Cisco device config tracking, archive & roolback

tracking config:
(conf)#archive
(conf-archive)#log config (啟用runngung-config比對)
(conf-archive)#path flash:/rollback (指定RollBack的備份位置)
(conf-archive-log-config)#logging enable (啟用設定檔稽核紀錄)
(conf-archive-log-config)#loging size 500 (預設紀錄100筆資訊，修改為500筆)
(conf-archive-log-config)#hidekeys (隱藏稽核記錄中的密碼欄位)
(conf-archive-log-config)#notify syslog (選項，可配合將資訊匯出到syslog server)
(conf)#logging host 10.10.10.10 (選項，指定要匯出的syslog主機IP)

show:
#show archive log config all (顯示輸入過的設定檔內容) 
idx   sess           user@line      Logged command
    1     1        console@console  |  logging enable
    2     1        console@console  |  logging size 500
    3     1        console@console  |  hidekeys
    4     1        console@console  |  notify syslog
    5     4        console@console  |router ospf 1
    6     4        console@console  | network 1.1.1.1 0.0.0.0 area 0
    7     5        console@console  |archive
    8     5        console@console  | log config
    9     5        console@console  |  no notify syslog

archive & rollback config:
#archive config (封存現在的running-config狀態)
#show archive (列出可還原的封存點)
#more flash:/rollback-1 (顯示封存點內容)
#configure replace flash:/rollback-1 (還原到running-config到特定的封存點)

show:
#show archive (列出封存點)
There are currently 6 archive configurations saved.
The next archive file will be named flash:/rollback-6
Archive #  Name
   0       
   1       flash:/rollback-1
   2       flash:/rollback-2
   3       flash:/rollback-3
   4       flash:/rollback-4
   5       flash:/rollback-5 <- Most Recent

#show archive config differences (比對startup-config與running-config的差異並顯示)
Contextual Config Diffs:
router ospf 1
+network 5.5.5.5 0.0.0.0 area 0
router ospf 1
-network 7.7.7.7 0.0.0.0 area 0
-network 8.8.8.8 0.0.0.0 area 0

#show archive config incremental-diffs flash:rollback-6
(比對running-config與封存點的差異並顯示)
!List of Commands:
end
!No changes were found

#more flash:/rollback-1 (顯示封存點的內容)
(archive的running-config內容)