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OCI技術資料 : ロード・バランサー 詳細 / Load Balancer 200

OCI技術資料 : ロード・バランサー 詳細 / Load Balancer 200

Oracle Cloud Infrastructure (OCI) の技術説明資料、ロード・バランサーの詳細編 (Level 200) です。

セッション永続性、仮想ホストによるルーティング、URIパス・ベース・ルーティング、SSLの利用とSSLターミネーションの設定、ロードバランサー で取得できるメトリックなどについて解説しています。

More Decks by Oracle Cloud Infrastructure ソリューション・エンジニア

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Transcript

  1. ロード・バランサ 詳細
    Load Balancer Level 200
    Oracle Cloud Infrastructure
    2023 1

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  2. https://oracle-japan.github.io/ocidocs/services/networking/load-balancer-100/
    • OCI 1 VCN
    • OCI (FLB)
    (NLB) 2
    • – TCP, HTTP/1.0, HTTP/1.1, HTTP/2, WebSocket
    • SSL SSL SSL
    • FLB 7

    • ( IP )

    • TCP ( 4) HTTP ( 7)
    Copyright © 2022, Oracle and/or its affiliates
    2

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  3. • IP
    • SSL SSL


    • WAF(Web Application Firewall) Web



    Copyright © 2022, Oracle and/or its affiliates
    3

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  4. Copyright © 2022, Oracle and/or its affiliates
    4
    タイムアウトとキープ・アライブ設定

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  5. FLB
    Copyright © 2022, Oracle and/or its affiliates
    5
    clients Load Balancer
    Backend
    Servers
    HTTP message/
    TCP segment
    HTTP 200
    3way handshake
    3way handshake
    Fin/ACK
    GET
    HTTP message/
    TCP segment
    HTTP message/
    TCP segment
    GET
    HTTP 200
    HTTP message/
    TCP segment
    Fin/ACK
    = 65 10,000 ( )
    (C)
    (C')
    ( )
    = TCP : 300 , 7200
    = HTTP : 60 , 7200
    (A)
    (A')
    (B) (B')
    = 300 ( )
    (D)
    (D')
    ( )
    = 310
    (E)
    (E')
    (A)
    (A')
    (D')
    (D)
    (C)
    (C') (E')
    (E)
    (A-A') receive timer
    (B-B') send timer
    (B)
    (B')
    https://docs.oracle.com/ja-jp/iaas/Content/Balance/Reference/connectionreuse.htm

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  6. 65 FLB FIN TCP
    1 0.000000000 10.0.1.25 -> 10.0.2.228 TCP 74 43744 > http [SYN] Seq=0 Win=65340 Len=0
    MSS=1485 SACK_PERM=1 TSval=3551202664 TSecr=0 WS=128
    2 0.002493772 10.0.2.228 -> 10.0.1.25 TCP 74 http > 43744 [SYN, ACK] Seq=0 Ack=1 Win=26844
    Len=0 MSS=8960 SACK_PERM=1 TSval=4158075881 TSecr=3551202664 WS=1024
    3 0.000013286 10.0.1.25 -> 10.0.2.228 TCP 66 43744 > http [ACK] Seq=1 Ack=1 Win=65408 Len=0
    TSval=3551202667 TSecr=4158075881
    ( )
    13 0.000005690 10.0.1.25 -> 10.0.2.228 TCP 66 43744 > http [ACK] Seq=241 Ack=1663 Win=64128
    Len=0 TSval=3551202681 TSecr=4158075896
    14 65.001322203 10.0.2.228 -> 10.0.1.25 TCP 66 http > 43744 [FIN, ACK] Seq=1663 Ack=241
    Win=27648 Len=0 TSval=4158140891 TSecr=3551202681
    15 0.040574411 10.0.1.25 -> 10.0.2.228 TCP 66 43744 > http [ACK] Seq=241 Ack=1664 Win=64128
    Len=0 TSval=3551267723 TSecr=4158140891
    16 40.054097462 10.0.1.25 -> 10.0.2.228 TCP 66 43744 > http [FIN, ACK] Seq=241 Ack=1664
    Win=64128 Len=0 TSval=3551307777 TSecr=4158140891
    17 0.001380630 10.0.2.228 -> 10.0.1.25 TCP 66 http > 43744 [ACK] Seq=1664 Ack=242 Win=27648
    Len=0 TSval=4158180983 TSecr=3551307777
    – FLB
    Copyright © 2022, Oracle and/or its affiliates
    6
    3-way handshake
    65
    FIN LB->

