Zscaler DNS 로그 수집
이 문서에서는 Google Security Operations 피드를 설정하여 Zscaler DNS 로그를 내보내는 방법과 로그 필드가 Google SecOps 통합 데이터 모델 (UDM) 필드에 매핑되는 방식을 설명합니다.
자세한 내용은 Google SecOps에 데이터 수집 개요를 참고하세요.
일반적인 배포는 Google SecOps에 로그를 전송하도록 구성된 Zscaler DNS 및 Google SecOps Webhook 피드로 구성됩니다. 고객 배포마다 다를 수 있으며 더 복잡할 수도 있습니다.
배포에는 다음 구성요소가 포함됩니다.
Zscaler DNS: 로그를 수집하는 플랫폼입니다.
Google SecOps 피드: Zscaler DNS에서 로그를 가져오고 로그를 Google SecOps에 작성하는 Google SecOps 피드입니다.
Google SecOps: 로그를 보관하고 분석합니다.
수집 라벨은 원시 로그 데이터를 구조화된 UDM 형식으로 정규화하는 파서를 식별합니다. 이 문서의 정보는 ZSCALER_DNS
수집 라벨이 있는 파서에 적용됩니다.
시작하기 전에
다음 기본 요건이 충족되었는지 확인합니다.
- Zscaler Internet Access 콘솔에 대한 액세스 권한이 있어야 합니다. 자세한 내용은 보안 인터넷 및 SaaS 액세스 ZIA 도움말을 참고하세요.
- Zscaler DNS 2024 이상
- 배포 아키텍처의 모든 시스템은 UTC 시간대로 구성됩니다.
- Google Security Operations에서 피드 설정을 완료하는 데 필요한 API 키입니다. 자세한 내용은 API 키 설정을 참고하세요.
피드 설정
이 로그 유형을 구성하려면 다음 단계를 따르세요.
- SIEM 설정> 피드로 이동합니다.
- 새 피드 추가를 클릭합니다.
- Zscaler 피드 팩을 클릭합니다.
- 필요한 로그 유형을 찾아 새 피드 추가를 클릭합니다.
다음 입력 매개변수의 값을 입력합니다.
- 소스 유형: 웹훅 (권장)
- 분할 구분 기호: 로그 줄을 구분하는 데 사용되는 문자입니다. 구분 기호를 사용하지 않는 경우 비워 둡니다.
고급 옵션
- 피드 이름: 피드를 식별하는 미리 채워진 값입니다.
- 애셋 네임스페이스: 피드와 연결된 네임스페이스입니다.
- 수집 라벨: 이 피드의 모든 이벤트에 적용되는 라벨입니다.
피드 만들기를 클릭합니다.
이 제품군 내에서 다양한 로그 유형에 대해 여러 피드를 구성하는 방법에 관한 자세한 내용은 제품별 피드 구성을 참고하세요.
Zscaler DNS 설정
- Zscaler Internet Access 콘솔에서 Administration > Nanolog Streaming Service > Cloud NSS Feeds를 클릭한 다음 Add Cloud NSS Feed를 클릭합니다.
- Add Cloud NSS Feed 창이 표시됩니다. 클라우드 NSS 피드 추가 창에 세부정보를 입력합니다.
- 피드 이름 필드에 피드 이름을 입력합니다.
- NSS Type에서 NSS for DNS를 선택합니다.
- 상태 목록에서 상태를 선택하여 NSS 피드를 활성화하거나 비활성화합니다.
- SIEM 비율 드롭다운의 값을 무제한으로 유지합니다. 라이선스 또는 기타 제약 조건으로 인해 출력 스트림을 억제하려면 값을 변경합니다.
- SIEM 유형 목록에서 기타를 선택합니다.
- OAuth 2.0 인증 목록에서 사용 중지됨을 선택합니다.
