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Zero Page Server/Mirroring

(from http://222.122.13.152/bbs/board.php?bo_table=pl_linux&wr_id=153 )

กœปฌ ํ˜ธŠคํŠธ ‹œŠคํ…œ„ —…ํ•˜Š” ฐฉฒ•œกœŠ” tar •„ดธŒ ดšฉํ•˜—ฌ ฌถ‚˜ ••ถ•ํ•˜Š” ฐฉฒ•ด žˆณ , cpio, dump, dd œ ํ‹ธฆฌํ‹ฐ ดšฉํ•˜—ฌ ํ•˜“œ ””Šคํฌ —…ํ•˜Š” ฐฉฒ•ด žˆ‹ค.
ดฒˆํ˜ธ—„œŠ” ดŸฌํ•œ œ ํ‹ธฆฌํ‹ฐ ‚ฌšฉํ•˜€ •Šณ , Ÿฌง(Mirroring) ธฐŠฅ„ ดšฉํ•˜—ฌ กœปฌ‹œŠคํ…œ ˜Š” ›ฒฉ„œ„˜ ฐดํ„ ทธŒ€กœ ณต‚ฌํ•˜—ฌ —…ํ•˜Š” ฐฉฒ•— Œ€ํ•ด„œ •Œ•„ด…‹ˆ‹ค......

# 1. Ÿฌง(Mirroring)

 ˆ“œํ–‡ ฆฌˆ…Šค ‚ฌดํŠธ˜ ‹คšดกœ“œ ํŽ˜ด€— ณดฉด FTP Ÿฌ ‚ฌดํŠธ“คด งŽด งํฌ˜–ด žˆ
Œ„ ฐœฒฌํ•  ˆ˜ žˆ‹ค. Ÿฌ ‚ฌดํŠธŠ” ‚ฌดํŠธ˜ ฐดํ„ ทธŒ€กœ ˜ฎฒจ™€ ‚ฌดํŠธ™€ ˜‘
ฐ™€ „œ„Šค  œณตํ•˜Š” ฒƒด‹ค. ›ฒฉ „œ„˜ ฐดํ„ ›ณธ ทธŒ€กœ ณต‚ฌํ•ด ™€„œ ›ฒฉ „œ
„™€ ˜‘ฐ™€ ฐดํ„ƒํƒœ œ €‹œํ‚คŠ” ฒƒ„ Ÿฌง(Mirroring) ด ํ•˜Š”ฐ ‹คฅธ ํ‘œํ˜„œกœ
Š” „œ„ ™ธฐํ™”(server syncronization)ณ „ ํ•œ‹ค.
Ÿฌง— ˜ํ•ด„œ ›ฒฉ „œ„˜ ฐดํ„€ €ํ•˜ฉด Ÿฌง „œ„„ ทธ— ”ฐ„œ €ํ•˜ฒŒ ˜ฉฐ
ํ•ญƒ Ÿฌง „œ„Š” ›ฒฉ „œ„˜ ™ํ•œ ฐดํ„ƒํƒœ œ €ํ•˜ฒŒ œ‹ค. Ÿฌง€ กœปฌ ‹œŠค
ํ…œ˜ ฐดํ„ —…ํ•  •Œ„  šฉํ•  ˆ˜ žˆœฉฐ „œ„งˆ‹ค ™ํ•œ ฐดํ„ตฌกฐ œ €ํ•˜ณ ž
ํ•  •Œ ด ฐฉฒ•ด ‚ฌšฉœ‹ค.

# 2. Ÿฌง „ตฌ(rsync)

—ฌŸฌŒ€˜ „œ„ „‚ฐํ•˜—ฌ „œ„ ™ธฐํ™”ํ•˜Š”ฐ rsync œ ํ‹ธฆฌํ‹ฐ€ งŽด ‚ฌšฉœ‹ค.
rsyncŠ” ฃจํŠธ˜ ถŒํ•œ—†ด „œ„กœ€„ฐดํ„กœ  ฅดฒŒ  „†กฐ›„ ˆ˜ žˆœฉฐ, ›ฒฉ „œ„™€
Ÿฌ „œ„™€  „†ก ฐดํ„ „ตํ•˜—ฌ €ํ™”œ ฐดํ„  €žฅํ•  ˆ˜ žˆ‹ค.
˜ํ•œ SSH ดšฉํ•˜ฉด rsync „œ„€ ตฌถ•˜–ด žˆ€ •Š•„„ Ÿฌง„ ํ•  ˆ˜ žˆŠ” ด ด žˆ
‹ค.

