Debian Configuration :: No Net After Changing DHCP Server Other OS Works?

Dec 15, 2010

I just put a pfSense firewall inbetween my ADSL router and my LAN. It's configured to have a cachng DNS server and a DHCP server. Among other things. For reasons beyond this post the address range served by DHCP changed from 10.0.0.x to 192.168.1.x. The new DHCP server gives 192.168.1.1 as gateway and DNS server name and not the public IP addresses of our internet provider.

After reconnecting our client machines everything worked just fine on the win-xp boxes, but the Debian Squeeze servers and Ubuntu 10.4 clients all started to get network timeouts. If I ping public websites it works but browsing to the same servers fails. Other services like POP3 and IMAP also fails. All machines use WiFi to connect and the access point is the same as before.

What could it be that make the debian boxes fail? My laptop runs squeeze too and also fails. But when connecting to various other access points at hotels and such I do not get this problem.

Another weird thing is that the debian server running virtualbox cannot do things online but the virtual windows boxes running on this machine can. Weird! Where should I start looking? How is networking/dhcp clients on Debian different from Windows XP?

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Debian Configuration :: How To Configure A DNS / DHCP / Directory Server

Jan 17, 2016

Setup a DNS/DHCP/Directory server on Debian? I would like to configure the things in Debian so that can join Linux and Windows(if possible as m not sure yet) clients to the directory server. Any links to setup both Forward and Reverse lookup zone in the environment.

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Debian Configuration :: Use Specific Address For Dhcp Server?

Apr 27, 2011

I'm running gnome desktop on squeeze system. When I boot my system seems to be using my internet modem as its dhcp server. The rest of the machines on my lan are correctly using my router for that purpose. As a result, what happens then is that my debian machine frequently gets a duplicate ip address assigned to it. I would like to specify to my debian computer that I want it to use the specific fixed ip address of my router for dhcp purposes.

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Debian Configuration :: DHCP Server With External Dns Name Server

Jun 14, 2011

I wanted to setup my server as a router/gateway just for educational purposes and also when it succeeded i will keep the gateway and place it on the front line right after my modem.

My current setup as it is now :

The GATEWAY/ROUTER will be doing the main work to act as a dhcp server and firewall.

Now my setup as it is now :

So now what i ment to do was :

Let the clients connect to the gateway via ETH1 and all the stuff being router to ETH0 which is the NIC that is connected to the internet.

But now i have two huge problems :

1. The DHCP configuration seems to be fine the client machines get their ip adresses and /etc/resolve.conf looks fine to. But somehow the GATEWAY/ROUTER wont let me use the specified external DNs server so i cant do anything on these machines.

2. The firewall script [url] at line 27 should be DROP but if i use this line of code the GATEWAY/ROUTER cannot use his dns server settings so when i try to browse the internet or ping a machine outside my local network it would came up with nothing.

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Debian Configuration :: DHCP Server In Squeeze Appears Broken?

Dec 3, 2010

Alright, I edited "/etc/default/isc-dhcp-server" and set "eth0" as the only thing listed for interfaces. I also have the code below in "/etc/dhcp/dhcp3/dhcpd.conf" and I even copied it to "/etc/dhcp/dhcpd.conf" for good measure, and I can't get the DHCP server to start. As an intermediate to advanced user, I am under the high assumption that it is broken since everything in the docs has been set. I have googled for two days and cannot find a fix, so before I report it as a broken package, would somebody with more experience with the package chime in?

Configuration file:
subnet 10.0.0.0 netmask 255.255.255.0 {
option domain-name-servers 10.0.0.254;
option broadcast-address 10.0.0.255;

[Code].....

I hid my wireless setup because it contains my WiFi network info including key. This box is routing, doing DNS resolution, and firewalling just fine. I just cannot get the friggin' DHCP server to start no matter what I try.

Oh, and is it safe to delete "/etc/dhcp" or "/etc/dhcp3"? They appear to be duplicates of each other...

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Debian Configuration :: Setting Up A VPN & DHCP Server - Connect And Share The Internet

Aug 24, 2010

I have a home Debian server running, and i would like to set it up as a gateway. I have 2 networkcards in it. So internet comes from the modem and on the other card i want to setup a dhcp server and it has to share the internet. But i want it also to connect to a vpn and share the internet of the vpn.. Is that possible?

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Debian Configuration :: Changing The Domain Name Of A Server?

Oct 13, 2010

I'm having problems when trying to view my web site from inside my firewall and router. The web server works fine and will resolve from IP address on the local network and port forwarding works for external connections. The problem stems from when I orignally setup the server; I left the domain name field blank when going through the installation process.

I've had a look at the man pages and had a search on Google but cannot find an answer that works. I've changed a few things in '/etc/hosts' and '/etc/networks' but when I make changes they have no effect on the problem. My web site is on a no-ip domain which is [URL]..

