Networking :: Get Netbios Name From Ip Address?
Mar 1, 2010
At the CLI, I want to know how to get a netbios name from an IP address. It seems that every solution that I have found is windows based, or requires me to install something beyond samba. is a simple "prog-x -somearg 192.168.1.100" or similar to get the netbios name - and that it doesn't require a reconfiguration of my server?
For instance, I would like this to be usable on a desktop system in an ad hoc without having to be run from root.
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Apr 29, 2010
I have been beating my brains out the last few days trying to get my linux box to ping my Pc's via the netbios name. (ping pc_name) I have read post after post with no luck at all. What i do know is that my pc's can ping the linux box via netbios name with no problem. Samba works from the pc's but not the other way around. I have added wins to my host in the nsswitch.conf fileMy smb.conf file:Quote:
global]
workgroup = OFFICE
server string = Samba Server Version %v
[code]....
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Oct 8, 2010
I've a server in an European data center, My server is receiving a lot of UDP Netbios Boradcast packets (I've sniffed them via tcpdump )
I've block the sender IP via iptables but tcpdump again shows the packets that are receiving.
an example tcpdump output 16:35:25.829592 IP SENDER-IP.netbios-ns > MY-SERVER-IP.255.netbios-ns: NBT UDP PACKET(137): QUERY; REQUEST; BROADCAST
How can I block those broadcast packets?
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May 6, 2010
I'm having some trouble addressing computers by name. I've just upgraded most my my box's to Lucid, and it was all working fine, but suddenly stopped - not quite sure why, or what I did, but I need it to come back! At first I thought it was my old router dying (which it was) but a new router hasn't helped.
I've now moved DHCP from the router to my server, and that's working fine, giving out static IPs from MAC addresses, and so forth, but I still can't address anything by name. My server is on 192.168.100.1 and called myth-server, if I
[Code]....
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Sep 18, 2010
In recent days, (today is September 18, 2010) I've been surfing the web trying to learn how to access nodes in my soho lan by netbios names instead of having to connect through the ip number, because ip's change every time according to DHCP assignments. I do not know what has happened to the "new" command mount.cifs, but things seem to have become a bit more complicated with the new version. Security problems, they say, and surely that's the reason.
I show here an automated way of loging into servers by netbios name instead of having to resort to the use of IP numbers, hosts files, wins servers and all that jazz. This is especially useful if your soho lan have five or more network nodes, and you do not want to go finding out the ip numbers assigned to the machines you want to connect to (temporarily or permanently).
This output is piped to gawk to isolate the line containing <00>, and gawk outputs the first element (print $1) of that line, which happens to be the ip of the server ServerName. I tested the script in my soho network, which now has Linux, Windows XP and Windows 7 nodes, and it worked perfectly for both tipes of servers.I'm using GNU's gawk, but I'm pretty sure that awk would do the job just as well.
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Jan 28, 2011
Givens
LAN
CentOS 5.5
Windows 7 machine (hostname/NETBIOS name: AwesomePC, LAN IP: 192.168.1.20)
Workgroup: Cake
No WINS server
No Domain
No AD
Goal
From CentOS 5.5, have
# ping AwesomePC
resolve to a ping on 192.168.1.20
Problem
# ping AwesomePC
resolves to some random public IP that seems to be coming from my WAN DNS (openDNS) servers
ATTEMPTS
Have edited /etc/nsswitch.conf, edited line: hosts: files wins dns Have edited /etc/resolv.conf, added line: search CAKE Have installed samba (# yum install samba) and run (# service smb start), with /etc/samba/smb.conf, workgroup = CAKE, name resolve order = wins host lmhosts bcast
Does # ping even care about samba? How can I get this to work?
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May 11, 2011
I am on a 172.16.x.x network with about 60 Windows XP home and Vista home clients in a peer-to-peer workgroup that uses DHCP to assign addresses. About half the traffic on my LAN is netbios broadcast. I do not want to do a WINS server because I do not want to have to manually change the registry on every machine. This is only for local name resolution and I do not have any web servers or e-mail servers. I do not have access to a Windows server to use as a DNS server. I am on Debian and using BIND but am open to other suggestions.
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Nov 30, 2010
I have a fileserver that I want to share out samba shares. However, i configured samba to have another netbios (SAN) and my windows box still sees whoopn-SAN which is the name I gave to my server when i installed it. Now I am using 9.10 and I know that i can create a share from the gnome gui in nautilus and that appears to be a windows like share. How can I turn OFF the windows like shares that ubuntu does out of the box and use ONLY samba? I ask because there appears to be a conflict of permissions b/w samba and this stuff.
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Feb 24, 2010
Currently my OS is Ubuntu 9.04 Jaunty Jackalope Desktop OS and my web server is Apache2. I have a public address 60.x.y.z and my pc local address is 10.x.y.z. I have a web app in my Apache2 which currently run in localhost(10.x.y.z).
