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[OSDOCS-15293] Update nw-mutual-tls-auth.adoc #96042

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Jul 17, 2025
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[OSDOCS-15293] Update nw-mutual-tls-auth.adoc #96042

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17 changes: 12 additions & 5 deletions modules/nw-mutual-tls-auth.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -30,9 +30,9 @@ If the `clientCA` value specifies an X509v3 certificate revocation list (CRL) di
[source,terminal]
----
$ oc create configmap \
router-ca-certs-default \
--from-file=ca-bundle.pem=client-ca.crt \// <1>
-n openshift-config
router-ca-certs-default \
--from-file=ca-bundle.pem=client-ca.crt \// <1>
-n openshift-config
----
<1> The config map data key must be `ca-bundle.pem`, and the data value must be a CA certificate in PEM format.

Expand Down Expand Up @@ -61,9 +61,16 @@ $ oc edit IngressController default -n openshift-ingress-operator
allowedSubjectPatterns:
- "^/CN=example.com/ST=NC/C=US/O=Security/OU=OpenShift$"
----

. Optional, get the Distinguished Name (DN) for `allowedSubjectPatterns` by entering the following command.
+
[source,terminal]
----
$ openssl x509 -in custom-cert.pem -noout -subject
subject= /CN=example.com/ST=NC/C=US/O=Security/OU=OpenShift
$ openssl x509 -in custom-cert.pem -noout -subject
----
+
.Example output
[source,text]
----
subject=C=US, ST=NC, O=Security, OU=OpenShift, CN=example.com
----