Gi?i thch v? m?t chuy?n Khu DNS

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ID c?a bi: 164017 - Xem s?n ph?m m bi ny p d?ng vo.
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TM T?T

Bi vi?t ny th?o lu?n v? cc tr?ng h?p m c th? kch ho?t tn mi?n H? th?ng (DNS) khu chuy?n, m?c ch c?a giao d?ch chuy?n vng, v lm th? no cc qu tr?nh ho?t ?ng.

THNG TIN THM

?nh ngh?a c?a m?t chuy?n giao Zone: A Zone chuy?n l m?t thu?t ng? dng ? ch? qu tr?nh m theo cc n?i dung c?a m?t t?p tin khu DNS ?c sao chp t? m?t my ch? DNS chnh ?n m?t my ch? DNS th? c?p.

M?t chuy?n giao Zone s? x?y ra trong b?t k? c?a cc k?ch b?n sau y:
  • Khi kh?i ?ng d?ch v? DNS trn my ch? DNS th? c?p.
  • Khi th?i gian lm m?i h?t h?n.
  • Khi ang lu cc thay ?i vo t?p tin ti?u khu v c l m?t thng bo Danh sch.
Khu v?c chuy?n lun ?c kh?i x?ng b?i cc my ch? DNS th? c?p. Cc h? ph?c v? DNS chnh ch? n gi?n l cu tr? l?i yu c?u cho m?t chuy?n giao Zone.

Network Monitor Capture chu?i sau y cho th?y qu tr?nh khi c? hai d?ch v? DNS b?t ?u trn my ch? DNS trung h?c ho?c cc lm m?i th?i gian h?t h?n:

Khung 1: H? ph?c v? DNS th? c?p - JH40PS - yu c?u b?n ghi SOA t? cc my ch? DNS chnh - SERVER - cho cu h?i DNS Zone DOMAIN.COM. lu ? Lo?i.

JH40PS my ch? DNS 0x4000:Std Qry cho domain.com. lo?i SOA trn l?p INET addr.

DNS: 0x4000:Std Qry cho domain.com. lo?i SOA trn l?p INET addr.
    DNS: Query Identifier = 16384 (0x4000)
    DNS: DNS Flags = Query, OpCode - Std Qry, RCode - No error
        DNS: 0............... = Query
        DNS: .0000........... = Standard Query
        DNS: .....0.......... = Server not authority for domain
        DNS: ......0......... = Message complete
        DNS: .......0........ = Iterative query desired
        DNS: ........0....... = No recursive queries
        DNS: .........000.... = Reserved
        DNS: ............0000 = No error
    DNS: Question Entry Count = 1 (0x1)
    DNS: Answer Entry Count = 0 (0x0)
    DNS: Name Server Count = 0 (0x0)
    DNS: Additional Records Count = 0 (0x0)
    DNS: Question Section: domain.com. of type SOA on class INET addr.
        DNS: Question Name: domain.com.
        DNS: Question Type = Start of zone of authority
        DNS: Question Class = Internet address class
				

Khung 2: My ch? DNS chnh ph?n ?ng v?i n?i dung c?a SOA ghi l?i trong ph?n tr? l?i.

H? ph?c v? JH40PS DNS 0x4000:Std Qry v? cho domain.com. c?a lo?i SOA trn l?p INET addr.

DNS: 0x4000:Std Qry v? cho domain.com. lo?i SOA trn l?p INET addr.
    DNS: Query Identifier = 16384 (0x4000)
    DNS: DNS Flags = Response, OpCode - Std Qry, AA RA Bits Set, RCode - No
         error
        DNS: 1............... = Response
        DNS: .0000........... = Standard Query
        DNS: .....1.......... = Server authority for domain
        DNS: ......0......... = Message complete
        DNS: .......0........ = Iterative query desired
        DNS: ........1....... = Recursive queries supported by server
        DNS: .........000.... = Reserved
        DNS: ............0000 = No error
    DNS: Question Entry Count = 1 (0x1)
    DNS: Answer Entry Count = 1 (0x1)
    DNS: Name Server Count = 0 (0x0)
    DNS: Additional Records Count = 0 (0x0)
    DNS: Question Section: domain.com. of type SOA on class INET addr.
        DNS: Question Name: domain.com.
        DNS: Question Type = Start of zone of authority
        DNS: Question Class = Internet address class
    DNS: Answer section: domain.com. of type SOA on class INET addr.
        DNS: Resource Name: domain.com.
        DNS: Resource Type = Start of zone of authority
        DNS: Resource Class = Internet address class
        DNS: Time To Live = 86400 (0x15180)
        DNS: Resource Data Length = 41 (0x29)
        DNS: Primary Name Server: server.domain.com.
        DNS: Responsible Authorative Mailbox: administrator.domain.com.
        DNS: Version number = 26 (0x1A)
        DNS: Refresh Interval = 300 (0x12C)
        DNS: Retry interval = 120 (0x78)
        DNS: Expiration Limit = 600 (0x258)
        DNS: Minimum TTL = 86400 (0x15180)
				

Khung 3: C so snh s? phin b?n (serial number) v th?y n th? khc v?i s? phin b?n hi?n t?i c?a n, cc my ch? DNS trung h?c by gi? yu c?u m?t chuy?n vng. Lu ? cc lo?i cu h?i cu h?i DNS Ke tiep.