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  7. Copyright © 2022, Oracle and/or its affiliates
    7
    バックエンド・サーバーでの
    クライアントのIPアドレスの識別

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  8. IP
    IP
    IP …
    • HTTP HTTP X-Forwarded-
    • TCP
    IP
    IP
    Copyright © 2022, Oracle and/or its affiliates
    8
    : 1.1.1.1
    : 192.168.1.2
    Src 1.1.1.1
    Dst 2.2.2.2
    VIP : 2.2.2.2
    192.168.1.254
    Src 192.168.1.254
    Dst 192.168.1.2
    Src 192.168.1.2
    Dst 192.168.1.254
    Src 2.2.2.2
    Dst 1.1.1.1
    X-Forwarded-For
    IP
    IP
    X-Forwarded-Host
    X-Forwarded-Port
    X-Forwarded-Proto
    X-Real-IP X-Forwarded-For IP

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  9. Copyright © 2022, Oracle and/or its affiliates
    9
    SSL通信への対応
    SSL Handling

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  10. 3 SSL
    Copyright © 2022, Oracle and/or its affiliates
    10
    SSL • SSL

    • SSL
    • Web
    • FLB HTTPS
    SSL • SSL SSL

    • SSL
    • FLB HTTPS
    SSL
    • SSL
    SSL
    • SSL
    • FLB TCP NLB
    HTTPS
    ( )
    HTTP
    ( )
    HTTPS
    ( )
    HTTPS
    ( )
    HTTPS( )

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  11. OCI (Certificates)
    Copyright © 2022, Oracle and/or its affiliates
    11
    OCI SSL (FLB)
    → OCI
    OCI (OCI Certificates Service)
    • (Certificate) (CA) CA
    • CA/ /CA



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  12. SSL
    Copyright © 2022, Oracle and/or its affiliates
    12

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  13. RSA
    (CSR)
    SSL - 1. (CSR)
    Copyright © 2022, Oracle and/or its affiliates
    13
    $ openssl req -new -key MyKey.key -out MyCSR.csr
    You are about to be asked to enter information that will be incorporated
    into your certificate request.
    What you are about to enter is what is called a Distinguished Name or a DN.
    There are quite a few fields but you can leave some blank
    For some fields there will be a default value,
    If you enter '.', the field will be left blank.
    -----
    Country Name (2 letter code) [AU]:US
    State or Province Name (full name) [Some-State]:WA
    Locality Name (eg, city) []:Redmond
    Organization Name (eg, company) [Internet Widgits Pty Ltd]:Oracle
    Organizational Unit Name (eg, section) []:OCI
    Common Name (e.g. server FQDN or YOUR name) []:*.example.org
    Email Address []:[email protected]
    Please enter the following 'extra' attributes
    to be sent with your certificate request
    A challenge password []:
    An optional company name []:
    $ openssl genrsa -out MyKey.key 2048
    Generating RSA private key, 2048 bit long modulus
    .........................+++
    .....................+++
    e is 65537 (0x10001)

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  14. SSL - 2.
    Copyright © 2022, Oracle and/or its affiliates
    14
    $ openssl x509 -req -days 365 -in MyCSR.csr -signkey MyKey.key -out ExampleCert.crt
    Signature ok
    subject=/C=US/ST=WA/L=Redmond/O=Oracle/OU=OCI/CN=*.example.org/[email protected]
    Getting Private key
    $ openssl x509 -in exampleCert.crt -noout -text
    Certificate:
    Data:
    Version: 1 (0x0)
    Serial Number:
    fa:98:bb:ae:1e:19:4d:a3
    Signature Algorithm: sha256WithRSAEncryption
    Issuer: C=US, ST=WA, L=Redmond, O=Oracle, OU=OCI, CN=*.example.org/[email protected]
    Validity
    Not Before: Jun 6 18:34:41 2018 GMT
    Not After : Jun 6 18:34:41 2019 GMT
    Subject: C=US, ST=WA, L=Redmond, O=Oracle, OU=OCI, CN=*.example.org/[email protected]
    Subject Public Key Info:
    Public Key Algorithm: rsaEncryption
    Public-Key: (2048 bit)
    Modulus:
    00:c0:63:f1:aa:d8:98:b1:01:0f:9f:fa:71:6a:9a:
    f1:05:9d:d6:84:01:88:8d:51:6e:b5:d4:fa:5e:fb:
    95:f7:ac:ed:07:11:bf:89:85:4b:39:70:71:9e:7e:
    cd:ba:24:96:65:d9:41:69:d1:05:f7:1a:a2:43:29:
    7a:6b:de:11:e7:2b:6f:95:ee:04:de:2b:23:b1:0b:
    a6:a2:76:8f:40:42:50:1e:d8:2a:16:2c:d5:97:2b:

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  15. PEM
    SSL - 3.
    Copyright © 2022, Oracle and/or its affiliates
    15
    $ openssl x509 -in ExampleCert.crt -out ExampleCert.pem -outform PEM

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  16. SSL - 4. 443
    Copyright © 2022, Oracle and/or its affiliates
    16

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  17. SSL
    Copyright © 2022, Oracle and/or its affiliates
    17

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  18. Copyright © 2022, Oracle and/or its affiliates
    18
    セッション永続性機能を利⽤した
    バックエンド・サーバーの固定
    Using Session Persistence

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  19. Web
    :
    Cookie Cookie persistence
    ※Cookie
    Copyright © 2022, Oracle and/or its affiliates
    19
    Cookie
    Client A
    Client B
    cookie
    Client A
    Client B
    FLB HTTP/HTTPS

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  20. Cookie 2
    1. Cookie
    • Cookie
    • Cookie
    OK
    2. Cookie
    • Cookie

    • Cookie
    Cookie(+α)
    Cookie Cookie
    FLB HTTP/HTTPS
    Copyright © 2022, Oracle and/or its affiliates
    20

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  21. Cookie
    Cookie
    Client Load Balancer Backend Server
    1
    2
    200 OK
    3
    200 OK
    Set-cookie:X-Oracle-BMC-LBS-Route=yyy
    4
    5
    Set-cookie:X-Oracle-BMC-LBS-Route=yyy
    1.
    2.
    3.
    X-Oracle-BMC-LBS-Route
    Cookie
    4. Cookie
    5. Cookie
    FLB HTTP/HTTPS
    Copyright © 2022, Oracle and/or its affiliates
    21

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  22. Cookie
    Cookie
    Client Load Balancer Backend Server
    1
    2
    200 OK
    Set-cookie: sessionid=xxx
    3
    200 OK
    Set-cookie:sessionid=xxx
    Set-cookie:X-Oracle-BMC-LBS-Route=yyy
    4
    5
    Set-cookie:sessionid=xxx
    Set-cookie:X-Oracle-BMC-LBS-Route=yyy
    1.
    2. Set-cookie
    Cookie
    3.
    Cookie
    Cookie+
    X-Oracle-BMC-LBS-Route
    Cookie
    4. Cookie
    5. Cookie
    : FLB X-Oracle-VMC-
    LBS-Route Cookie
    2 Cookie
    FLB HTTP/HTTPS
    Copyright © 2022, Oracle and/or its affiliates
    22

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  23. Q. ?
    • (Fallback)
    • :
    • : HTTP 502
    Q. ?
    • cookie(match-all cookie)
    • cookie Cookie
    • Cookie ( ) (
    )
    FAQ
    Copyright © 2022, Oracle and/or its affiliates
    23
    FLB HTTP/HTTPS

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  24. Q. ?
    • Cookie
    • Cookie
    • Cookie
    Q. Cookie ?
    • FLB Cookie
    • Cookie
    Cookie FLB Cookie
    • Cookie : Expires, Max-Age, SameSite, Secure, HTTP-Only
    • : FLB Cookie
    FLB
    FAQ
    Copyright © 2022, Oracle and/or its affiliates
    24
    FLB HTTP/HTTPS

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  25. Cookie
    - (FLB) HTTP/HTTPS
    × - (FLB) TCP
    × - (NLB)
    Cookie HTTP Cookie FLB HTTP(S)
    Cookie IP (FLB) 2 (NLB)
    IP( )
    Cookie
    Copyright © 2022, Oracle and/or its affiliates
    25
    Proxy
    1.1.1.1 2.2.2.2 3.3.3.3
    1.1.1.1 2.2.2.2 3.3.3.3
    5.5.5.5
    NLB 2 FLB TCP
    IP

