nautilus – Can not connect to smb share after updating to Ubuntu 19.10

I have set up a few network connections in Nautilus on Ubuntu 19.04.

After upgrading to 19.10, these shares no longer exist.

Even if I open Nautilus (also as root) I can see that + Other Locations But whatever I put in here does not allow me to connect to an SMB share. Click on the help icon to display the format (eg. smb://, but at the end of the help is displayed Available protocols and nothing below. I have installed smbclient, What do I miss?

Network – Ubuntu 18.04 problem to connect to Windows 10 SMB release

I have upgraded to Ubuntu 18.04 and can not connect to the Windows 10 SMB share.
Here's what I did / tested:

  1. I've tried to connect to smb: // (user) @IP using the standard Files app
    I had the dialog box asking for the password, and after I typed it, I saw the following: "Unable to access location: Error retrieving the server's share list: Connection timed out.

  2. With a terminal smbclient -L (that's the IP of my WIN10 PC), I have the correct list of shares available on that system.

  3. sudo ufw app list -> displays samba as an allowed app.

It seems that the smbclient is able to retrieve the share list from the Win10 system, but the default file app …
I do not really know how to continue this analysis. Did you notice a similar problem?
With best regards,
super car

Linux – Specific SMB version for the share folder of muont

I have an SMB server and want to write a script to automatically copy / move files to this server. On Linux I can do it with the command "mount -t cifs -o username = USER, password = PASS, vers = 2.1 // ip-address / patch-of] SMB-server / local-patch-to-mount " and then copy / move the file with "cp"or"mv"Commands in the scripts, but if I try to do the same in Windows, I can not, I'm trying to use the net use command, but I can not add anything."cifsmsgstr "" "Utility and specific SMB version, so I can not execute script copying / moving, please tell me there is a way to do this under Windwos, because I get an answer with the current script "Access Deneid" every time I let it run.
Many thanks,

Performance – How to Fix a Slow iSCSI Speed ​​(Compared to SMB)?

I have a NAS that provides SMB and iSCSI targets, and a server that connects directly through a 10GbE connection (no switch in between).

I have slow speeds with the iSCSI target as opposed to "high" (expected) speeds with an "SMB target."

See the speed comparison between SMB (Y 🙂 and iSCSI (E :):

Speed ​​comparison SMB (Y :) vs iSCSI (E :)

How can I investigate the performance issues with the iSCSI target?

NAS: Synology RackStation RS3617xs +

Routing – SMB shares that are not reachable over 1: 1 NAT

I am having a problem with Win 10 SMB folder shares on my company's network. There is a subnet (let's call it production) with 3 hosts that are industrial PCs that are used as machine controllers and are connected to the rest of the network via an mGuard router (let's call it a company). It is (allegedly) set up a 1: 1 NAT, which is to map Host 1 from the production network to an address in the corporate network. What I want to achieve is a shared folder on host 1 in the production network, which can be reached via the NAT in the corporate network. I do not have access to the router's configuration because it was remotely configured by the manufacturer of the computer. However, the NAT appears to be set up as requested because the corporate network has an address that responds to ping and VNC connection requests, but this is not possible. Access shared folders. The shares also seem to be configured correctly because they are seen by the other two hosts in the subnet. MGuard allegedly does not filter applications, the Windows firewalls are disabled on the controller PCs

NMAP of the NAT address seen from the company network:

NSE: Loaded 148 scripts for scanning.

NSE: Script Pre-scanning.

Initiating NSE at 11:43

Completed NSE at 11:43, 0.00s elapsed

Initiating NSE at 11:43

Completed NSE at 11:43, 0.00s elapsed

Initiating ARP Ping Scan at 11:43

Scanning (1 port)

Completed ARP Ping Scan at 11:43, 0.52s elapsed (1 total hosts)

Initiating Parallel DNS resolution of 1 host. at 11:43

Completed Parallel DNS resolution of 1 host. at 11:43, 0.00s elapsed

Initiating SYN Stealth Scan at 11:43

Scanning (1000 ports)

Discovered open port 3389/tcp on

Discovered open port 5900/tcp on

Discovered open port 1433/tcp on

Completed SYN Stealth Scan at 11:43, 4.02s elapsed (1000 total ports)

Initiating Service scan at 11:43

Scanning 3 services on

Completed Service scan at 11:44, 11.01s elapsed (3 services on 1 host)

Initiating OS detection (try #1) against

Retrying OS detection (try #2) against

NSE: Script scanning

Initiating NSE at 11:44

Completed NSE at 11:44, 5.12s elapsed

Initiating NSE at 11:44

Completed NSE at 11:44, 0.00s elapsed

Nmap scan report for

Host is up (0.0017s latency).

Not shown: 997 filtered ports


1433/tcp open  ms-sql-s      Microsoft SQL Server 2014 12.00.5000.00; SP2

| ms-sql-ntlm-info: 

|   Target_Name: 8957PU10-50K2

|   NetBIOS_Domain_Name: 8957PU10-50K2

|   NetBIOS_Computer_Name: 8957PU10-50K2

|   DNS_Domain_Name: 8957Pu10-50K2

|   DNS_Computer_Name: 8957Pu10-50K2

|_  Product_Version: 10.0.14393

| ssl-cert: Subject: commonName=SSL_Self_Signed_Fallback

| Issuer: commonName=SSL_Self_Signed_Fallback

| Public Key type: rsa

| Public Key bits: 1024

| Signature Algorithm: sha1WithRSAEncryption

| Not valid before: 2019-08-19T03:53:15

| Not valid after:  2049-08-19T03:53:15

| MD5:   7c01 11b2 b195 05bd 7557 949c 9f95 7057

|_SHA-1: 4542 4e51 1207 f65e 01a4 6ab3 0d4c 7391 09f1 4f09

|_ssl-date: 2019-08-19T09:44:45+00:00; +30s from scanner time.