JH40PS my ch? DNS 0x0:Std Qry cho domain.com. lo?i Req. cho zn Xfer trn l?p INET addr.

DNS: 0x0:Std Qry cho domain.com. lo?i Req. cho zn Xfer trn l?p INET ?a ch?.
    DNS: TCP Length = 31 (0x1F)
    DNS: Query Identifier = 0 (0x0)
    DNS: DNS Flags = Query, OpCode - Std Qry, RCode - No error
        DNS: 0............... = Query
        DNS: .0000........... = Standard Query
        DNS: .....0.......... = Server not authority for domain
        DNS: ......0......... = Message complete
        DNS: .......0........ = Iterative query desired
        DNS: ........0....... = No recursive queries
        DNS: .........000.... = Reserved
        DNS: ............0000 = No error
    DNS: Question Entry Count = 1 (0x1)
    DNS: Answer Entry Count = 0 (0x0)
    DNS: Name Server Count = 0 (0x0)
    DNS: Additional Records Count = 0 (0x0)
    DNS: Question Section: domain.com. of type Req. for zn Xfer on class
         INET addr.
        DNS: Question Name: domain.com.
        DNS: Question Type = Request for zone transfer
        DNS: Question Class = Internet address class
    DNS: Frame Padding
				

Khung 4: My ch? DNS chnh tun theo yu c?u cho m?t vng Chuy?n giao. Ton b? n?i dung c?a t?p tin khu ?c chuy?n giao trong DNS Cu tr? l?i ph?n.

H? ph?c v? JH40PS DNS 0x0:Std Qry v? cho domain.com. c?a lo?i SOA trn l?p INET addr.

DNS: 0x0:Std Qry v? cho domain.com. lo?i SOA trn l?p INET addr.
    DNS: TCP Length = 445 (0x1BD)
    DNS: Query Identifier = 0 (0x0)
    DNS: DNS Flags = Response, OpCode - Std Qry, RA Bits Set, RCode - No
         error
        DNS: 1............... = Response
        DNS: .0000........... = Standard Query
        DNS: .....0.......... = Server not authority for domain
        DNS: ......0......... = Message complete
        DNS: .......0........ = Iterative query desired
        DNS: ........1....... = Recursive queries supported by server
        DNS: .........000.... = Reserved
        DNS: ............0000 = No error
    DNS: Question Entry Count = 1 (0x1)
    DNS: Answer Entry Count = 16 (0x10)
    DNS: Name Server Count = 0 (0x0)
    DNS: Additional Records Count = 0 (0x0)
    DNS: Question Section: domain.com. of type Req. for zn Xfer on class
         INET addr.
        DNS: Question Name: domain.com.
        DNS: Question Type = Request for zone transfer
        DNS: Question Class = Internet address class
    DNS: Answer section: . of type SOA on class INET addr.(16 records
         present)
        DNS: Resource Record: domain.com. of type SOA on class INET addr.
            DNS: Resource Name: domain.com.
            DNS: Resource Type = Start of zone of authority
            DNS: Resource Class = Internet address class
            DNS: Time To Live = 86400 (0x15180)
            DNS: Resource Data Length = 41 (0x29)
            DNS: Primary Name Server: server.domain.com.
            DNS: Responsible Authorative Mailbox: administrator.domain.com.
            DNS: Version number = 26 (0x1A)
            DNS: Refresh Interval = 300 (0x12C)
            DNS: Retry interval = 120 (0x78)
            DNS: Expiration Limit = 600 (0x258)
            DNS: Minimum TTL = 86400 (0x15180)
        DNS: Resource Record: domain.com. of type Host Addr on class INET
             addr.
            DNS: Resource Name: domain.com.
            DNS: Resource Type = Host Address
            DNS: Resource Class = Internet address class
            DNS: Time To Live = 86400 (0x15180)
            DNS: Resource Data Length = 4 (0x4)
            DNS: IP address = 130.0.10.150
        DNS: Resource Record: domain.com. of type Auth. NS on class INET
             addr.
            DNS: Resource Name: domain.com.
            DNS: Resource Type = Authoritative Name Server
            DNS: Resource Class = Internet address class
            DNS: Time To Live = 86400 (0x15180)
            DNS: Resource Data Length = 10 (0xA)
            DNS: Authoritative Name Server: server.domain.com.
        DNS: Resource Record: Dell.domain.com. of type Host Addr on class
             INET addr.
            DNS: Resource Name: Dell.domain.com.
            DNS: Resource Type = Host Address
            DNS: Resource Class = Internet address class
            DNS: Time To Live = 86400 (0x15180)
            DNS: Resource Data Length = 4 (0x4)
            DNS: IP address = 130.0.10.30
        DNS: Resource Record: JH40PS.domain.com. of type Host Addr on
                 class INET addr.
            DNS: Resource Name: JH40PS.domain.com.
            DNS: Resource Type = Host Address
            DNS: Resource Class = Internet address class
            DNS: Time To Live = 86400 (0x15180)
            DNS: Resource Data Length = 4 (0x4)
            DNS: IP address = 130.0.10.155
				

