1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Linux Professional Institute Certification — 102 Angus Lees gus@inodes.org Geoffrey Robertson ge@ffrey.com Nick Urbanik nicku@nicku.org 2005 July Description of Objective 1.113.4 Properly manage the NFS, smb, and nmb daemons 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson Candidate should know how to mount remote filesystems using NFS, configure NFS for exporting local filesystems, start, stop, and restart the NFS server. Install and configure Samba using the included GUI tools or direct edit of the /etc/smb.conf file (Note: this deliberately excludes advanced NT domain issues but includes simple sharing of home directories and printers, as well as correctly setting the nmbd as a WINS client). Key files, terms, and utilities include: 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson /etc/exports /etc/fstab /etc/smb.conf mount umount Properly manage the NFS, smb and nmbs daemons Objective 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson Candidate should know how to mount remote filesystems using NFS, configure NFS for exporting local filesystems, start, stop, and restart the NFS server. Install and configure Samba using the included GUI tools or direct edit of the /etc/smb.conf file (Note: this deliberately excludes advanced NT domain issues but includes simple sharing of home directories and printers, as well as correctly setting the nmbd as a WINS client). Properly manage the NFS, smb, and nmb daemons Key files, terms and utilities 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson /etc/exports /etc/fstab /etc/smb.conf mount umount Properly manage the NFS, smb, and nmb daemons Resources 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson NFS: Samba: http://nfs.sourceforge.net/ http://au1.samba.org/samba/docs/ NFS About 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson “Network File System” Extremely widely used protocol for sharing files between Unix machines Built over RPC Almost always uses UDP Unlike alternatives, the NFS protocol is stateless—the server can reboot and the client carries on NFSv2 is very simple; v3 is an evolution of v2; v4 is complex (and stateful) NFS Client-side usage 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson mount -o options server:/path /mnt_point # typical /etc/fstab line - see nfs(5) server:/exports/home /home nfs rw,intr,rsize=8192,wsize=8192 Some options: rsize/wsize Read/write size intr Allow signals to interrupt timed-out operations soft Don’t retry indefinitely NFS Server-side configuration 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson /etc/exports controls what gets exported to where # /etc/exports. See exports(5) /home 10.0.128.0/24(rw,no_root_squash) /cdrom *(ro,all_squash) Information is actually communicated to mountd and kernel NFS server via exportfs(8) Note: No whitespace is allowed between client and client options (showmount(8) will query this information from a server) Samba About 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson Implementation of Windows networking protocols (SMB/CIFS, NMB) for Unix Samba version 3 (just released) gives PDC/BDC functionality, NT4 domain member support, much improved printing, etc Full suite of tools, including smbd and nmbd daemons, but also client tools: smbclient, rpcclient, net, smbstatus, nmblookup, smbtar, smbspool, etc Samba smb.conf 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson Configured through /etc/samba/smb.conf win.ini-esque sections describing shares [public] comment = Public files path = /home/ftp/pub read only = yes guest ok = yes Various %X string substitutions available (see smb.conf(5)) Samba smb.conf – Special sections 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson [global] Global configuration [homes] Triggers creation of automatic user home directory shares [printers] Triggers creation of printer shares for each system printer Samba SWAT 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson “Samba Web Administration Tool” Usual install is http://localhost:901/ Easy to use, links to relevant documentation, etc. Rewrites smb.conf, loses comments, reorders and destroys hand crafted include, etc directives. License Of This Document 1.113.4 Properly manage the NFS, smb, and nmb daemons Weight 4 Geoff Robertson Copyright c 2005, 2003 Angus Lees , Geoffrey Robertson and Nick Urbanik . Permission is granted to make and distribute verbatim copies or modified versions of this document provided that this copyright notice and this permission notice are preserved on all copies under the terms of the GNU General Public License as published by the Free Software Foundation—either version 2 of the License or (at your option) any later version.