Questions tagged [netbios]
The netbios tag has no usage guidance.
140
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TrueNAS SMB Share Inaccessible by NetBIOS Name
I'm currently working on a TrueNAS server to create a file share for a computer lab, and I've got everything working except for being able to connect to the share via it's custom NetBIOS name.
I can ...
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1
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Is there a way to show a 15+ character computer name in AD tools?
I'm currently using a longer than 15 character naming convention and this doesn't display well in Active Directory. I was able to create computer object with more than 15 character in AD, but when I ...
- 11
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1
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130
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netbios McAfee HIPS block
All across my network random computers have been receiving a ton of McAfee HIPS blocks that state "Blocked outgoing UDP Source random IP netbios (137) destination IP". The only way we can ...
- 23
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1
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852
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Why would blocking NetBios packets impact SMB3?
Question
Why should NetBios filtering impact SMB3 / the ability to connect to port 445?
Context
Some users (including myself) were having issues accessing file shares hosted in Azure Files from their ...
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2
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Windows Server 2019 LMHOSTS File Does Not Work
I am trying to use the hosts/lmhosts files to create various aliases on my new Windows 2019 Server. It is on a corporate Active Directory Domain. "Use LMHOSTS" is checked in the TCP/IP ...
- 155
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0
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951
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Disabling NetBIOS for Samba SMB2
I need to get a pcap for SMB2, but without using NetBIOS as a transport (Direct TCP connection).
I did disable netbios on server and client. Both sides on Linux.
[global]
...
min protocol = SMB3
...
- 131
1
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1
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39
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WinServer Connects To SMB Share As "TINA2"
I have a computer that has a fileshare (Windows Server 2012). When I looked at the sessions, I saw a computer named tina2. There is no current computer on our network named tina2. When I ...
- 523
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2
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1k
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Windows Server 2012 R2 being hacked for DDoS
I use a German server for RDP.
Recently I received an email from my server provider that my server participated DDoS attack.
Can anyone point a direction on how to resolve the issue?
I have
changed ...
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1
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154
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Access authorization does not work well after replacing a NAS using Kerberos on a Windows server 2012 R2
Environment:
A SOHO network under an Active Directory domain controller on a Windows Server 2012 R2.
A NAS with access authorization via Kerberos on the domain controller.
The DNS server is on the ...
- 159
1
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1
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4k
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DFS Namespace Resolution without netbios - Why does it work
So, my problem is not that something does not work. But that it works, and I cannot figure out why.
Short version:
I am able to access \\mydomain\MyDFSRoot even though netbios/LLMNR is off, and DNS-...
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990
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nmbd "Packet send failed" error
I'm desperately trying to get folder sharing over SMB working on my local network.
I'm running up-to-date arch linux and connecting over wifi using wicd. I have latest samba installed (4.10.4).
While ...
0
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1
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2k
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Unable to access SMB share only on netbios alias
So we have an ancient Win7 machine which has been used as a file server. This thing has come to the end of its life, and the 20-user limit is starting to hit us hard.
I have set up a FreeNAS server, ...
- 131
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1
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Unable to connect Windows Server 2012 R2 to a Domain Controller. Getting Error
I am unable to connect Windows Server 2012 R2 to a Domain Controller. Getting Error,
An Attempt to Resolve the DNS name of a domain controller in the domain being joined has failed. Please verify the ...
2
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1
answer
1k
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Name resolution issue on Windows 10
I have a small office network with a handful of Windows / Ubuntu machines of varying releases. A few days ago, one Windows machine lost the ability to access any services on the Ubuntu machines by ...
- 53
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0
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3k
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Multiple NetBIOS names on Windows Server 2016
Until at least Windows 2008R2 it was possible to add multiple NetBIOS names to the same machine, with each additional name resolveable via NetBIOS broadcasts (ie: the classical NetBIOS resolution, not ...
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2
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868
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Only one Windows 10 PC cannot ping/access two 2003 R2 servers as of recent
I have two older Win 2003 R2 servers acting as DNS, named DNS1 and DNS2. I have two Windows 10 Pro, hard-wired, same network, latest patches. One is a laptop and one is a desktop.
The desktop can ...
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1
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What is the firewall-cmd to configure iptables to drop NetBIOS broadcasts?
I have a CentOS 7 server in a LAN together with Windows machines.