# 3. rsync „˜

 ˆ“œํ–‡ ฆฌˆ…Šค 9—„œŠ” ตœ‹  „ „˜ rsync RPM ํŒจํ‚ค€ €›ํ•˜€กœ „‹จํžˆ RPM ํŒจํ‚ค€
„˜ํ•˜—ฌ ‚ฌšฉํ•œ‹ค. ทธŸฌฉด šฐ„ , rsync ํŒจํ‚ค€€ „˜˜–ด žˆŠ”€ ํ™•ธํ•ด ณธ‹ค...

      [root@localhost  root]#  rpm  -qa  |  grep  rsync
      rsync-2.5.5-4
      [root@localhost  root]#  _ ----->Œ€ธฐค‘ธ ปค„œ ˜ธํ•จ.

ƒธฐ ํ™”ฉดŠ” ‹ฌฆฌ •„ฌดŸฐ rsync „ „  •ณด€ ํ‘œ‹œ˜€ •ŠŠ”‹คฉด rsync€ ‹œŠคํ…œ— „˜
˜–ด žˆ€ •ŠŠ” ฒƒด€กœ, rsync-2.5.5-4.i386.rpm ํŒจํ‚ค€ ตฌํ•ด ‹คŒ ฐ™ด „˜ํ•œ‹ค.
„˜ „— ฐ˜“œ‹œ ฆฌ ตฌํ•œ ํŒจํ‚ค€€ žˆŠ” ”” ‰ํ† ฆฌกœ “ค–ด„ํ›„ „˜ํ•˜Š”ฒƒ„ žŠ€ งž.


      [root@localhost  RPMS]#  rpm  -ivh  rsync-2.5.5-4.i386.rpm
       €„  ค‘...                           ############################ [100%]
            1 : rsync                        ############################ [100%]
      [root@localhost  RPMS]#  _

  ฐธณ ‚ฌํ•ญ - rsync RPM ํŒจํ‚ค€ „˜‹œ ˜กด„ ˜คฅ˜€ ‚˜˜ฌ•Œ
rsync RPM ํŒจํ‚ค€Š” redhat-lsb ํŒจํ‚ค€™€ ˜กด„„ €€€กœ, „˜‹œ
˜กด„ ˜คฅ˜€ ‚˜˜ฌ •ŒŠ” redhat-lsb-1.3-1.i386.rpm„  € „˜ํ•œ ํ›„
— rsync ํŒจํ‚ค€ „˜ํ•œ‹ค.

# 4. SSH ดšฉํ•œ ›ฒฉ „œ„ ฐดํ„Ÿฌง

rsync „œ„ ตฌถ•ํ•˜€ •Š€ ƒํƒœ—„œ rsyncกœ SSH ดšฉํ•˜—ฌ ฐดํ„ —…ํ•˜Š” ฐฉฒ•
€ ‹คŒ ฐ™‹ค. rsync ‚ฌšฉฒ•— €ํ•œ ž„ธํ•œ ฒƒ€ ž ‹œ ํ›„— ‚ดํŽดณดธฐกœ ํ•˜ž...

rsync -avzr --delete -e ssh ›ฒฉ„œ„:ฐดํ„ฒฝกœ —…ฒฝกœ

ทธŸฌฉด 192.168.1.13 ํดด–ธํŠธ—„œ 192.168.1.1 ›ฒฉ „œ„˜ FTP ฐดํ„ SSH ดšฉ
ํ•˜—ฌ Ÿฌงํ•˜Š” ฐฉฒ•€ ‹คŒ ฐ™‹ค...