- 최대 배치 크기에 SIEM의 권장사항에 따른 개별 HTTP 요청 페이로드의 크기 제한을 입력합니다. 예: 512KB
다음 형식으로 Chronicle API 엔드포인트의 HTTPS URL을 API URL에 입력합니다.
https://<CHRONICLE_REGION>-chronicle.googleapis.com/v1alpha/projects/<GOOGLE_PROJECT_NUMBER>/locations/<LOCATION>/instances/<CUSTOMER_ID>/feeds/<FEED_ID>:importPushLogs
CHRONICLE_REGION
: Chronicle 인스턴스가 호스팅되는 리전입니다. 예: 미국GOOGLE_PROJECT_NUMBER
: BYOP 프로젝트 번호입니다. C4에서 이를 가져옵니다.LOCATION
: Chronicle 리전입니다. 예: 미국CUSTOMER_ID
: Chronicle 고객 ID입니다. C4에서 가져옵니다.FEED_ID
: 새로 생성된 웹훅의 피드 UI에 표시되는 피드 ID- 샘플 API URL:
https://us-chronicle.googleapis.com/v1alpha/projects/12345678910/locations/US/instances/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/feeds/yyyyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy:importPushLogs
HTTP 헤더 추가를 클릭한 다음 다음 형식으로 HTTP 헤더를 추가합니다.
Header 1
: Key1:X-goog-api-key
및 Value1: Google Cloud BYOP의 API 사용자 인증 정보에서 생성된 API 키Header 2
: Key2:X-Webhook-Access-Key
및 Value2: 웹훅의 'SECRET KEY'에서 생성된 API 보안 키입니다.
로그 유형 목록에서 DNS 로그를 선택합니다.
피드 출력 유형 목록에서 JSON을 선택합니다.
피드 이스케이프 문자를
, \ "
로 설정합니다.피드 출력 형식에 새 필드를 추가하려면 피드 출력 유형 목록에서 맞춤을 선택합니다.
피드 출력 형식을 복사하여 붙여넣고 새 필드를 추가합니다. 키 이름이 실제 필드 이름과 일치하는지 확인합니다.
다음은 기본 피드 출력 형식입니다.
\{ "sourcetype" : "zscalernss-dns", "event" :\{"datetime":"%s{time}","user":"%s{elogin}","department":"%s{edepartment}","location":"%s{elocation}","reqaction":"%s{reqaction}","resaction":"%s{resaction}","reqrulelabel":"%s{reqrulelabel}","resrulelabel":"%s{resrulelabel}","dns_reqtype":"%s{reqtype}","dns_req":"%s{req}","dns_resp":"%s{res}","srv_dport":"%d{sport}","durationms":"%d{durationms}","clt_sip":"%s{cip}","srv_dip":"%s{sip}","category":"%s{domcat}","respipcategory":"%s{respipcat}","deviceowner":"%s{deviceowner}","devicehostname":"%s{devicehostname}"\}\}
시간대 목록에서 출력 파일의 시간 필드에 사용할 시간대를 선택합니다. 기본적으로 시간대는 조직의 시간대로 설정됩니다.
구성된 설정을 검토합니다.
저장을 클릭하여 연결을 테스트합니다. 연결에 성공하면 연결 테스트 성공: OK (200)이라는 메시지와 함께 녹색 체크표시가 표시됩니다.
Google SecOps 피드에 대한 자세한 내용은 Google SecOps 피드 문서를 참고하세요. 각 피드 유형의 요구사항은 유형별 피드 구성을 참조하세요.
피드를 만들 때 문제가 발생하면 Google SecOps 지원팀에 문의하세요.
지원되는 Zscaler DNS 로그 형식
Zscaler DNS 파서는 JSON 형식의 로그를 지원합니다.
지원되는 Zscaler DNS 샘플 로그
JSON
{ "sourcetype": "zscalernss-dns", "event": { "srv_dport": "53", "durationms": "1306", "clt_sip": "1.1.1.1", "respipcategory": "Other", "datetime": "Sun Sep 18 22:41:05 2020", "reqaction": "Allow", "resaction": "Allow", "resrulelabel": "None", "category": "Finance", "devicehostname": "dummy_hostname", "user": "test.123@test.com", "location": "dummy", "deviceowner": "212582", "department": "Output%20Solutions", "reqrulelabel": "Default Firewall DNS Rule", "dns_reqtype": "SRV", "dns_req": "dummy.domains.com", "dns_resp": "NXDOMAIN", "srv_dip": "1.1.1.1" } }
필드 매핑 참조
필드 매핑 참조: ZSCALER_DNS
다음 표에는 ZSCALER_DNS
로그 유형의 로그 필드와 해당 UDM 필드가 나와 있습니다.
