rsync adalah utility u/ memindah2 file/sinkronisasi file.
Kata manualnya sih rsync bisa digunakan sbb :

1. for copying local files. This is invoked when neither source nor destination path contains a : separator
2. for copying from the local machine to a remote machine using a remote shell program as the transport (such as rsh or ssh). This is invoked when the destination path contains a single : separator.
3. for copying from a remote machine to the local machine using a remote shell program. This is invoked when the source contains a : separator.
4. for copying from a remote rsync server to the local machine. This is invoked when the source path contains a :: separator or a rsync:// URL.
5. for copying from the local machine to a remote rsync server. This is invoked when the destination path contains a :: separator.
6. for listing files on a remote machine. This is done the same way as rsync transfers except that you leave off the local destination.

So, yuk mari kita buktikan.

Anggap saja server utama ipnya 10.10.10.75 dan server backupipnya 10.10.10.60
Nah rsync modenya nanti pakai yang over ssh.

Login ke 10.10.10.60, di directory /home ketik :
# ssh-keygen -f qlogin -t rsa
untuk password langsung enter saja, perintah ini akan mengenerate private (qlogin) dan public key (qlogin.pub)

Selanjutnya copykan qlogin.pub ke server 10.10.10.75 di directory homeuser/.ssh dan rename menjadi authorized_keys2, spt ini nih hasilnya : /home/rahma/.ssh/authorized_keys2

Kita tes, sukses ga login ssh scr otomatis..
Login ke 10.10.10.60, masuk ke directory dimana qlogin berada dan ketik
# ssh -i qlogin rahma@10.10.10.75

OK, setelah sshnya lantjar djaja, tinggal install rsyncnya.. (spt biasa wes.. ndak usah dijelasin yak :P)...

Nah untuk perintah sinkronisasi/backup filenya spt ini :
masuk ke dir dimana qlogin (private keynya berada), kebetulan punyaku di /home
# cd /home
# /usr/local/rsync/bin/rsync -e "ssh -i qlogin -l rahma -p 2223" -avz rahma@10.10.10.75:/home/www /home/BACKUP75/

sent 1636 bytes received 2421838595 bytes 3734526.19 bytes/sectotal size is 2421962606 speedup is 1.00

# cd /usr/local/mysql/lib/mysql/
# cp * /usr/local/lib
# cd /usr/local/mysql/include/
# cp * /usr/local/include/

Download cyrus-sasl-2.1.19 dan patchnya, kemudian ekstrak dan lakukan patching

# cd /cyrus-sasl-2.1.19
# patch -p1 < ../cyrus-sasl-2.1.19-checkpw.c+sql.c.patch. # ./configure --enable-static --enable-shared --enable-sql --with-mysql=/usr/local/mysql --enable-login --disable-otp --disable-ntlm # make && make install # ln -s /usr/local/lib/sasl2 /usr/lib/sasl2 # cd /usr/local/lib/sasl2 # cp *sql* /lib/ # vi /usr/local/lib/sasl2/smtpd.conf pwcheck_method: auxprop auxprop_plugin: sql sql_engine: mysql mech_list: DIGEST-MD5 CRAM-MD5 PLAIN LOGIN sql_engine: mysql sql_hostnames: localhost sql_user: dbmail sql_passwd: s3cr3t sql_database: dbmail sql_verbose: yes sql_select: SELECT passwd FROM dbmail_users WHERE userid = '%u@%r' # cd postfix-2.4.5 # make tidy
# make makefiles CCARGS="-DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/local/include/sasl" AUXLIBS="-L/usr/local/lib/ -lsasl2" atau
# make makefiles CCARGS="-DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/local/include/sasl -DHAS_MYSQL -I/usr/local/mysql/include/mysql" AUXLIBS="-L/usr/local/lib/ -lsasl2 -L/usr/local/mysql/ -lmysqlclient -lz -lm"

# make install

tambahkan baris berikut pada /etc/postfix/main.cf
smtpd_recipient_restrictions =
reject_unauth_pipelining
reject_non_fqdn_recipient
reject_unknown_recipient_domain
permit_mynetworks
permit_sasl_authenticated
reject_unauth_destination
permit

broken_sasl_auth_clients = yes
smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous

=== Selesai ===

/usr/local/sbin/saslauthd:
libgssapi.so.7 => /usr/lib/libgssapi.so.7 (0x2807e000)
libkrb5.so.7 => /usr/lib/libkrb5.so.7 (0x2808c000)
libasn1.so.7 => /usr/lib/libasn1.so.7 (0x280c4000)
libroken.so.7 => /usr/lib/libroken.so.7 (0x280e5000)
libcrypt.so.2 => /lib/libcrypt.so.2 (0x280f3000)
libcrypto.so.3 => /lib/libcrypto.so.3 (0x2810b000)
libcom_err.so.2 => /usr/lib/libcom_err.so.2 (0x28202000)
libpam.so.2 => /usr/lib/libpam.so.2 (0x28204000)
libc.so.5 => /lib/libc.so.5 (0x2820b000)

/usr/sbin/postfix:
libsasl2.so.2 => /usr/local/lib/libsasl2.so.2 (0x28083000)
libc.so.5 => /lib/libc.so.5 (0x28096000)
libcrypt.so.2 => /lib/libcrypt.so.2 (0x28170000)

/usr/libexec/postfix/smtpd:
libsasl2.so.2 => /usr/local/lib/libsasl2.so.2 (0x280b6000)
libc.so.5 => /lib/libc.so.5 (0x280c9000)
libcrypt.so.2 => /lib/libcrypt.so.2 (0x281a3000)


mail-h# telnet smtpku.co.id 25
Trying 203.134.232.67...
Escape character is '^]'.
220 smtpku.co.id ESMTP Postfix
ehlo a
250-PIPELINING
250-SIZE 5120000
250-VRFY
250-ETRN
250-AUTH LOGIN PLAIN DIGEST-MD5 CRAM-MD5
250-AUTH=LOGIN PLAIN DIGEST-MD5 CRAM-MD5
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN