Update Samba idmap

Environment:
OS: CentOS 5.2
Samba: 3.5.9-44

1. Backup you old idmap data "net idmap dump /var/lib/samba/winbindd_idmap.tdb > /root/idmap-backup.txt" (please clarify your idmap location, you can use this command "locate winbindd_idmap.tdb") 
2. Use vi or nano to modify your idmap data.
3. remove all files inside /var/lib/samba/ ("rm -fr /var/lib/samba")
4. restart winbind ("/etc/init.d/winbind restart")
5. import new imap data to tdb file "cat /root/idmap-backup.txt | net idmap restore"
6. Update System Info "getent passwd", "getent group"

To verify the new winbind_idmap db please dump the tdb file again (step 1) to check the data.

Build Samba RPM from Source (samba-3.5.8)

Environment:

OS: CentOS 5.6

Kernel: 2.6.18-238.5.1.el5
Unofficial RPM Build for RHEL link

1. install development tools "yum -y groupinstall 'Development Tools' "
2. Download Samba Source Link
3. Extract source file (samba-3.5.8.tar.gz)
4. cd amba-3.5.8/packaging/RHEL
5. nano samba.spec
6. Search the line "BuildRequires" update "keyutils-devel" to "keyutils-libs-devel"
7. Search the line "cc="$cc" CLFLAGS= [..skipped..]   ./configure" and add this new line "--with-cifsumount \"
8. run "sh makerpms.sh &>/root/samba.build.log"
9. When the end of the process has shown "error: Installed (but unpackaged) file(s) found:", please add those mentioned file in the "samba.spec" file at the end of "%files" section, and then repeat step 8.
10. Now the new rpm files should built in "/usr/src/redhat/RPMS/i386"
11. You need to uninstall the installed samba please run "rpm -e samba-common samba samba-client --nodeps"
12. And you need to uninstall some dependent files, please run "rpm -e libsmbclient libtdb libtalloc --nodeps"
13. Install new the samba rpms run "rpm -ivh samba*"

Setup Netatalk for Cent OS 5.6 (Guest Login ONLY)

Environment:
OS: Cent OS 5.6
Kernel: 2.6.18-238.5.1

Assumption:
You had installed a support netatalk kernel.

1. Download the Netatalk RPM file (Link - netatalk-2.0.5-1.el5.i386.rpm).
2. rpm -ivh netatalk-2.0.5-1.el5.i386.rpm
3. Update /etc/atalk/netatalk.confATALK_MAC_CHARSET='UTF8-MAC'
   ATALKD_RUN=no
   PAPD_RUN=no
   CNID_METAD_RUN=yes
   AFPD_RUN=yes
   TIMELORD_RUN=no
   A2BOOT_RUN=no
4. Append the below line to  /etc/atalk/afpd.conf "Mac Share" -uamlist uams_guest.so -tcp -noddp
5. Append the below line to /etc/atalk/AppleVolumes.default/home/public    "Share" options:usedots,invisibledots,noadouble ea:none
6. Create a new file with below content /etc/avahi/services/afpd.service
   <?xml version="1.0" standalone='no'?><!--*-nxml-*-->
   <!DOCTYPE service-group SYSTEM "avahi-service.dtd">
   <service-group>
       <name replace-wildcards="yes">%h Drive</name>
       <service>
           <type>_afpovertcp._tcp</type>
           <port>548</port>
       </service>
       <service>
           <type>_device-info._tcp</type>
           <port>0</port>
           <txt-record>model=Xserve</txt-record>
       </service>
   </service-group>
7. run /etc/init.d/avahi-daemon start
8. run /etc/init.d/atalk start
9. If you share the same folder with samba please update your smb.conf with below options
   veto files = /._*/.DS_*/.AppleDB/.AppleDouble/.AppleDesktop/Network Trash Folder/TheFindByContentFolder/TheVolumeSettingsFolder/Temporary Items/.TemporaryItems/.VolumeIcon.icns/Icon?/.FBCIndex/.FBCLockFolder/
   delete veto files = Yes
   vfs objects = netatalk

Netatalk Setup Reference
Netatalk Setup Reference