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Top Forums UNIX for Dummies Questions & Answers I need help to set up internet sharing in linux. Post 22781 by Nazo on Monday 10th of June 2002 07:06:36 PM
Old 06-10-2002
Question I need help to set up internet sharing in linux.

Ok, I'm kind of in between newbie and experienced somewhere. I'm an advanced computer user but only have a little experience with linux and a lot of problems with it. Currently I'm using Linux-Mandrake 8.0 (I know, I know, but let's not go into the many reasons why it's not even close to the best distro.) I tried using the little ICS setup wizard or whatever you would call it and it didn't work. The client would get an IP that was correctly assigned, but it couldn't get DNS resolutions or connect to any addresses.

Basically what I want to do is get help aimed more at a newbie on how to properly set up the normal way of ICS in linux using IP tables and whatever. I don't need the linux box to act as a firewall really because, for reasons that are too complicated to explain all out right now, the linux box is actually going through another proxy, so I have two network cards set up in it. I set up the one going to the LAN and the proxy to use 192.168.0.2 and the one that this computer would be connecting to is 192.168.1.1 so that the os would know which one to use for what.

I know this all sounds a little crazy, but, please, bear with me.

Basically, I have a computer sharing the internet connection on the LAN using the IP address 192.168.0.1 and there are two other computers on that LAN which connect through it. I would like to set up this linux box on 192.168.0.2 or any other IP address in that general range and connect my computer through it via that two network card method. This way I have a linux server on the lan among other things. (Don't worry, there's more than one reason I'm trying to do this, just too many.)

Also, I would really like to be able to set it up as a DNS server as well and to be able to manually refresh the DNS tables. I have problems every now and then with DNS and using the hosts file on my windows computer just isn't working for a few sites. Besides, presumably internet based things will go a little faster when they don't have to wait for a reply from my ISP to get the IP address.
 
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FINDSMB(1)                                                         User Commands                                                        FINDSMB(1)

NAME
findsmb - list info about machines that respond to SMB name queries on a subnet SYNOPSIS
findsmb [subnet broadcast address] DESCRIPTION
This perl script is part of the samba(7) suite. findsmb is a perl script that prints out several pieces of information about machines on a subnet that respond to SMB name query requests. It uses nmblookup(1) and smbclient(1) to obtain this information. OPTIONS
-r Controls whether findsmb takes bugs in Windows95 into account when trying to find a Netbios name registered of the remote machine. This option is disabled by default because it is specific to Windows 95 and Windows 95 machines only. If set, nmblookup(1) will be called with -B option. subnet broadcast address Without this option, findsmb will probe the subnet of the machine where findsmb(1) is run. This value is passed to nmblookup(1) as part of the -B option. EXAMPLES
The output of findsmb lists the following information for all machines that respond to the initial nmblookup for any name: IP address, NetBIOS name, Workgroup name, operating system, and SMB server version. There will be a '+' in front of the workgroup name for machines that are local master browsers for that workgroup. There will be an '*' in front of the workgroup name for machines that are the domain master browser for that workgroup. Machines that are running Windows for Workgroups, Windows 95 or Windows 98 will not show any information about the operating system or server version. The command with -r option must be run on a system without nmbd(8) running. If nmbd is running on the system, you will only get the IP address and the DNS name of the machine. To get proper responses from Windows 95 and Windows 98 machines, the command must be run as root and with -r option on a machine without nmbd running. For example, running findsmb without -r option set would yield output similar to the following IP ADDR NETBIOS NAME WORKGROUP/OS/VERSION --------------------------------------------------------------------- 192.168.35.10 MINESET-TEST1 [DMVENGR] 192.168.35.55 LINUXBOX *[MYGROUP] [Unix] [Samba 2.0.6] 192.168.35.56 HERBNT2 [HERB-NT] 192.168.35.63 GANDALF [MVENGR] [Unix] [Samba 2.0.5a for IRIX] 192.168.35.65 SAUNA [WORKGROUP] [Unix] [Samba 1.9.18p10] 192.168.35.71 FROGSTAR [ENGR] [Unix] [Samba 2.0.0 for IRIX] 192.168.35.78 HERBDHCP1 +[HERB] 192.168.35.88 SCNT2 +[MVENGR] [Windows NT 4.0] [NT LAN Manager 4.0] 192.168.35.93 FROGSTAR-PC [MVENGR] [Windows 5.0] [Windows 2000 LAN Manager] 192.168.35.97 HERBNT1 *[HERB-NT] [Windows NT 4.0] [NT LAN Manager 4.0] VERSION
This man page is correct for version 3 of the Samba suite. SEE ALSO
nmbd(8), smbclient(1), and nmblookup(1) AUTHOR
The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed. The original Samba man pages were written by Karl Auer. The man page sources were converted to YODL format (another excellent piece of Open Source software, available at ftp://ftp.icce.rug.nl/pub/unix/) and updated for the Samba 2.0 release by Jeremy Allison. The conversion to DocBook for Samba 2.2 was done by Gerald Carter. The conversion to DocBook XML 4.2 for Samba 3.0 was done by Alexander Bokovoy. Samba 3.5 06/18/2010 FINDSMB(1)

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