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Server :: Slackware 13.0 DHCP Server - Configuration File Errors Encountered?

Nov 17, 2010

I'm trying to set up a PXE boot server on a PC running Slackware 13.0 using the default apps and info shipped with that Slackware version but to no avail...Carefully reading the Slackware 13.0 README_PXE I've put together this dhcpd.conf file:

# dhcpd.conf
#
# Configuration file for ISC dhcpd (see 'man dhcpd.conf')

[code]....

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Debian Configuration :: Internet With Isc-dhcp-serve

Jul 27, 2015

I need to shear internet i use isc-dhcp-serve and it work but internet doesn't work i have triad so many commends but still networking ... My setting is eth0 - wan eth1 -local

iface eth1 inet static
address 192.168.42.6
netmask 255.255.255.0

dhcp

authoritative;

subnet 192.168.42.0 netmask 255.255.255.0 {
range 192.168.42.10 192.168.42.50;
option broadcast-address 192.168.42.255;
option routers 192.168.42.1;
default-lease-time 600;
max-lease-time 7200;
option domain-name "local";
option domain-name-servers 8.8.8.8, 8.8.4.4;
}

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Debian Configuration :: VM Is Assigned IP By DHCP At Reconnect

Oct 1, 2015

I'm running jessie on virtualbox.

I set staticIP at /etc/network/interfaces.

When I stop/start vm(not restart), dhclient becomes up and ip is assigned by dhcp. Why?
--------------------------------
yoshi@vbox:~$ uname -a
Linux vbox 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1 (2015-05-24) x86_64 GNU/Linux
--------------------------------
yoshi@vbox:~$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

[Code] ....

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Debian Configuration :: DHCP For Multiple VLANs

Feb 7, 2016

I'm trying to setup a DHCP server that serves several different VLANs, we have 5 in total. Our network is working correctly, with static IPs, we're able to ping across without any issues.

When I connect my debian box to an interface on VLAN5, statically assign an address in the correct range, it works. Similarly with all other VLANs.

To configure this box as a DHCP, I set one of the ports on the switch as trunk, connect that to the debian box to allow all VLAN traffic to reach my debian box.

I setup DHCP following the steps on [URL] ....

Then I configured different VLANs by following the steps on [URL] .....

However, with the vlans setup, I am unable to ping anything. This is essentially what I did.

Code: Select allSet the port on the switch to trunk with 802.1 encapsulation
disable eth0
vconfig add eth0 5 # to add vlan 5
ifconfig eth0.5 192.168.5.254 netmask 255.255.255.0 up
vconfig add eth0 5 # to add vlan 10
ifconfig eth0.5 192.168.10.254 netmask 255.255.255.0 up

[Code] ....

I do not know why I am unable to get any connectivity through my VLAN interfaces.

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Debian Configuration :: How To Setup DHCP On Computer

Mar 11, 2010

using Debian 5.0, GNOME desktop.my DSL service was to be connected today.the problem is my DSL light keeps blinking.ethernet light is solid.how do i setup my DHCP on my computer

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Debian Configuration :: DHCP And The Desktop Responsiveness?

Aug 15, 2010

I am connected to a network using any interface (eth0, eth1, or wlan0) that if my ip address was given out (dhcp) that my desktop responsiveness gets worse. Specifically the mouse has a sort of "sticky" feeling. I mean by that that I'm moving the physical mouse and the cursor is getting stuck here or there on the screen. It is extremely annoying. Here is my config file:

beethoven:~$ cat /etc/dhcp3/dhclient.conf
# Configuration file for /sbin/dhclient, which is included in Debian's
#dhcp3-client package.
#
# This is a sample configuration file for dhclient. See dhclient.conf's

[code]....

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Debian Configuration :: Host Name Not Broadcast To DHCP

Dec 21, 2010

I have setup a few machines within my house. The Debian Squeeze machines do not provide a host name in the DHCP client list on my router. Strangely, my Ubuntu, Android, and Blackberry machines do show host names. I have noticed the same behavior when wirelessly tethering my Debian laptop to my Android phone (which also uses DHCP). Is there something I need to enable to have the name show up on the router?

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Debian Configuration :: Eth0 Keeps Reverting To DHCP?

Feb 19, 2011

Freshly installed Lenny system. Edited /etc/network/interfaces to use a static IP:

# The loopback network interface
auto lo
iface lo inet loopback

[code]...

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Debian Configuration :: Can't Find Dhcp Initscript On 6

Mar 4, 2011

I have installed dhcp3-server via apt-get install dhcp3-server, but I couldn't find any initscript. So, how can I start and stop it properly ?

For now , I have added "dhcpd" line in rc.local.

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Debian Configuration :: Bind - DHCP And DDNS ?