       [root@localhost  root]#  rsync  -avz  --delete  -e  ssh  192.168.1.1:/ftp/pub/redhat9/
        /mirror/redhat9
       root's  password:
       receiving  file  list  ...  done
       ./
       shrike-i386-disc1.iso
       shrike-i386-disc2.iso
       shrike-i386-disc3.iso
       wrote  64 bytes  read  1855717755 bytes  2449792.50 bytes/sec
       total  size  is  1855094784  speedup  is  1.00
       [root@localhost  root]#  _
 

›ฒฉ „œ„˜ †Œ™€ Ÿฌงํ•˜ณ ž ํ•˜Š” ฐดํ„˜ ฒฝกœ € •ํ•œ ํ›„— -e ssh ˜ต…˜„
‚ฌšฉํ•˜—ฌ ›ฒฉ „œ„—  ‘†„ ํ•˜ฒŒ ˜ฉด ํŒจŠค›Œ“œ ฌปฒŒ ˜Š”ฐ, ›ฒฉ „œ„˜ ฃจํŠธ ํŒจŠค
›Œ“œ ž… ฅํ•œ‹ค. งŒ ฐ˜ ‚ฌšฉž „ •œกœ ด ช… „ ˆ˜ํ–‰ํ•œ‹คฉด ›ฒฉ „œ„—„ ™ํ•œ
„ •ด กดžฌํ•˜—ฌ• ํ•˜ฉฐ, ›ฒฉ „œ„˜ „ • ํŒจŠค›Œ“œ ž… ฅํ•œ‹ค.
SSHกœ ›ฒฉ „œ„—  ‘†ด ด„€ฉด rsync— ˜ํ•ด„œ ›ฒฉ „œ„˜ ฐดํ„ Ÿฌง „œ„
˜ € •œ ฒฝกœกœ ‹คšดกœ“œจ„ ˆ˜ žˆ‹ค.
  ฐธณ ‚ฌํ•ญ - SSH ดšฉํ•œ rsync ฐดํ„™ธฐํ™” œ„ํ•œ ›ฒฉ „œ„˜ ํ™˜ฒฝ
ํดด–ธํŠธ—„œ rsyncกœ SSH ดšฉํ•˜—ฌ ›ฒฉ „œ„—  ‘†ํ•˜ธฐ  „—
›ฒฉ „œ„Š” ฐ˜“œ‹œ SSH „œ„€ ž‘™ํ•˜ณ  žˆ–ด•  ‘†ด €Šฅํ•˜‹ค.
ฆ‰, /etc/init.d/sshd restart ‹คํ–‰ํ•˜—ฌ ํดด–ธํŠธ€ SSH „œ„—  ‘
†ํ•  ˆ˜ žˆ„ก ฆฌ €„ํ•ด †“ณ  žˆ–ด• ํ•œ‹คŠ” ˜ˆธฐ‹ค....

# 5. rsync „œ„ „ •(/etc/rsyncd.conf)
•ž„œ SSH ดšฉํ•˜—ฌ Ÿฌง„ ํ•˜Š” ฐฉฒ•— Œ€ํ•ด •Œ•„ณด•˜‹ค. SSH „œ„€ ตฌถ•˜€ •Š€
›ฒฉ „œ„—„œŠ” ํดด–ธํŠธ€ Ÿฌงํ•  ˆ˜ žˆ„ก rsync „œ„ ตฌถ•ํ•ด• ํ•œ‹ค. rsync „œ
„˜ „ • ํŒŒ€ /etc/rsyncd.conf ํŒŒธฐ, ด ํŒŒ€ ž™œกœ ƒ„˜€ •Šœ€กœ ‚ฌ
šฉž€ ง ‘ งŒ“ค–ด ‚ฌšฉํ•ด• ํ•œ‹ค. ด ํŒŒ˜ „ • ํ˜•‹€ ‹คŒ ฐ™‹ค.


 
           [rsync „œ„Šคช…]
                        comment  =  rsync„œ„— Œ€ํ•œ „ช…
                        path  =  Ÿฌง  ฐดํ„˜ ฒฝกœ
                        uid  =  ‚ฌšฉž ID
                        gid  =  ทธ ID
                        use  chroot  =  yes  /  no
                        read  only  =  yes  /no
                        host  allow  =  •„ดํ”†Œ
                        max  connections  =  ตœŒ€ ‘†ํšŸˆ˜
                        timeout  =  ดˆ‹จœ„˜ ‹œ„
 

