC,
so applications such as NetworkManager can query and control dhclient.
This allows an application-neutral interface for such operations


D-Bus? NetworkManager?

Er... You wouldn't happen to have a GUI installed on that server at some point of time (you know, "sudo aptitude install ubuntu-desktop" and the likes), so that NetworkManager got installed as well?

regards

Marc

Keymaster
March 11th, 2009, 11:40 PM
No I don't have a GUI on it.

netztier
March 11th, 2009, 11:47 PM
No I don't have a GUI on it.

okay. Is there any other tool you might've installed that promised to make network configuration easier by some scripting magic?

If you reboot now, is dhclient3 still running?

The fact that it resets at some seemling random point in time has to do with lease duration: After half of the lease time is expired, the dhcp client will try to renew it's IP address - and if it gets one, your interface will be reconfigured. The fact that you manually configure it for static adressing will not necessarily stop the dhcp client from trying to renew the lease a few hours later. Stopping/deactivating the dhcp client certainly will.

regards

Marc

Keymaster
March 12th, 2009, 12:02 AM
well I killed the client and set it so that dhcdbd won't start up automatically with reboot.