Jul 14, 2011

DHCP I have working, so is BIND.

I'm trying to get dynamic dns working and am having issues

I suspect this maybe a chroot issue.

I've tried to follow the chroot advise within the wiki for Bind but no joy.

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Debian Configuration :: Static IP Switching Back To DHCP

Jul 15, 2010

I'm new to the forum and actually to Debian as well. Have been running Ubuntu for the past few years. Just setup a small Dell laptop to use as a Squeezebox and Print server. It's been up 6 days without a hitch as far as serving music to the squeezebox and printing. The problem is that it loses it's static IP, so as long as I look it up and change the radio Squeezebox and printer definitions around on the clients everything keeps working.

Does anyone have any ideas?If the connection drops for some reason and the system has to re-initialize the connection, shouldn't it use the /etc/network/interfaces file and get back to the static IP that it is configured for?If anyone has any ideas of why this could be happening or have a solution, I would really appreciate the help.

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Debian Configuration :: Slow Boot Waiting For DHCP On Wire?

Mar 23, 2011

Up until very recently I've had a wired network, and at boot I'd see messages about DHCPREQUEST and DHCPOFFER and stuff as it set up the wired network.

Now I've just got wireless working instead, but it still tries to use DHCP on the no-longer-existing wired network. So it says "DHCPDISCOVER on eth0..." and waits for a bit, then again and waits again, and all the time the boot is waiting for a reply to its DHCP requests and it's not going to get one. It doesn't seem to do any harm, because once it's given up and proceeded with the boot then the wireless does seem to work fine, but I'd like to speed up the boot a little by cutting out this needless waiting. Has anyone got an idea how I can stop it? I tried in Preferences-Network connections and in Administration-Network, and in System Tools-Network tools, and also from the network icon in the task bar, but I can't find anything which lets me configure the wired network eth0 or disable it or disable the DHCP.

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Debian Configuration :: How To Assign Specific Local IPs In Home LAN Using DHCP?

Apr 29, 2011

I have some beginner questions about DHCP, Avahi, and configuring a small home LAN.Suppose I have a dynamic IP address assigned by my ISP, which requires DHCP be enabled in my dsl modem/router/"firewall" [sic]. Suppose for simplicity I have just one PC behind the dsl modem.I think "enabling DHCP" in the modem/router means that a DHCP client runs on the router, which communicates with a DHCP server run by my ISP when I boot up a PC on my LAN. Is that guess correct? Can I get DHCP to assign a particular local IP, say 192.168.1.10 (which is not the one taken by the router--- for this discussion, let's say that is 192.168.1.0) to my PC each time I boot it up?

Now suppose I want to build a stand-alone firewall, so that my LAN will have the firewall and the first PC behind the modem, with the first PC virtually behind the firewall. By default, I think these will both have DHCP clients running which I need to configure properly. The firewall should also have a DHCP server which should control how local IP addresses are assigned, correct? I should try to arrange that the LAN has only DHCP server, only one NTP timeserver, only one DNS nameserver, correct?My first PC seems to have installed an autorun client called Avahi, which performs DNS multicast services and incorporates something called zeroconf which seems to have something to do with remote desktops, which I don't need and which is a potential security hazard. But it seems that Avahi is an intrinsic part of the KDE desktop and cannot be removed. Just want to be sure that Avahi can coexist comfortably with dhcp3-client, which is also installed on that PC. They perform different tasks, correct?If I can get the stand-alone firewall to work, I know I need to turn off the commercial firewall in the dslmodem/router/firewall device. Should I purchase a bridge and try to turn off the routing function also?

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Debian Configuration :: DHCP Client Don't Start With /etc/init.d/network Restart?

May 28, 2011

I installed the latest Debian on a computer to make a backup appliance. No GUI.When the computer starts, everything is okay. The DHCP client is running, the network interface have an address, fine.If I do a /etc/init.d/network restart (or stop + start), no more DHCP client. t is stopped when the interface is down. When the interface is up, I have to start it manually.1 - is it normal ?2 - isn't ifup's job to launch the dhcp client ?3 - can /etc/network/if-up.d be the right place to resolve this ?

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Server :: Verify Configuration For Services (httpd, Sendmail ,ldap ,DHCP, DNS, SQUID)?

Aug 22, 2009

How can I verify the following service configuration files/setup are ok with?(in RedHat)
httpd
sendmail
ldap
DHCP
DNS
SQUID

For example, I can use "testparm" to verify the my samba configuration . I want a similar kind of testing option for the above mentioned options.

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Debian Configuration :: DDNS (dhcp+bind9) - Wrong PTR Records In Reverse Zone?

Jun 3, 2011

I've configured my dhcp server to update dynamically the DNS zones of BIND9 name server. Everything works ok, except for reverse nslookup:

nslookup 10.141.50.3
Server:127.0.0.1
Address:127.0.0.1#53

[code]....