โ‘  [rsync „œ„Šคช…] : rsync „œ„Šค˜ ด„(ชจ“ˆช…)ด‹ค. ‚ฌšฉž€ ›ํ•˜Š” ํ˜•ํƒœกœ „œ„Šคช…
„ € •ํ•  ˆ˜ žˆ‹ค. ˜ˆ) rh90
โ‘ก comment : rsync „œ„Šค— Œ€ํ•œ „ช…ด‹ค. ˜ˆ) Red Hat Linux 9.0 Mirror
โ‘ข path : Ÿฌง „œ„Šค   ฐดํ„˜ ฒฝกœ € •ํ•œ‹ค. ˜ˆ) /data/linux90
โ‘ฃ uid, gid : ฐฐ ํŒŒ  „†กํ•˜Š” ‚ฌšฉž™€ ทธ˜ •„ด””กœ, ตช…  ‘†ด €Šฅํ•˜„ก ธฐณธฐ’
€ nobodyกœ „ •˜–ด žˆœ€กœ ด ฐ’„ ทธŒ€กœ ‚ฌšฉํ•œ‹ค.
โ‘ค use chroot : pathกœ € •œ ฒฝกœ root ƒœ„ ”” ‰ํ† ฆฌกœ ‚ฌšฉํ•œ‹ค. ‚ฌšฉž€ ‹คฅธ ƒœ„
”” ‰ํ† ฆฌกœ  ‘ํ•˜€ ชปํ•˜„ก ํ•˜ธฐ œ„ํ•ด„œ ณด•ˆƒ ํ•„š”กœ ํ•˜€กœ yesกœ „
 •ํ•œ‹ค.
โ‘ฅ read only : ํดด–ธํŠธ€ „œ„—„œ ฐดํ„งŒ ‹คšดกœ“œ ํ•˜Š” ฒฝšฐ—Š” ด ˜ต…˜„ yesกœ „
 •ํ•˜—ฌ ฝธฐ  „šฉ ถŒํ•œ„ €—ฌํ•ด• ํ•œ‹ค. งŒ —…กœ“œ€ €Šฅํ•˜„ก ํ•˜ คฉด
noกœ „ •ํ•˜€งŒ ํŠ„ํ•œ ฒฝšฐ€ •„‹ˆฉด yesกœ „ •ํ•œ‹ค.
โ‘ฆ host allow :  ‘† ํ˜ธŠคํŠธ  œํ•œํ•˜€ •Šœฉด ˆ„ตฌ‚˜ ฐดํ„ € ธฐˆ ˆ˜ žˆธฐ •Œฌธ— ต
ช…˜ FTP Ÿฌ „œ„€ •„‹ˆฉด ณด•ˆƒ rsync „œ„—  ‘† €Šฅํ•œ ํ˜ธŠคํŠธ˜
•„ดํ” € •ํ•˜Š” ฒƒด •ˆ „ํ•˜‹ค.
โ‘ง max connections : ™‹œ—  ‘† €Šฅํ•œ  ‘†ํšŸˆ˜ „ •ํ•œ‹ค. ฌด œํ•œ€ 0œกœ „ •ํ•œ‹ค.
โ‘จ timeout : ํดด–ธํŠธ˜  ‘†ด idle ƒํƒœ— žˆ„ •Œ  ‘†„ Š–ด„ฆด ‹œ„„ „ •ํ•œ‹ค.
ธฐณธฐ’€ 60ดˆด‹ค.

‹คŒ€ €ธˆŒ€ ‚ดํŽดณธ „ •„ €€ณ  ž‘„ํ•œ /etc/rsyncd.conf ˜ˆ œ „ • ํŒŒด‹ค.

   [root@localhost  /]#  cat  >  /etc/rsyncd.conf
   [rh9iso]
   comment = Red Hat Linux 9 ISO Mirror
   path = /data/ftp/pub/redhat9
   uid = nobody
   gid = nobody
   use chroot = yes
   read only = yes
   host allow = 192.168.1.13
   max connections = 5
   timeout = 60
 
   [root@localhost  /]#  _

# 6. /etc/xinetd.d/rsync „ •

rsync „œ„ŠคŠ” Šˆํฐชฌ xinetd— ˜ํ•ด„œ ž‘™ํ•˜ธฐ •Œฌธ— /etc/xinetd.d/rsync ํŒŒ„
„ •ํ•ด –ด• ํ•œ‹ค. RPM ํŒจํ‚ค€ „˜‹œ ด ํŒŒด  œณต˜€กœ ด ํŒŒ €šดฐ—„œ ‹คŒ
ํ™”ฉด ฐ™ด disable = yes disable = noกœ €ฒฝํ•œ‹ค.


