Red Hat Summit1.19. Configuring Samba to be compatible with clients that require an SMB version lower than the default
Samba uses a reasonable and secure default value for the minimum server message block (SMB) version it supports. However, if you have clients that require an older SMB version, you can configure Samba to support it.
1.19.1. Setting the minimum SMB protocol version supported by a Samba server
In Samba, the server min protocol parameter in the /etc/samba/smb.conf file defines the minimum server message block (SMB) protocol version the Samba server supports. You can change the minimum SMB protocol version. For more information, see the smb.conf(5) man page on your system.
By default, Samba on RHEL 8.2 and later supports only SMB2 and newer protocol versions. Red Hat recommends to not use the deprecated SMB1 protocol. However, if your environment requires SMB1, you can manually set the server min protocol parameter to NT1 to re-enable SMB1.
Prerequisites
- Samba is installed and configured.
Procedure
Edit the
/etc/samba/smb.conffile, add theserver min protocolparameter, and set the parameter to the minimum SMB protocol version the server should support. For example, to set the minimum SMB protocol version toSMB3, add:server min protocol = SMB3Restart the
smbservice:# systemctl restart smb
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