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  26. Copyright © 2022, Oracle and/or its affiliates
    26
    リクエスト・ルーティングを⽤いた
    ⾼度なルーティング
    Request Routing

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  27. • IP
    • FLB HTTP HTTPS
    • : 7
    • FLB TCP NLB
    • 3
    1. -
    2. URI Cookie
    • 2021 3 ( )
    3. - HTTP(S)
    Copyright © 2022, Oracle and/or its affiliates
    27
    FLB HTTP/HTTPS

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  28. (IP : xxx.xxx.xxx.xxx)
    1
    2
    (IP + + )
    • 1 IP
    • 1
    • 1
    • 1
    – 1.
    1 (TCP/80)
    2 (TCP/80)
    www.example1.com
    www.example2.com
    FLB HTTP/HTTPS
    Copyright © 2022, Oracle and/or its affiliates
    28

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  29. • FQDN (e.g. app.example.com)
    • (*.example.com)
    • (app.example.*)
    (Catch-all)
    • ※

    • 16
    • 16
    – 1.
    Copyright © 2022, Oracle and/or its affiliates
    29
    FLB HTTP/HTTPS

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  30. – 2.
    1 (IP + + )
    • 縮
    • URL URI( )
    • HTTP
    • Cookie
    • 1
    • 1
    • 1
    (IP : xxx.xxx.xxx.xxx)
    (TCP/80)
    1
    2
    1
    user-agent = mobile
    2
    = /admin/
    FLB HTTP/HTTPS
    Copyright © 2022, Oracle and/or its affiliates
    30

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  31. (IP : xxx.xxx.xxx.xxx)
    (Port : 80)
    1
    2
    2022/3/24 [CN-64788]
    1 (IP + + )
    URI
    URI
    • 1
    • 1
    • 1
    – 2'. (~2022/3/24)
    1
    /pages/
    2
    /video/
    FLB HTTP/HTTPS
    Copyright © 2022, Oracle and/or its affiliates
    31

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  32. • (EXACT_MATCH)
    • URI : ^$
    • (FORCE_LONGEST_PREFIX_MATCH)
    • URI : .*
    • (PREFIX_MATCH)
    • URI : ^.*
    • (SUFFIX_MATCH)
    • URI : .*$
    – 2'. (~2022/3/24)
    Copyright © 2022, Oracle and/or its affiliates
    32
    FLB HTTP/HTTPS

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  33. 1. (EXACT_MATCH)
    2.
    (FORCE_LONGEST_PREFIX_MATCH)
    3. (PREFIX_MATCH)
    (SUFFIX_MATCH)
    – 2'. (~2022/3/24)
    Copyright © 2022, Oracle and/or its affiliates
    33
    FLB HTTP/HTTPS

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  34. • 20
    • 1
    – 2'. (~2022/3/24)
    Copyright © 2022, Oracle and/or its affiliates
    34
    FLB HTTP/HTTPS

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  35. URI Cookie
    : 1 A B C 3 A

    • foo.com → B
    • bar.com → C
    • URI
    • /biz → B ( )
    • /baz → C ( )
    Copyright © 2022, Oracle and/or its affiliates
    35
    URL
    http://foo.com B
    http://foo.com/biz B
    http://foo.com/baz C
    http://bar.com C
    http://bar.com/biz B
    http://bar.com/baz C
    http://example.com A
    http://example.com/biz B
    http://example.com/baz C
    FLB HTTP/HTTPS