      -------------------------------------------------------------------------------
       root@localhost:/
      -------------------------------------------------------------------------------
      service rsync
      {
                 disable              =  no
                 socket_type        =  stream
                 wait                  =   no
                 user                  =  root
                 server               =  /usr/bin/rsync
                 log_on_failure     +=  USER ID
       }
       _ ----->Œ€ธฐค‘ธ ปค„œ ˜ธํ•จ.
       ~
 
       [˜–ด][™„„][‘ฒŒ‹]                                                11,0-1                     ชจ‘
       --------------------------------------------------------------------------------
ทธŸฐ ‹คŒ xinetd Šˆํ ฐชฌ„ ‹ค‹œ ‹คํ–‰ํ•˜—ฌ rsync„œ„Šค€ ž‘™  ˆ˜ žˆ„ก ํ•œ‹ค.

       [root@localhost   /]#  /etc/init.d/xinetd  restart
       xinetd    •€ํ•จ :                                                                              [   ํ™•ธ   ]
       xinetd  („) ‹œž‘ํ•ฉ‹ˆ‹ค :                                                                   [   ํ™•ธ   ]
       [root@localhost  /]#  _
 
rsync „œ„ŠคŠ” 873 „œ„Šค ํฌํŠธ ดšฉํ•˜€กœ, ํ…”„œกœ ด ํฌํŠธกœ  ‘†ํ•˜—ฌ rsyncd  •
ณด€ ‚˜˜คŠ”€ ํ™•ธํ•œ‹ค. งŒ  ‘†ด ด„€€ •ŠŠ”‹คฉด ฐฉํ™”ฒฝ„  €ํ•˜‚˜
/etc/rsyncd.conf ํŒŒ˜ „ •ด  •ํ™•ํ•œ€ ฒดํฌํ•œ‹ค.

       [root@localhost  /]#  telnet  localhost  873
       Trying  127.0.0.1...
       Connected to  localhost.localdomain  (127.0.0.1)
       Escape  character  is  '^]' .
       @RSYNCD:  26
       _ ----->Œ€ธฐค‘ธ ปค„œ ˜ธํ•จ.

# 7. rsync ‚ฌšฉฒ•

SSH ดšฉํ•˜—ฌ rsync Ÿฌงํ•˜Š” ฐฉฒ•—„œ „‹จํžˆ ช… ˜ “ฐž„— Œ€ํ•ด„œ ด‚ดํŽดดค‹ค.
ทธŸฌฉด rsync˜ ‚ฌšฉฒ•— Œ€ํ•ด„œ ž„ธํžˆ •Œ•„ณดž.........

rsync [˜ต…˜] rsync„œ„†Œ::„œ„Šคช… Ÿฌฒฝกœ

rsync—„œ ž ‚ฌšฉ˜Š” ˜ต…˜€ -avzrด‹ค. -a ˜ต…˜€ •„ดธŒ ชจ“œดฉฐ, -v ˜ต…˜€
ฒ˜ฆฌ •„ ํ™”ฉดƒ— ถœ ฅ˜„ก ํ•˜Š” ฒƒดณ , -zŠ”  „†ก‹œ ••ถ•ชจ“œดฉฐ, -r ˜ต…˜€ ํ•˜œ„
”” ‰ํ† ฆฌ ˜ธํ•˜Š” ˜ต…˜ด‹ค. ทธ™ธ ž„ธํ•œ ˜ต…˜€ man ํŽ˜ด€ ฐธณ ํ•˜ž.
ทธŸฌฉด rsyncกœ Ÿฌงํ•˜Š” ฐฉฒ•„ —ฐŠตํ•ด ณดธฐกœ ํ•˜ž....^_^*

7-1. rsync „œ„Šค ชจ“ˆ(„œ„Šคช… „ช…) •Œ•„ณดธฐ
•ž„œ ž‘„ํ•œ /etc/rsyncd.conf ˜ˆ œ ํŒŒ„ ํ†ตํ•˜—ฌ ›ฒฉ rsync „œ„—„œ –ด–ค „œ„Šค
ํ˜„žฌ  œณตํ•˜Š”€ •Œ•„ณดณ ž ํ•  •ŒŠ” ‹คŒ ฐ™€ ช… „ ‹คํ–‰ํ•œ‹ค.