Log field | UDM mapping | Logic |
---|---|---|
|
metadata.event_type |
The metadata.event_type UDM field is set to NETWORK_DNS . |
|
metadata.product_name |
The metadata.product_name UDM field is set to DNS . |
|
metadata.vendor_name |
The metadata.vendor_name UDM field is set to Zscaler . |
|
metadata.description |
If the category log field value is not empty and the durationms log field value is not empty, then the NSSDNSLog | Duration: durationms ms | Category: category log field is mapped to the metadata.description UDM field.Else, if the category log field value is not empty, then the DNS request to \category\ log field is mapped to the metadata.description UDM field. |
recordid |
metadata.product_log_id |
|
datetime |
metadata.event_timestamp |
|
epochtime |
metadata.event_timestamp |
|
|
network.application_protocol |
The network.application_protocol UDM field is set to DNS . |
|
network.dns.response_code |
If the dns_resp log field value is equal to NOERROR , then the network.dns.response_code UDM field is set to 0 .Else, if the dns_resp log field value is equal to FORMERR , then the network.dns.response_code UDM field is set to 1 .Else, if the dns_resp log field value is equal to SERVFAIL , then the network.dns.response_code UDM field is set to 2 .Else, if the dns_resp log field value is equal to NXDOMAIN , then the network.dns.response_code UDM field is set to 3 .Else, if the dns_resp log field value is equal to NOTIMP , then the network.dns.response_code UDM field is set to 4 .Else, if the dns_resp log field value is equal to REFUSED , then the network.dns.response_code UDM field is set to 5 .Else, if the dns_resp log field value is equal to YXDOMAIN , then the network.dns.response_code UDM field is set to 6 .Else, if the dns_resp log field value is equal to YXRRSET , then the network.dns.response_code UDM field is set to 7 .Else, if the dns_resp log field value is equal to NXRRSET , then the network.dns.response_code UDM field is set to 8 .Else, if the dns_resp log field value is equal to NOTAUTH , then the network.dns.response_code UDM field is set to 9 .Else, if the dns_resp log field value is equal to NOTZONE , then the network.dns.response_code UDM field is set to 10 . |
dns_resp |
network.dns.answers.data |
|
|
network.dns.answers.type |
If the restype log field value matches the regular expression pattern ipv4 , then the network.dns.answers.type UDM field is set to 1 .Else, if the restype log field value matches the regular expression pattern ipv6 , then the network.dns.answers.type UDM field is set to 28 . |
dns_req |
network.dns.questions.name |
|
|
network.dns.questions.type |
If the record_type log field value is equal to A , then the network.dns.questions.type UDM field is set to 1 .Else, if the record_type log field value is equal to NS , then the network.dns.questions.type UDM field is set to 2 .Else, if the record_type log field value is equal to MD , then the network.dns.questions.type UDM field is set to 3 .Else, if the record_type log field value is equal to MF , then the network.dns.questions.type UDM field is set to 4 .Else, if the record_type log field value is equal to CNAME , then the network.dns.questions.type UDM field is set to 5 .Else, if the record_type log field value is equal to SOA , then the network.dns.questions.type UDM field is set to 6 .Else, if the record_type log field value is equal to MB , then the network.dns.questions.type UDM field is set to 7 .Else, if the record_type log field value is equal to MG , then the network.dns.questions.type UDM field is set to 8 .Else, if the record_type log field value is equal to MR , then the network.dns.questions.type UDM field is set to 9 .Else, if the record_type log field value is equal to NULL , then the network.dns.questions.type UDM field is set to 10 .Else, if the record_type log field value is equal to WKS , then the network.dns.questions.type UDM field is set to 11 .Else, if the record_type log field value is equal to PTR , then the network.dns.questions.type UDM field is set to 12 .Else, if the record_type log field value is equal to HINFO , then the network.dns.questions.type UDM field is set to 13 .Else, if the record_type log field value is equal to MINFO , then the network.dns.questions.type UDM field is set to 14 .Else, if the record_type log field value is equal to MX , then the network.dns.questions.type UDM field is set to 15 .Else, if the record_type log field value is equal to TXT , then the network.dns.questions.type UDM field is set to 16 .Else, if the record_type log field value is