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  36. LB-APPS-1
    ipAddress = ip-1
    name = foo-and-bar-LB
    BackendSet[[]
    Listeners[]
    PathRouteSet[]
    Listener-default
    port = 554
    serverName = null
    defaultBackendSet = foo.BES-1
    certificate = foo-Certificate
    PathRouteSet = PRS-1
    Listener-foo
    port = 443
    serverName = *.foo.com
    defaultBackendSet = foo.BES-1
    certificate = foo-Certificate
    PathRouteSet = null
    Listener-bar
    port = 443
    serverName = *.bar.com
    defaultBackendSet = bar.BES-1
    certificate = foo-Certificate
    PathRouteSet = PRS-1
    foo-Certificate
    CN = www.foo.com
    SAN = *.foo.com
    bar-Certificate
    CN = www.bar.com
    SAN = *.bar.com
    foo-BES-1
    [] – foo-Backends-1
    bar-BES-1
    [] – bar-Backends-1
    bar-BES-2
    [] – bar-Backends-2
    PRS-1
    [] – bar-path-route-rules
    Exact Matches
    /biz à bar-BES-1
    /baz à bar-BES-2
    URL
    http://example.com foo-BES-1
    http://example.com/biz bar-BES-1
    http://example.com/baz bar-BES-2
    http://foo.com foo-BES-1
    http://bar.com bar-BES-1
    http://bar.com/baz bar-BES-2
    FLB HTTP/HTTPS
    Copyright © 2022, Oracle and/or its affiliates
    36

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  37. HTTP(S)
    • IP
    • GET HEAD POST HTTP
    URL
    • URI HTTP
    URI
    • HTTP(80)
    HTTPS(443) SSL

    HTTP ( )

    • HTTP
    ( )
    • [x-xss-protection] [x-
    content-type]
    HTTP
    • HTTP 8KB
    64KB
    • . _
    – 3.
    FLB HTTP/HTTPS
    Copyright © 2022, Oracle and/or its affiliates
    37

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  38. HTTP
    50

    • [Server]
    • Web
    • [x-xss-protection] [x-content-type]
    FLB HTTP/HTTPS
    Copyright © 2022, Oracle and/or its affiliates
    38

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  39. • IP
    • GET HEAD POST HTTP
    FLB HTTP/HTTPS
    Copyright © 2022, Oracle and/or its affiliates
    39

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  40. URL
    HTTP URL
    • HTTP HTTPS
    FLB HTTP/HTTPS
    Copyright © 2022, Oracle and/or its affiliates
    40

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  41. ?
    • Cookie
    • Cookie
    • Cookie
    FAQ
    Copyright © 2022, Oracle and/or its affiliates
    41
    FLB HTTP/HTTPS

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  42. Copyright © 2022, Oracle and/or its affiliates
    42
    WAF(Web Application Firewall)、
    Webアプリケーション・アクセラレーションとの連携

    View Slide

  43. FLB WAF VCN
    • OCI Web Application Firewall WAF L7 DDOS
    SQL Web
    • VCN / WAF
    • VCN
    WAF
    • Blog Announcing Oracle Cloud Infrastructure WAF Protection on Flexible Load Balancers
    • WAF
    Web Application Firewall
    Copyright © 2022, Oracle and/or its affiliates
    43
    2021/10/27
    OCI
    VCN
    DRG
    WAF WAF
    Product Price Metric
    Instance $5 Instance Per Month
    Requests $0.6
    1,000,000 Incoming
    Requests Per Month

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  44. HTTP
    • 100MB
    • Accept-Encoding

    [Network] Web Application Acceleration
    Copyright © 2022, Oracle and/or its affiliates
    44
    2022/6/15
    “cacheStatus”
    HIT
    MISS
    https://blogs.oracle.com/oracle4engineer/post/ja-intro-waa

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  45. Copyright © 2022, Oracle and/or its affiliates
    45
    ロード・バランサのロギング
    Logging for Load Balancers

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  46. (NLB) OCI
    • 2


    ※ (NLB) /
    • /
    • OCI
    ( : 10GB/ )
    / OCI
    Copyright © 2022, Oracle and/or its affiliates
    46
    Logging
    VCN
    Flow Logs
    OCI

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  47. https://docs.oracle.com/ja-jp/iaas/Content/Network/Concepts/vcn_flow_logs.htm
    VCN
    OCI
    • VCN (or VCN )

    • NIC IP
    • OCI
    IP
    VTAP
    VCN ( )
    ACCEPT TCP 172.21.2.185 Port 43360 → 129.146.13.236 Port 443 Bytes 10515 Packets 19
    ACCEPT TCP 129.146.13.236 Port 443 → 172.21.2.185 Port 43360 Bytes 5548 Packets 14
    VCN
    Copyright © 2022, Oracle and/or its affiliates
    47
    VCN
    Flow Logs