rsync „œ„†Œ



       
       [root@localhost  root]#  rsync  192.168.1.1::
       rh9iso               Red Hat Linux 9 ISO Mirror
       [root@localhost  root]#  _    
ด •Œ ถœ ฅ˜Š” ฒƒ€ /etc/rsyncd.conf ํŒŒ—„œ „œ„Šคช…(ชจ“ˆช…) commentกœ „ •
œ ฉ”‹œ€ด‹ค.

7-2. กœปฌ ‹œŠคํ…œ ฐดํ„—…
rsync ดšฉํ•˜—ฌ กœปฌ ‹œŠคํ…œ˜ ฐดํ„ —…ํ•˜ คฉด ‹คŒ ฐ™€ ช… „ ‚ฌšฉํ•œ‹ค.

rsync -avzr --delete —…†ŒŠคฒฝกœ —… ฒฝกœ

--delete ˜ต…˜€ rsync„œ„˜ —…ํ•  ฐดํ„™€ ํดด–ธํŠธ˜ ฐดํ„™€ „ตํ•˜—ฌ €ฒฝ
œ ฐดํ„ ถ”€ํ•˜‚˜ ‚ญ œํ•˜ณ ž ํ•  •Œ ‚ฌšฉํ•˜Š” ฐดํ„„ต ˜ต…˜ด‹ค.
ทธŸฌฉด /rh9hwp ”” ‰ํ† ฆฌ— žˆŠ” ํŒŒ„ /mirror/rh9hwp_backup ”” ‰ํ† ฆฌกœ —…ํ•ด
ณดž.........

         [root@localhost  root]#  rsync  -avzr  /rh9hwp/  /mirror/rh9hwp_backup
         building  file  list  ...  done
         created  directory  /mirror/rh9hwp_backup
         ./
         งจ“œ ˆดํฌ  9.1.hwp
         ช… –ด‚ฌ „  .hwp
          œ1€„˜ํŽธ  (60-151p).hwp
          œ2€ (152-731p).hwp
          œ3€ (732-1115p).hwp
         wrote  36854994 bytes  read 100 bytes  1890004.82 bytes/sec
         total  size  is  42531514  speedup  is 1.15
         [root@localhost  root]#  ls  /mirror/rh9hwp_backup
         งจ“œ ˆดํฌ  9.1.hwp   œ1€„˜ํŽธ (60-151p).hwp      œ3€ (732-1115p).hwp
         ช… –ด‚ฌ „  .hwp       œ2€ (152-731p).hwp
         [root@localhost  root]#  _
 
          /mirror/rh9hwp_backup ”” ‰ํ† ฆฌกœ ฐดํ„€ —…˜ณ  žˆŒ„ ํ™•ธํ•  ˆ˜ žˆ‹ค.

7-3. ›ฒฉ „œ„˜ ฐดํ„—…

rsync -avz „œ„†Œ::ชจ“ˆช…(„œ„Šคช…) —… ฒฝกœ

ดฒˆ—Š” ›ฒฉ „œ„˜  ˆ“œํ–‡ฆฌˆ…Šค9 ฐฐํฌํŒ ด€ ํŒŒ„ Ÿฌง„ ํ•ดณดž....  €
rsync „œ„†Œ:: ‹คํ–‰ํ•˜—ฌ ชจ“ˆช…„ ํ™•ธํ•˜—ฌ ›ฒฉ „œ„—  ‘†ํ•ด Ÿฌง˜ฒŒ ํ•˜ฉด
œ‹ค.


         [root@localhost  root]#  rsync  192.168.1.1::
         rh9iso               Red Hat Linux 9 ISO Mirror
         [root@localhost  root]#  rsync  -avz  192.168.1.1::rh9iso  /mirror/redhat9
         receiving  file  list  ...   done
         ./
         shrike-i386-disc1.iso
         shrike-i386-disc2.iso
         shrike-i386-disc3.iso
         wrote 118 byets  read 1855717775 bytes  4995202.94 bytes/sec
         total  size  is  1855094784  speedup  is  1.00
         [root@localhost  root]#  _
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