12/21/2023 0 Comments Ubuntu samba firewall![]() ![]() Telnet to all the IP addresses on the server on port 139.Ping the server's IP address and loopback address (127.0.0.1).You can perform several tests to ensure that the Samba server and all its workstations can do basic communication with each other. Testing Basic Client / Server Network Connectivity This can be done by clicking on the Exceptions tab of the Windows Firewall dialog box and clicking on the File and Printer Sharing check box.Īfter you get SAMBA to work, you may want to experiment with the firewall software settings to optimize your security, keeping in mind the need to maintain a valid relationship with the Samba server. You may also leave the firewall on, but allow Windows file sharing traffic through this connection. Turn off the Internet Connection Firewall by clearing its check box.Click on the Advanced tab and then on the Windows Firewall Settings button.Right-click your on your LAN connection icon and select Properties.Double-click on the Network Connections icon.You may also need to disable the firewall feature of Windows XP. Make this network a trusted network, instead of an Internet network, and ZoneAlarm should cease to interfere with Samba. To do so click on the firewall tab and edit the settings for your home network it will most likely have a .x/255.255.255.0 type entry. The easiest way around this is to configure Zone Alarm to consider your home network as a trusted network too. The NetBIOS traffic that Samba uses to communicate with the PCs on the network therefore is considered as hostile traffic. This means that the software will deny all inbound connections that attempt to connect with your PC. The default installation of Zone Alarm assumes that your PC is directly connected to the Internet. Iptables -A OUTPUT -s $SAMBA_SERVER -d $NETWORK -m state -state \įor more information, please refer to Chapter 14, " Linux Firewalls Using iptables". Iptables -A INPUT -p tcp -d $SAMBA_SERVER -m multiport \ ![]() Iptables -A INPUT -p udp -d $SAMBA_SERVER -m multiport \ Iptables -A INPUT -p udp -s $NETWORK -d $BROADCAST -dport 137 \ Iptables -A INPUT -p tcp -s $NETWORK -d $SAMBA_SERVER -m multiport \ Iptables -A INPUT -p udp -s $NETWORK -d $SAMBA_SERVER \ Or, you can configure it to allow through such Microsoft protocols as NetBIOS (UDP ports 137 and 138, TCP ports 139) and TCP port 445 for SMB file sharing without NetBIOS. You can ensure that it is deactivated which may be desirable on a secured network. The Fedora installation process configures the iptables firewall package by default. Two popular firewall packages, iptables and ZoneAlarm offer solutions. Simply provide the filename as the first argument like tmp]# testparm -s filenameįirewall software installed both on your Windows PCs and on the Samba server itself may prevent Samba from functioning. Note: You can use testparm to test a file that's different from the default /etc/samba/smb.conf configuration file. There are other causes for Samba problems. Load smb config files from /etc/samba/smb.confĪ successful test only means that Samba will load the configuration file. If you used SWAT to edit the file, you will usually pass the test successfully, as tmp]# testparm -s Samba has a test utility called testparm that alerts you to errors in the smb.conf file. This chapter explores the ways in which you can recover from those mistakes that you couldn't avoid. Many simple steps need to be executed in the correct order, and one small slip up can have big repercussions. Unfortunately, the initial configuration of Samba can be tricky. By encouraging users to store files on a central file server, you can simplify data backup and in some cases, software installation and maintenance.
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