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Debian Configuration :: Changing Fonts In GRUB2?

Aug 12, 2010

After removing a hard drive I (thought I)wasn't using, GRUB failed to load(turns out stage1 was on that drive) and it refused to install to a new drive(even after I kexec'd into the system - which was fun, considering the LiveCD used a different name for the hard drive). I finally threw in the towel and installed GRUB2, which worked after removing a second, incorrect root=. However, I can't find out how to switch the font from the fugly default to something that doesn't try to gauge my eyes out with a rusty spoon.

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Debian Configuration :: Dovecot Works But Sieve Does Not Yet

Aug 16, 2015

Delivery via docevot lda works for the virtual users.

Sending a mail that should be redirected to a folder instead of going to the INBOX does not work

Code: Select allecho "lala" | mail -s beispiel julius@myvirtualdomain

#/home/vmail/julius@myvirtualdomain/.dovecot.sieve

Code: Select all   
   
    require "fileinto";
    if header :contains "subject" ["beispiel"] {
      fileinto "beispielordner";
    } else {
      # The rest goes into INBOX
     # default is "implicit keep", we do it explicitly here
      keep;
    }
     
I can see no errors in dovecot.log, -info.log, -debug.log but also no sieve messages

Code:

Select all 
  #/etc/dovecot/conf.d/15-lda.conf
    protocol lda {
            postmaster_address = julius@localhost
            mail_plugins = $mail_plugins sieve

[Code] .....

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Debian Configuration :: NetInstall Doesn't Works?

Jul 17, 2010

I bought a laptop : Samsung R580 and when i want to install Debian Squeeze with NetInstall, it's impossible because ma Ethernet Card isn't recognized.These are the caracteristics of my card :PCI ID : 11ab4381Supporté : YesFabricant : Marvell Technology Group Ltd.Matériel : 88E8059 PCI-E Gigabit Ethernet ControllerPilote : sky2The driver is not in the kernel 2.6.32 and i must to wait a new kernel version in Debian?

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Debian Configuration :: Wifi Doesn't Works

Aug 5, 2011

After to install Debian Sid, i can't to connect to my network. When i launch lsmod, ath9k is present so the module is enabled.I don't use network-manager-gnome, wicd and other, i modify myself /etc/network/interface. But even with this configuration, the wifi does not works.

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Debian Configuration :: Changing Keyboard Layout On Console?

Apr 9, 2010

I know there are many threads regarding this topic.I probably read most of them. At installation time I told Debian to use German keyboard layout (since I am from Germany). Now I want to switch it to American keyboard layout. In X this was no problem. But in the tty consoles I cant get it changed. It does not matter to me if it is system wide or user wide because I am the only user. (system wide would be a little bit more preferrable because it would affect the super user too, I think).I tried dpkg-reconfigure console-data
and selecting my desired layout. This changes the Layout to American until reboot

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Debian Configuration :: Changing Grub Splash Image?

Nov 27, 2010

I decided to finally change the grub 1.98 splash image today and found a few tutorials on how to do so. They all pretty much said the same thing. Resize an image to 640 x 480, save it as a .tga, stick it in /boot/grub/images/desktop-base. I did so and opened /etc/grub.d/05_debian_theme and changed WALLPAPER="/usr/share/images/desktop-base/moreblue-orbit-grub.{png,tga}" to WALLPAPER="/usr/share/images/desktop-base/56871.{png,tga}". After that I ran update-grub. When it told me the image it found, it said it found desktop-grub. I don't know what I did wrong but it's not finding my image. Like an idiot I forgot to back up the original file but the only thing I changed was that WALLPAPER line, like I said. I had copied that version of the file and pasted it in another document before messing around with different parts of the file to see if I could get it to work. Everything ended in failure so I copied the back up in the other document and simply pasted it over the one I had been tinkering with. However, when I try to update grub I get a syntax error which I didn't before with the exact file I have now. The error reads:

/etc/grub.d/05_debian_theme: 65: Syntax error: end of file unexpected (expecting "}")

Here's my grub file.

#!/bin/sh -e
. /usr/lib/grub/grub-mkconfig_lib
# this allows desktop-base to override our settings
f=/usr/share/desktop-base/grub_background.sh

[Code]....

I'm completely lost at this point, both on how to actually change the splash image and why I'm getting a syntax error.

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Debian Configuration :: Changing Console Keyboard Layout?

Sep 8, 2011

I just installed Debian 6 and need to change the console keyboard layout (I am not running any sort of gui).I installed 'console-data' and ran:# dpkg-reconfigure console-dataThis assigns my Apple keyboard keys perfectly but it won't survive a reboot, which is really important for entering passwords

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