Nov 05, 2010 · Hi, Thank you for your post here. You don't have to know the specific ports involved in the SMB/CIFS file sharing. In Windows Server 2008 Windows Firewall with advanced security, there is a set of inbound File and Printer sharing firewall rules.

Mar 03, 2018 · And the reason is the port 445 is globally blocked by the IT guys, maybe to prevent malware spreading. I am sure all the ports are opened on both the server and client, all firewall is disabled, And I can connect to the port 445 if two computer close enough(e.g. they are both plug into the same switch or router). Excellent - we see that the Samba profile is configured to utilize 2 UDP ports and 2 TCP ports. Use the Samba application profile in our firewall configuration: $ sudo ufw allow from to any app Samba. Notice that we use the word "app" in the command above in lieu of "port" which is used when specifying port numbers. Activate the I have ufw set up to allow samba connections, but this does not seem to allow files to be transferred through Ubuntu's "Personal File Sharing" using the Public folder. The share can be seen, but not accessed if the firewall is active. Are there extra ports that need to be opened? The default ufw profile opens ports 137, 138, 139 and 445. CIFS uses UDP ports 137 and 138, and TCP ports 139 and 445. Your storage system sends and receives data on these ports while providing CIFS service. If it is a member of an Active Directory domain, your storage system must also make outbound connections destined for DNS and Kerberos. Apr 13, 2020 · Port 389 (TCP) - for LDAP (Active Directory Mode) Port 445 (TCP) - NetBIOS was moved to 445 after 2000 and beyond, (CIFS) Port 901 (TCP) - for SWAT service (not related to client communication) How we open these ports for the Samba services will depend on the type of firewall you have on your Linux server. In computer networking, Server Message Block (SMB), one version of which was also known as Common Internet File System (CIFS / s ɪ f s /), is a network communication protocol for providing shared access to files, printers, and serial ports between nodes on a network. Jun 17, 2019 · To open a specific port, use the Other ports category of the Firewall Configuration tool. To open a port, click on the Add button to display the Port and Protocol dialog shown below: This dialog provides a far more extensive list of ports. Either select the desired port from the list, or enter it manually if it is not listed by selecting the

Mar 29, 2020

A firewall is a way to protect machines from any unwanted traffic from outside. It enables users to control incoming network traffic on host machines by defining a set of firewall rules. These rules are used to sort the incoming traffic and either block it or allow through. If you are running the firewalld daemon, run the following commands to enable the ports that are required by the ctdb and samba services. # firewall-cmd --add-service=ctdb --permanent # firewall-cmd --add-service=samba --permanent # firewall-cmd --reload

Standard Protocol Ports. Standard Protocol Ports would be those ports that are used by a protocol-specific monitor. For example, the Web Page monitor uses HTTP, and therefore (by default) port 80 to access the remote server. The SMTP server monitor uses a default port of 25, POP3 is a default of port 110, etc.

Ports 137-139 are for NetBios/Name resolution. Without it you will have to access machines by IP address opposed to NetBIOS name. Example \\\share_name opposed to \\my_file_server\share_name So port 445 is sufficient if you can work with IP addresses only. Samba: Linux Iptables Firewall Configuration - nixCraft