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  48. https://docs.oracle.com/ja-jp/iaas/Content/Network/Tasks/vtap.htm
    (FLB) VTAP
    (Virtual Test Access Point)
    (NLB)

    ( )
    • IDS

    FLB VTAP
    VTAP (Virtual Test Access Point)
    Copyright © 2022, Oracle and/or its affiliates
    48
    ( )

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  49. Copyright © 2022, Oracle and/or its affiliates
    49
    ロード・バランサのメトリック
    Metrics for Load Balancers

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  50. OCI (FLB, NLB)
    OCI


    • OCI
    • OCI Events

    → OCI OCI
    2
    Copyright © 2022, Oracle and/or its affiliates
    50

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  51. https://docs.oracle.com/ja-jp/iaas/Content/Balance/Reference/loadbalancermetrics.htm
    OCI ( : oci_lbaas) 3 (lbComonent)
    • lbComponent = loadbalancer
    • SSL (11 )
    • lbComponent = listener
    • HTTP (HTTP ) (8 )
    • lbComponent = backendset

    HTTP (HTTP ) (19 )
    : Load Balancer
    Copyright © 2022, Oracle and/or its affiliates
    51

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  52. 2
    lbHostId
    (PeakBandwidth)
    lbHostId=ae41d2132 lbHostId=f6d9d18 2
    lbHostId
    ( grouping().sum())
    MQL
    PeakBandwidth[1m]{resourceId="ocid1…"}.grouping().s
    um()
    Tips : lbHostId
    Copyright © 2022, Oracle and/or its affiliates
    52

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  53. PeakBandwidth[1m]{lbName=""}.grouping().sum()
    LBHOST
    (UnHealthyBackendServers[1m].mean() > 0).groupBy(backendSetName).mean() > 0.5
    5 HTTP 200 95%
    HttpResponses200[5m]{lbname=""}.groupBy(listenerName).sum() /
    HttpResponses[5m]{lbname=""}.groupBy(listenerName).sum() < 0.95
    Copyright © 2022, Oracle and/or its affiliates
    53

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  54. Copyright © 2022, Oracle and/or its affiliates
    54
    トラブル時の対応ガイドライン
    Troubleshooting Guidelines

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  55. • 3
    • [ ] [ ]






    • VCN

    Copyright © 2022, Oracle and/or its affiliates
    55

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  56. • IP
    • SSL SSL


    • WAF(Web Application Firewall) Web



    Copyright © 2022, Oracle and/or its affiliates
    56

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  57. • https://docs.oracle.com/ja-jp/iaas/Content/Balance/Concepts/balanceoverview.htm

    • https://docs.oracle.com/ja-jp/iaas/Content/NetworkLoadBalancer/overview.htm
    – Web
    • https://oracle-japan.github.io/ocitutorials/intermediates/using-load-balancer/
    Copyright © 2022, Oracle and/or its affiliates
    57

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  58. Oracle Cloud Infrastructure
    • https://docs.oracle.com/ja-jp/iaas/Content/home.htm - ( )
    • https://docs.cloud.oracle.com/iaas/api/ - API
    • https://docs.oracle.com/ja-jp/iaas/Content/General/Reference/aqswhitepapers.htm -
    • https://docs.cloud.oracle.com/iaas/releasenotes/ -
    • https://docs.oracle.com/ja-jp/iaas/Content/knownissues.htm - (Known Issues)
    • https://docs.oracle.com/ja-jp/iaas/Content/General/Reference/graphicsfordiagrams.htm - OCI
    (PPT SVG Visio )
    Oracle Cloud Infrastructure
    Copyright © 2022, Oracle and/or its affiliates
    58

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  59. Oracle Cloud Infrastructure
    • https://oracle-japan.github.io/ocidocs/
    - Oracle Cloud Infrastructure
    • https://oracle-japan.github.io/ocitutorials/
    Oracle
    • https://www.oracle.com/search/events/
    ( Filter Locations -> Asia Pacific -> Japan )
    Oracle Cloud Infrastructure – General Forum ( )
    • https://cloudcustomerconnect.oracle.com/resources/9c8fa8f96f/summary
    Oracle Cloud Infrastructure
    Copyright © 2022, Oracle and/or its affiliates
    59

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  60. Thank You
    Copyright © 2022, Oracle and/or its affiliates
    60

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  61. View Slide