I have switched on logging in iptables of "to-be-rejected" or "to-be-dropped" packets using
firewall-cmd --set-log-denied=all
This ...
- 960
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0
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1k
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CentOS (with firewalld) - Forward udp (netbios) broadcast
I'm trying to implement a small lab infrastructure with VSphere with multiple LAN, 2 of the LANs are :
Work : with employee laptops
Trusted : With all my server (except web that is in a separate DMZ)...
1
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1
answer
617
views
How can I redirect netbios requests?
I've got a fileserver which we've had to decommision... Lets call it FILE-OLD.
It's been replaced by a shiny new fileserver, lets call that one FILE-NEW.
FILE-NEW has the same IP as FILE-OLD used to ...
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-1
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1
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346
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How to define a different name for each IP/NIC in the same PC [closed]
In a machine with multiple IP(s)
(all in the same subnet)
Using NETBIOS or WINS (no DNS)
I want to PING this machine
using a name for each IP (or a name for each NIC)
for example, this IP(s) are in ...
- 326
3
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0
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2k
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Enabling Network Discovery via GPO does not work when Windows Firewall turned on
Environment: Windows domain
I'm trying to turn on network discovery for 100+ computers and I've created a computer-targeted GPO following instructions from this article: https://www.technig.com/...
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2
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7k
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DFS Namespaces DNS and NetBIOS Name Resolution
I have a Windows Domain which hosts a number of DFS Namespaces in an environment which has DNS servers only (the clients are Windows 7+ and NetBIOS is not disabled on them).
Example
Domain: andshrew....
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0
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375
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How can I refer to a computer in a domain using the NetBIOS name as is done with users? i.e. domain\computer like domain\user
I've tried researching this, but none of the documentation I've found states how this is done, or if it is possible.
I can refer to a domain user like so:
domain\user
Even when the domain is ...
1
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1
answer
2k
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Why do I see a lot of incoming netbios activity on my Windows Firewall?
I have been seeing a lot of firewall drops on port 137 and 138 (netbios) after I enabled default behavior on my Windows FW (Block incoming, Allow outgoing) What is the reason for all netbios activity ...
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2
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13k
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Windows Server 2016 shares not accessible
After rebooting Windows Server 2016 Essentials, all shares are in-accessible. When accessing the server locally using eg \\myserv I get a list of all shares, but when trying to enter one "The network ...
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1
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1k
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Slow connection establishment with SMB on Windows 7 using VPN
I am using Windows 7 professional with service pack 1 installed.
After installing large amount of system updates (using Windows Update), I started to experience problems with SMB on my PC. This ...
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3
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1
answer
1k
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NetBIOS Name Service requests not being sent or answered
I have serious inconsistency on my systems of whether NetBIOS name service requests are working on endpoints. I'm testing with Win7 and Server 2008R2 systems. We do not have a WINS server and don't ...
- 131
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4k
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Active Directory Domain where FQDN and NetBIOS name are the same
I have "inherited" an ancient domain (NT4, then upgraded to Win2000 Mixed Mode and now running on Win2003) where the NetBIOS name coincides with the DNS/FQDN one, and this is giving us problems with ...
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netbios not working using ip nor symbolic (cname)
There are more than a few questions/answers related to 'System error 53 has occurred' and lots of answers that, does not apply to this issue.
I have a computer named 'caicos' and a dns cname '...
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2k
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WINS server for inter-VLAN NetBIOS resolution
I have two VLANs. Clients are on one VLAN and there are a couple servers (including a file server) on another VLAN. I have L3 routing between the VLANs. Clients can ping the servers' IP addresses and ...
4
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1
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4k
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How to disable NetBIOS over TCP/IP on pfSense via DHCP
I have a pfSense applicance running version 2.x. I want to disable NetBios over TCP/IP via the DHCP Server so it is not activated on Windows clients. It's possible to do it with a Windows server but I ...
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269
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Weird RNP samba devices in Workgroup
in the Network folder of all Windows computers and in the output of smbtree command I see a lot of devices with strange names (legitimate names obfuscated with #).
WORKGROUP
\\WEBSERVER
...
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3
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2
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4k
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Scan to folder across subnets/VLAN's no longer works
We have a Sharp copier scanner set up on address 172.20.20.200 and a Windows 2008 file server with network shares IP - 172.20.10.82. Up until a week ago we could scan from the copier directly to a ...
