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COP 4343 Unix System Administration

COP 4343 Unix System Administration. Unit 16: file server samba. File server. Remote access to files ftp put/get files from remote hosts nfs tight integration in Unix environment samba share access to/from Windows systems. Common Internet File System. other names

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COP 4343 Unix System Administration

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  1. COP 4343Unix System Administration Unit 16: file server samba

  2. File server • Remote access to files • ftp • put/get files from remote hosts • nfs • tight integration in Unix environment • samba • share access to/from Windows systems

  3. Common Internet File System • other names • Server Message Block (SMB) • Samba • Samba server • Linux system appear in Windows networks as if it were another Windows system • Samba client • Linux can access Windows systems that are configured to share their resources

  4. Common Internet File System • packages to install • samba • samba-common • samba-client • smbfs is part of 2.6 kernel • check for module, or compile in

  5. Samba Client Utilities • smbclient • command-line utility that allows logging into a Windows host, and interacting using a series of commands • standard mount command using a file system type of smbfs • printing to a Windows printer is done using the smbprint command

  6. smbclient • check which shares are available • smbclient –L host • smbclient –L printers1 • ftp-like file access • smbclient //unix/faxes • parameter for user: -U user • anonymous access might be allowed

  7. smbfs • check whether module is available • use regular mount command mount //unix/faxes /mnt

  8. Samba Server • Samba includes 2 server daemons: • nmbd: NetBIOS name service • winbindd: user/password resolver • smbd: SMB protocol server • configuration: /etc/samba

  9. configuration files • smb.conf • defines shares • home directories • printers • others • check with testparm • lmhosts • maps NETBios names to IP numbers • smbpasswd • passwords for local users

  10. Creating Samba Users • samba server requires user authentication • best practice: encrypted passwords • create accounts for all users: cat /etc/passwd | mksmbpasswd.sh > smbpasswd • create passwords for allowed users: smbpasswd user

  11. Using SWAT to Configure SMB • web-based tool • configure smb.conf • start/stop smb service • status information • install via: yum install samba-swat • SWAT runs via xinetd the superserver • /etc/xinetd.d/swat

  12. Using SWAT to Configure SMB

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