equal to RP , then the network.dns.questions.type UDM field is set to 17 .Else, if the record_type log field value is equal to AFSDB , then the network.dns.questions.type UDM field is set to 18 .Else, if the record_type log field value is equal to X25 , then the network.dns.questions.type UDM field is set to 19 .Else, if the record_type log field value is equal to ISDN , then the network.dns.questions.type UDM field is set to 20 .Else, if the record_type log field value is equal to RT , then the network.dns.questions.type UDM field is set to 21 .Else, if the record_type log field value is equal to NSAP , then the network.dns.questions.type UDM field is set to 22 .Else, if the record_type log field value is equal to NSAP-PTR , then the network.dns.questions.type UDM field is set to 23 .Else, if the record_type log field value is equal to SIG , then the network.dns.questions.type UDM field is set to 24 .Else, if the record_type log field value is equal to KEY , then the network.dns.questions.type UDM field is set to 25 .Else, if the record_type log field value is equal to PX , then the network.dns.questions.type UDM field is set to 26 .Else, if the record_type log field value is equal to GPOS , then the network.dns.questions.type UDM field is set to 27 .Else, if the record_type log field value is equal to AAAA , then the network.dns.questions.type UDM field is set to 28 .Else, if the record_type log field value is equal to LOC , then the network.dns.questions.type UDM field is set to 29 .Else, if the record_type log field value is equal to NXT , then the network.dns.questions.type UDM field is set to 30 .Else, if the record_type log field value is equal to EID , then the network.dns.questions.type UDM field is set to 31 .Else, if the record_type log field value is equal to NIMLOC , then the network.dns.questions.type UDM field is set to 32 .Else, if the record_type log field value is equal to SRV , then the network.dns.questions.type UDM field is set to 33 .Else, if the record_type log field value is equal to ATMA , then the network.dns.questions.type UDM field is set to 34 .Else, if the record_type log field value is equal to NAPTR , then the network.dns.questions.type UDM field is set to 35 .Else, if the record_type log field value is equal to KX , then the network.dns.questions.type UDM field is set to 36 .Else, if the record_type log field value is equal to CERT , then the network.dns.questions.type UDM field is set to 37 .Else, if the record_type log field value is equal to A6 , then the network.dns.questions.type UDM field is set to 38 .Else, if the record_type log field value is equal to DNAME , then the network.dns.questions.type UDM field is set to 39 .Else, if the record_type log field value is equal to SINK , then the network.dns.questions.type UDM field is set to 40 .Else, if the record_type log field value is equal to OPT , then the network.dns.questions.type UDM field is set to 41 .Else, if the record_type log field value is equal to APL , then the network.dns.questions.type UDM field is set to 42 .Else, if the record_type log field value is equal to DS , then the network.dns.questions.type UDM field is set to 43 .Else, if the record_type log field value is equal to SSHFP , then the network.dns.questions.type UDM field is set to 44 .Else, if the record_type log field value is equal to IPSECKEY , then the network.dns.questions.type UDM field is set to 45 .Else, if the record_type log field value is equal to RRSIG , then the network.dns.questions.type UDM field is set to 46 .Else, if the record_type log field value is equal to NSEC , then the network.dns.questions.type UDM field is set to 47 .Else, if the record_type log field value is equal to DNSKEY , then the network.dns.questions.type UDM field is set to 48 .Else, if the record_type log field value is equal to DHCID , then the network.dns.questions.type UDM field is set to 49 .Else, if the record_type log field value is equal to NSEC3 , then the network.dns.questions.type UDM field is set to 50 .Else, if the record_type log field value is equal to NSEC3PARAM , then the network.dns.questions.type UDM field is set to 51 .Else, if the record_type log field value is equal to TLSA , then the network.dns.questions.type UDM field is set to 52 .Else, if the record_type log field value is equal to SMIMEA , then the network.dns.questions.type UDM field is set to 53 .Else, if the record_type log field value is equal to UNASSIGNED , then the network.dns.questions.type UDM field is set to 54 .Else, if the record_type log field value is equal to