N?u thay ?i ?c th?c hi?n cho cc khu v?c t?p tin v khng c kho?n m?c trong thng bo Danh sch, chu?i sau y s? x?y ra tr?c khi danh sch chuy?n vng th?ng xuyn tr?nh t? nh v?ch ra ? trn.

Khung A: trong khung ny, m?t s? thay ?i ? ?c th?c hi?n ? cc khu v?c t?p tin. B?i v? JH40PS l trong danh sch thng bo cho, my ch? DNS chnh g?i khung ny ? thng bo cho cc my ch? DNS th? c?p m?t s? thay ?i ? x?y ra v r?ng cc Trung h?c DNS server nn truy v?n cc b?n ghi ti nguyn SOA.

H? ph?c v? JH40PS DNS 0x0:Std Qry cho domain.com. lo?i SOA trn l?p INET addr.

DNS: 0x0:Std Qry cho domain.com. lo?i SOA trn l?p INET addr.
    DNS: Query Identifier = 0 (0x0)
    DNS: DNS Flags = Query, OpCode - Rsrvd, AA Bits Set, RCode - No error
        DNS: 0............... = Query
        DNS: .0100........... = Reserved
        DNS: .....1.......... = Server authority for domain
        DNS: ......0......... = Message complete
        DNS: .......0........ = Iterative query desired
        DNS: ........0....... = No recursive queries
        DNS: .........000.... = Reserved
        DNS: ............0000 = No error
    DNS: Question Entry Count = 1 (0x1)
    DNS: Answer Entry Count = 0 (0x0)
    DNS: Name Server Count = 0 (0x0)
    DNS: Additional Records Count = 0 (0x0)
    DNS: Question Section: domain.com. of type SOA on class INET addr.
        DNS: Question Name: domain.com.
        DNS: Question Type = Start of zone of authority
        DNS: Question Class = Internet address class
				

Khung B: h? ph?c v? DNS trung h?c th?a nh?n khi nh?n ?c 1 khung.

JH40PS my ch? DNS 0x0:Std Qry v?

DNS: 0x0:Std Qry v?
    DNS: Query Identifier = 0 (0x0)
    DNS: DNS Flags = Response, OpCode - Rsrvd, AA Bits Set, RCode - No
         error
        DNS: 1............... = Response
        DNS: .0100........... = Reserved
        DNS: .....1.......... = Server authority for domain
        DNS: ......0......... = Message complete
        DNS: .......0........ = Iterative query desired
        DNS: ........0....... = No recursive queries
        DNS: .........000.... = Reserved
        DNS: ............0000 = No error
    DNS: Question Entry Count = 1 (0x1)
    DNS: Answer Entry Count = 0 (0x0)
    DNS: Name Server Count = 0 (0x0)
    DNS: Additional Records Count = 0 (0x0)
    DNS: Question Section: domain.com. of type SOA on class INET addr.
        DNS: Question Name: domain.com.
        DNS: Question Type = Start of zone of authority
        DNS: Question Class = Internet address class
				

Ngay l?p t?c sau ph?n ?ng ny, qu tr?nh chuy?n giao Zone b?t ?u nh trong Khung 1 theo th? t? b?t ?u tin ? trn.

Thu?c tnh

ID c?a bi: 164017 - L?n xem xt sau cng: 19 Thang Tam 2011 - Xem xt l?i: 2.0
p d?ng
  • Microsoft Windows NT Server 4.0 Standard Edition
T? kha:
kbinfo kbnetwork kbmt KB164017 KbMtvi
My d?ch
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