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284
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Win server 2003: bind netbios name to ip address
I have a Win 2003 enterprise edition cluster. Each group of resources has its own ip address and network name.
Here is the result of nbtstat -n:
Public LAN(1):
Node IpAddress: [192.168.1.7] Scope Id:...
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1
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208
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Resolve NetBIOS names without full qualification
I am connected to my office VPN and I can successfully RDP into my computer using the fully qualified name for it PC00001.myofficevpn.plc.
When I try to connect using only the hostname PC00001, I do ...
2
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1
answer
2k
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OmniOS r151018 file server visible in samba4 Active Directory but not in Windows Network Neighborhood
I have a test setup containing:
3 AD domain controllers (set up to replicate between them), all running Samba 4.3 on Univention Corporate Server 4.1
1 Windows 7 SP1 client joined to the domain
1 ...
- 2,522
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What does a REGISTRATION; NEGATIVE; RESPONSE; UNICAST message mean (UDP 137)?
I am seeing on the gateway of a WiFi network a flood of these messages:
12:32:53.334215 IP PRINTER.netbios-ns > 10.10.10.254.netbios-ns: NBT UDP PACKET(137): REGISTRATION; REQUEST; UNICAST
12:32:...
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140
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disallow Samba WINS from making hostnames viewable across subnets
I have a samba server set up at work for simple things, such as printer and folder sharing. There is a "internal" subnet and VLAN and a "guest" subnet and VLAN. Samba runs on the same Debian machine ...
1
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1
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709
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Windows 7 - VPN and host name lookup
I have set up a VPN server using a Sinology box for accessing my office network from home.
I can access all the office IPs, but the host name resolution has some problems. DNS queries work : nslookup ...
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588
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Strange NetBIOS query with old computer name
I've one computer in our network which I first named PC029. Shortly after I changed its name to PC021. This was more than a year ago. Today I've found (thanks to Wireshark) that this computer is ...
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0
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745
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Mac can connect to samba via IP but not netbios name [closed]
I've setup a samba share on Centos 6.
smb.conf
[data]
path = /data
writeable = yes
browseable = yes
valid users = user01
create mask = 0777
create mode = 0777
directory mode = 0777
share modes = yes
...
- 1,609
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139
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Rebuilding Domain From Scratch. How to Use Old Netbios Domain Name on new DC?
I have a client that I am currently in the process of upgrading from Windows Server 2003 to Windows Server 2012R2. They are a small business, working off of a single server. The decision was made to ...
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1k
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Debian 8(Jessie): netbios name resolution
To resolve netbios names on Debian 7(Wheezy) I used to install winbind and append a 'wins' in /etc/nsswitch.conf. This procedure appears to not work on a freshly installed Debian 8.2(Jessie). It does, ...
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1
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2k
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When should I use an LMHOST file? [closed]
I'm doing research on the LMHOSTS file. Can anyone tell me when I would want to use the LMHOST file?
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833
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NetBios issues with multiple adapters, may not be turning on
I'm working in a Windows 2008 server. I'm getting conflicting messages as to weather or not netbios is enabled. The problem is that my AD users can't "discover" the server. I think that netbios is to ...
- 133
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4
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3k
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How to find all hostnames (even laptops that aren't currently on the network) on a network?
I manage a network that has a lot of laptops. The users that use the laptops are frequently traveling. When someone gets a new computer I run into a problem determining what the hostname should be. ...
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0
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129
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Netbios binding in server 2008
I am creating a middle ground server as a funnel point for our regular network to talk to our legacy network, which is running Lantastic 8.0/8.1 on MS Dos 6.1.
To do so, I need to install Netbios, ...
- 165
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525
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Computers not showing up in each other's workgroup browser
I have set up a VPN network between my Windows 7 home computer and my remote Windows Server 2003. This all works fine, the computers can ping each other and I can also access the server's smb shares ...
- 111
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0
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656
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Samba logging all Macs on our network to log.workstation
We have a Samba share on an Ubuntu 14.04 server. Per-machine logging is switched on via log.%m. I understand from the Samba documentation that %m is the NetBIOS machine name for the client machine.
...
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1
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15k
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Error adding child Active Directory domain to existing forest
I'm building a test environment containing multiple Active Directory domains in the same forest, but I'm having strange issues while trying to add a child domain to the forest root domain.
All ...
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