HIP , then the network.dns.questions.type UDM field is set to 55 .Else, if the record_type log field value is equal to NINFO , then the network.dns.questions.type UDM field is set to 56 .Else, if the record_type log field value is equal to RKEY , then the network.dns.questions.type UDM field is set to 57 .Else, if the record_type log field value is equal to TALINK , then the network.dns.questions.type UDM field is set to 58 .Else, if the record_type log field value is equal to CDS , then the network.dns.questions.type UDM field is set to 59 .Else, if the record_type log field value is equal to CDNSKEY , then the network.dns.questions.type UDM field is set to 60 .Else, if the record_type log field value is equal to OPENPGPKEY , then the network.dns.questions.type UDM field is set to 61 .Else, if the record_type log field value is equal to CSYNC , then the network.dns.questions.type UDM field is set to 62 .Else, if the record_type log field value is equal to ZONEMD , then the network.dns.questions.type UDM field is set to 63 .Else, if the record_type log field value is equal to SVCB , then the network.dns.questions.type UDM field is set to 64 .Else, if the record_type log field value is equal to HTTPS , then the network.dns.questions.type UDM field is set to 65 .Else, if the record_type log field value is equal to SPF , then the network.dns.questions.type UDM field is set to 99 .Else, if the record_type log field value is equal to UINFO , then the network.dns.questions.type UDM field is set to 100 .Else, if the record_type log field value is equal to UID , then the network.dns.questions.type UDM field is set to 101 .Else, if the record_type log field value is equal to GID , then the network.dns.questions.type UDM field is set to 102 .Else, if the record_type log field value is equal to UNSPEC , then the network.dns.questions.type UDM field is set to 103 .Else, if the record_type log field value is equal to NID , then the network.dns.questions.type UDM field is set to 104 .Else, if the record_type log field value is equal to L32 , then the network.dns.questions.type UDM field is set to 105 .Else, if the record_type log field value is equal to L64 , then the network.dns.questions.type UDM field is set to 106 .Else, if the record_type log field value is equal to LP , then the network.dns.questions.type UDM field is set to 107 .Else, if the record_type log field value is equal to EUI48 , then the network.dns.questions.type UDM field is set to 108 .Else, if the record_type log field value is equal to EUI64 , then the network.dns.questions.type UDM field is set to 109 .Else, if the record_type log field value is equal to TKEY , then the network.dns.questions.type UDM field is set to 249 .Else, if the record_type log field value is equal to TSIG , then the network.dns.questions.type UDM field is set to 250 .Else, if the record_type log field value is equal to IXFR , then the network.dns.questions.type UDM field is set to 251 .Else, if the record_type log field value is equal to AXFR , then the network.dns.questions.type UDM field is set to 252 .Else, if the record_type log field value is equal to MAILB , then the network.dns.questions.type UDM field is set to 253 .Else, if the record_type log field value is equal to MAILA , then the network.dns.questions.type UDM field is set to 254 .Else, if the record_type log field value is equal to ALL , then the network.dns.questions.type UDM field is set to 255 .Else, if the record_type log field value is equal to URI , then the network.dns.questions.type UDM field is set to 256 .Else, if the record_type log field value is equal to CAA , then the network.dns.questions.type UDM field is set to 257 .Else, if the record_type log field value is equal to AVC , then the network.dns.questions.type UDM field is set to 258 .Else, if the record_type log field value is equal to DOA , then the network.dns.questions.type UDM field is set to 259 .Else, if the record_type log field value is equal to AMTRELAY , then the network.dns.questions.type UDM field is set to 260 .Else, if the record_type log field value is equal to TA , then the network.dns.questions.type UDM field is set to 32768 .Else, if the record_type log field value is equal to DLV , then the network.dns.questions.type UDM field is set to 32769 . |
dns_reqtype |
additional.fields [dns_reqtype] |
|
http_code |
network.http.response_code |
|
protocol |
network.ip_protocol |
If the protocol log field value contain one of the following values, then the protocol log field is mapped to the network.ip_protocol UDM field.