3389/tcp open  ms-wbt-server Microsoft Terminal Services

| ssl-cert: Subject: commonName=8957Pu10-50K2

| Issuer: commonName=8957Pu10-50K2

| Public Key type: rsa

| Public Key bits: 2048

| Signature Algorithm: sha256WithRSAEncryption

| Not valid before: 2019-07-14T03:56:52

| Not valid after:  2020-01-13T03:56:52

| MD5:   e8bb 8d4a 32fa 6b74 c313 3d52 8f93 1790

|_SHA-1: c2b5 d8a8 44e1 a089 0525 6665 945e eceb 387b 70eb

|_ssl-date: 2019-08-19T09:44:45+00:00; +31s from scanner time.

5900/tcp open  vnc           VNC (protocol 3.8)

| vnc-info: 

|   Protocol version: 3.8

|   Security types: 

|     VNC Authentication (2)

|     Tight (16)

|   Tight auth subtypes: 

|_    STDV VNCAUTH_ (2)

MAC Address: A8:74:1D:76:A1:0C (Phoenix Contact Electronics Gmbh)

Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port

Device type: general purpose|WAP

Running (JUST GUESSING): Linux 2.6.X (97%), D-Link embedded (96%), TRENDnet embedded (96%), Microsoft Windows 2016|Vista (91%), FreeBSD 6.X (87%)

OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/h:dlink:dwl-624%2b cpe:/h:dlink:dwl-2000ap cpe:/h:trendnet:tew-432brp cpe:/o:microsoft:windows_server_2016 cpe:/o:microsoft:windows_vista::sp1:home_premium cpe:/o:freebsd:freebsd:6.2

Aggressive OS guesses: Linux 2.6.18 - 2.6.22 (97%), D-Link DWL-624+ or DWL-2000AP, or TRENDnet TEW-432BRP WAP (96%), Microsoft Windows Server 2016 (91%), Microsoft Windows Vista Home Premium SP1 (89%), FreeBSD 6.2-RELEASE (87%)

No exact OS matches for host (test conditions non-ideal).

Uptime guess: 0.244 days (since Mon Aug 19 05:52:30 2019)

Network Distance: 1 hop

TCP Sequence Prediction: Difficulty=257 (Good luck!)

IP ID Sequence Generation: Incremental

Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:

|_clock-skew: mean: 30s, deviation: 0s, median: 30s

| ms-sql-info: 


|     Version: 

|       name: Microsoft SQL Server 2014 SP2

|       number: 12.00.5000.00

|       Product: Microsoft SQL Server 2014

|       Service pack level: SP2

|       Post-SP patches applied: false

|_    TCP port: 1433



1   1.67 ms

The NetBIOS name for host 1 is 8957PU10-50K2

Some related resources:

Thank you in advance.

el capitan – Add an SMB printer through the terminal

Goal: Add a domain printer directly from the terminal without using its IP address.

Follow the instructions here:

I have executed this command:

sudo lpadmin -p sharp4141n -L "front office code" -E smb://ESC-PRINT01.byu.local/ESCN284_MX-4141N -P /Users/jaybrown/Desktop/ESC_PRINT01_ESC_N284_SHARP_MX_4141N_PCL6.ppd

But get the error:

lpadmin: Unknown argument “smb://ESC-PRINT01.byu.local/ESCN284_MX-4141N”.

I am in a domain. On an iMac with El Capitan. Please help me.

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mac – Finder Search does not work when searching for network drives shared with an SMB connection in Mojave 10.14.0

We had a nightmare finding out that Mojave 10.14.5 did not allow other Macs to connect through SMB without freezing the client's finder and / or making or breaking connections. To fix this, we have 10.14.0 clean installed. The only problem I have is that if the clients browse the Mojave server through the Finder or clients are in the limelight, no results from the Mojave server show will be displayed. This happens on all 14 clients. I have confirmed that the Mojave server has completed indexing. Not sure why none of the clients can browse the Mojave server. Any help would be appreciated.

MD5 hash comparison via SMB SLOW

I am writing a script for a full power solution in Powershell for Hyper-V VMs and I have encountered the problem that calculating the MD5 hash over the network on a deployed network drive over a WAN is about half the speed of copying the file even the WAN connection. I tried to refer certutil.exe from the operating system to the file over the share, and it is very slow. I also tried Get-FileHash in Powershell with similar results. I have hundreds of 250-MB files and could not find a more efficient way to do that without invoking a remote shell to run the command. Is there a better approach?

Server Message Block – SMB mounts well if kbr5 is used, but no explicit credentials

At my company, we tested SMB to replace NFS servers.
When mounting Windows server shares everything works as expected. ie:

mount.cifs // credentials = / home / ttest / .smb
# OR
mount.cifs // -o sec = krb5, uid = $ UID, gid = team, cruid = $ UID

For this test we have a Centos 7.6 server with Samba 4.8. Windows machines can fine mount the share, and Centos clients can mount it with the sec = kbr5 option.

The matter

I can not figure out why I can not mount this share with explicit permissions! ie:

mount.cifs // -o sec = krb5, uid = $ UID, gid = team, cruid = $ UID
mount.cifs // / mnt / share / -o credentials = / home / ttest / .smb