I would like to enable the web app so that it could be browse from outside. I know there maybe some port forwarding process and some commands involved in order to do that. But I have no idea on the steps to do that.
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May 12, 2011
I am working on implementing a protocol on NS2.34 .I really need help to solve this problem . Actually , I don't now whether the problem is generated by the tcl code or the c++ code when I run the simulation, I get this result :
Code:
num_nodes is set 64
INITIALIZE THE LIST xListHead
34
45
channel.cc:sendUp - Calc highestAntennaZ_ and distCST_
highestAntennaZ_ = 1.5, distCST_ = 550.0
SORTING LISTS ...DONE!
code....
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Apr 24, 2010
Consider the following program:
Code:
#include <stdio.h>
#include <stdint.h>
[code]...
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Dec 16, 2010
Version 10.04 LTS. Installed desktop version and network worked but I needed a static IP address and the install configures for a DHCP configured address. I tried changing to static address using the System->Preferences->Network Connections application but was unable to get the system to come up with the network up.
So I manually modified the /etc/network/interfaces and the /etc/resolv.conf files. I restart the system but when I do an ifconfig, I don't see a configured IP address on eth0 (only the loopback address). If I run /sbin/ifup eth0 everything then works fine and ifconfig shows the correct address bound to eth0.
My files are as follows:
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Mar 12, 2011
I'm running Ubuntu 10.10 and I'm having problems trying to assign it a static IP address. No matter what I put in the Preferences->Networking area (identifying the interface as Manual)... it still will query DHCP for an address if I run the dhclient command. I'm using to using ubuntu server where I just set the IP in the interfaces config file.
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May 7, 2010
I am running my own Postfix mail server. Some time ago I noticed that most email was rejected because of the server's dynamic IP address. So I got a fixed IP address. However then I noticed that some mails got rejected due to failing the reverse DNS check. So my ISP told me to get a range of IP addresses and they could then create a PTR record for one of those addresses. That is now running but it turns out that the IP address used for the PTR record is a ... dynamic IP address. So Spamhaus PBL rejects my emails again.
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Jun 7, 2009
I have a few external IP's assigned to me by my ISP. I have IPcop as my router/firewall. I am wondering how to bind 1 of my external ip's to my internal ip address. So I do not have to port forward, etc. For Example, 77.77.77.77 to 192.168.1.123 and on the server it see's the external IP address.
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Oct 6, 2010
In my job I use some ethernet embedded devices. They take an ip address from dhcp server or auto ip. I only know mac address.How can I obtain ip from mac address? In other words I need a rarp packet generator.
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Oct 28, 2010
I dont know for what reason, since 2 days, I started having this message whenever I try to start httpd.I commented "Listen 443", restarted httpd started correctly. I needed to comment "listen 443" in order to be able to start httpdWhat is strange is when I do
Code:
telnet mylinux 443
it responds
[code]...
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May 29, 2011
how to assign a address to my ethernet card all the options available
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Jul 11, 2010
I'm having trouble getting my debian box to find my windows box. This should be possible using netbios names.
The debian box is a newly installed minimal (nothing but base) release, to which I've added samba (using apt-get).
The windows box can see the debuan box just fine. Attempting to ping it by name results with:
Pinging debbox [192.168.1.100] with 32 bytes of data: ...
But going back the other way, the debian box can't see the windows box.
ping: unknown host winbox
I'm pretty happy that the windows box is behaving itself as there are no problems getting it to interact with other windows machines on the network.
Looking on google, the suggestion is to modify the host line in /etc/nsswitch.conf to include wins: hosts: files dns [b]wins[/b]
This worked on other linux machines in the past but not this time.
So my guess it that I've got SAMBA mis-configured or I'm missing a package.
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Nov 29, 2009
Does anyone know how to configure Fedora 12 to use netbios over an OpenVPN network
putting
hosts: files wins dns
into the nsswitch.conf file enable netbios over the LAN but not over the VPN.
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Aug 29, 2010
I have these two ports open for some reason. netstat says they're attached to 'smbd', but when I look at packages installed and search for smbd the only thing that comes up is samba4 which is NOT installed.
I'm guessing some other package installed this as a dependency. Is there anyway to find out what it was and remove it?
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Apr 6, 2011
If you're running samba server on your Slackware box on a windows network / domain, and you don't want it showing up on the windows computers network neighborhood browser, there's a couple of things you have to do. First, add the line:
disable netbios = yes to the global section of smb.conf. This didn't work for me so I also figured out the next step:
Second, edit the rc.samba script and remove the references to starting or restarting nmbd.
In this line: if [ -x /usr/sbin/smbd -a -x /usr/sbin/nmbd -a -r /etc/samba/smb.conf ]; then
Remove the reference to nmbd (underlined above) so it looks like this:
if [ -x /usr/sbin/smbd -a -r /etc/samba/smb.conf ]; then
Then comment out with a # this part: #echo " /usr/sbin/nmbd -D" # /usr/sbin/nmbd -D
and add a comment # mark here (right before nmbd)
samba_stop() {
killall smbd # nmbd
underlined above, then restart samba or reboot. The first step may not be necessary if you make the changes to rc.samba but I did both and that took care of it.