|
durationms |
network.session_duration.seconds |
|
devicemodel |
principal.asset.hardware.model |
|
devicename |
principal.asset.asset_id |
|
devicehostname |
principal.asset.hostname |
|
|
principal.asset.platform_software.platform |
If the deviceostype log field value matches the regular expression pattern (?i)win , then the principal.asset.platform_software.platform UDM field is set to WINDOWS .Else, if the deviceostype log field value matches the regular expression pattern (?i)lin , then the principal.asset.platform_software.platform UDM field is set to LINUX . |
deviceosversion |
principal.asset.platform_software.platform_version |
|
company |
principal.user.company_name |
|
department |
principal.user.department |
|
user |
principal.user.email_addresses |
If the user log field value matches the regular expression pattern (^.@.$) or the login log field value matches the regular expression pattern (^.@.$) , then if the user log field value is not empty, then the user log field is mapped to the principal.user.email_addresses UDM field. |
login |
principal.user.email_addresses |
If the user log field value matches the regular expression pattern (^.@.$) or the login log field value matches the regular expression pattern (^.@.$) , then if the user log field value is not empty, then else, the login log field is mapped to the principal.user.email_addresses UDM field. |
deviceowner |
principal.user.userid |
|
clt_sip |
principal.ip |
|
location |
principal.location.name |
|
reqrulelabel |
security_result.rule_name |
|
rule |
security_result.rule_name |
|
|
security_result.action |
If the reqaction log field value matches the regular expression pattern (?i)BLOCK , then the security_result.action UDM field is set to BLOCK .Else, if the reqaction log field value matches the regular expression pattern (?i)ALLOW , then the security_result.action UDM field is set to ALLOW . |
reqaction |
security_result.action_details |
|
|
security_result.category |
If the category log field value is not empty, then the security_result.category UDM field is set to NETWORK_CATEGORIZED_CONTENT . |
category |
security_result.category_details |
|
resrulelabel |
security_result.rule_name |
|
|
security_result.action |
If the resaction log field value matches the regular expression pattern (?i)BLOCK , then the security_result.action UDM field is set to BLOCK .Else, if the resaction log field value matches the regular expression pattern (?i)ALLOW , then the security_result.action UDM field is set to ALLOW . |
resaction |
security_result.action_details |
|
|
security_result.category |
If the respipcategory log field value is not empty, then the security_result.category UDM field is set to NETWORK_CATEGORIZED_CONTENT . |
respipcategory |
security_result.category_details |
|
ecs_slot |
security_result.rule_labels [ecs_slot] |
If the dnsgw_slot log field value is empty, then the ecs_slot log field is mapped to the security_result.rule_name UDM field. |
dnsgw_slot |
security_result.rule_name |
If the dnsgw_slot log field value is not empty, then the dnsgw_slot log field is mapped to the security_result.rule_name UDM field. |
ecs_slot |
security_result.rule_name |
If the dnsgw_slot log field value is not empty, then the ecs_slot log field is mapped to the security_result.rule_labels UDM field. |
dnsapp |
target.application |
|
srv_dip |
target.ip |
|
srv_dport |
target.port |
|
datacentercity |
target.location.city |
|
datacentercountry |
target.location.country_or_region |
|
datacenter |
target.location.name |
|
cloudname |
security_result.detection_fields [cloudname] |
|
dnsappcat |
security_result.detection_fields [dnsappcat] |
|
ecs_prefix |
security_result.detection_fields [ecs_prefix] |
|
error |
security_result.detection_fields [error] |
|
istcp |
security_result.detection_fields [istcp] |
|
ocip |
security_result.detection_fields [ocip] |
|
odevicehostname |
security_result.detection_fields [odevicehostname] |
|
odeviceowner |
security_result.detection_fields [odeviceowner] |
|
odevicename |
security_result.detection_fields [odevicename] |
|
odomcat |
security_result.detection_fields [odomcat] |
|
dnsgw_flags |
security_result.detection_fields[dnsgw_flags] |
|
dnsgw_srv_proto |
security_result.detection_fields[dnsgw_srv_proto] |
|
erulelabel |
security_result.rule_labels [erulelabel] |
|
ethreatname |
security_result.threat_name |
|
durationms |
additional.fields [durationms] |
If the durationms log field value is equal to 1 , then the durationms log field is mapped to the additional.fields.durationms UDM field. |
sourcetype |
additional.fields[sourcetype] |
|
deviceappversion |
additional.fields [deviceappversion] |
|
devicetype |
additional.fields [devicetype] |
|
eedone |
additional.fields [eedone] |
|
tz |
additional.fields [tz] |
|
ss |
additional.fields [ss] |
|
mm |
additional.fields [mm] |
|
hh |
additional.fields [hh] |
|
dd |
additional.fields [dd] |
|
mth |
additional.fields [mth] |
|
yyyy |
additional.fields [yyyy] |
|
mon |
additional.fields [mon] |
|
day |
additional.fields [day] |
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