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Jan 18, 2010
I have a dedicated control computer that can only be accessed with web-browser (with its ip-address). My DHCP-server gives a static ip-address to the control computer (base on its mac-address). Somehow and after some time the control computer looses its ip-address (can't ping to it any more) ... and then I have to reset the control computer to get it to pick up the ip-address ... this is not a good solution since the control computer is not nearby. is there a way to force the control computer to renew its ip-address based on its mac-address
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Apr 18, 2011
My security software has picked up multiple port scanning detections on my router/network and only the IP addresses are available. Is it possible to find out what the remote mac address is to see if the IP source has been spoofed? I've got a couple of different IP sources which were found scanning my ports.
I don't know if my IP and the remote IP address are on the same network or subnet for that matter which is the reason for my wanting to know what the mac address is to find out if its coming from the same remote machine.
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Nov 30, 2009
I've had my FC11 x86_64 installation up and running for 6 months. Until a week ago, I was able to mount windows shares through Nautilis using their netbios names. About a week ago, this all broke with no tinkering on my part. Now, I can mount the shares using the IP address, but not using the netbios name.
When I make he attempt either from scratch or by using a previously working bookmark, I get "cannot display location "smb:\..." When I browse the network using Nautilis I can see the workgroup, but when I try to open it, I get "unable to mount location. Failed to retrieve share list from server." When I use nmblookup with the netbios name, the correct ip adress is returned.
The problem seemed to correspond to a software update that occurred on 2009-11-21 that included updates to selinux-policy and selinux-policy-targeted. SE Linux has the System Default Enforcing Mode set to disabled. The system default policy type is set to targeted with no other options available.nsswitch.conf file appears to have been changed on the same date, but reverting back to the backup version of the file failed to solve the problem. Samba is up and running. My linux shares are accessible from my windows boxes. The firewall is open to smb and smbclient.
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Oct 1, 2010
how to get the mac address from given ip address
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Feb 23, 2011
This applies to my 2 opensuse PC's, my Windows PC is fine.I can ping a hostname, say "PC1" but I can not ping PC1.domain.local (even the host PC can not ping it's own FQDN). When I ping just the hostname the ping stats even list the FQDN.Onto the next issue, since all my PC's, have the domain prefix domain.local, my Synology can not. I can ping it's IP and that is it. I can resolve it's name with nmblookup just fine tho and that is what is killing me. How is this not resolving.Even weirder, I can browse to "Synology" in Network Servers under places on the slab.
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Jun 8, 2010
i know exactly what i need to do, im just not familiar enough with command line to do it properly.i have 7 computers.the first 4 are connected to a router via wireless at one end of the house. of the last 3 only 1 will be able to access the router via wireless, so it needs to share it's one wireless connection via ethernet. this computer i'm going to call 'server'server will have two IP'swlan0 192.168.1.6 this connects to the router that has internet access.eth0 i intend to have the following settingsip:192.168.0.1sub: 255.255.0eth0 will connect to a second router, where the cat5 cable goes from the server, into the internet port of the router where i will define the router's static IP:IP: 192.168.0.100sub: 255.255.255.0gateway 192.168.0.1i have then set the router IP for LAN handling as 192.168.27.1 and all ethernet connections will have a 192.168.27.x IP.
so i need to know how to, without a gui application, use the terminal to assign server eth0 a proper IP address, and tell the server to take the connection it has and share it through eth0 to supply internet for the last 2 computers via ethernet.i had it set up in this way with a windows machine being the one that had the wifi access, but i'd rather have it setup for the ubuntu server to do this task. security is imperative for these 3 remaining machines, so just getting 2 more wifi adapters for a connection to the initial router isn't an option.the 2 that connect to server do so through SSH and though server IS connected via wireless it only makes outward connections through
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Jul 6, 2011
I have one router, a linksys. It allows wireless and wired connections, as is normal. I have two XP machinesby wire to the router and three linux machines connected wirelessly. The XP machines both have IP addresses beginning with 192.168. while my three linux machines have IP addresses that all begin with 172. None of the machines is connected with a static IP address. All are automatic DHCP.I am told that the above scenario makes no sense. However, such is what I have so, I trust, the theory and the fact do not gel. I would not care except that I cannot see - using the nautilus network servers program, all of the XP computers with some of my linux boxes.
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Jan 20, 2010
I installed a copy of Kubuntu on my desktop at work yesterday & I was able to connect to the Internet just fine then but today when I came in I can not get an IP address, from what I can tell. ifconfig just lists the following. eth0 Link encap:Ethernet HWaddr 00:08:74:bc:b0:59 inet6 addr: fe80::208:74ff:febc:b059/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:278 errors:0 Dropped:0 overruns:0 frame:0 TX packets:16 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:17792 (17.7 KB) TX bytes:3952 (3.9 KB) Interrupt:17
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