Yes restarting the Kafka solves the problem but as it is dynamic there is
no need to restart the Kafka right?

On Fri, Jun 4, 2021, 12:13 Ran Lupovich <ranlupov...@gmail.com> wrote:

> Restarting the broker solves the problem? Do your clients fully disconnect
> and reconnect?
>
> בתאריך יום ו׳, 4 ביוני 2021, 09:24, מאת Anjali Sharma ‏<
> sharma.anjali.2...@gmail.com>:
>
> > Hi Ran,
> >
> > Thank you so much for the help, but had already gone through the
> > documentation, but despite doing the same thing it is not working , we
> are
> > not getting any client certificate request as such , is there anything
> that
> > I am missing in the executing the command or we need to restart the
> brokers
> > or anything else we need to do?
> >
> >
> > Thanks & Regards
> > Anjali
> >
> > On Fri, Jun 4, 2021 at 11:17 AM Ran Lupovich <ranlupov...@gmail.com>
> > wrote:
> >
> > > Adding this information that supports your assumptions that it should
> be
> > > dynamically supportedNotice the update mode -
> > >
> > > Dynamic Update Mode option in Broker Configurations
> > > <
> > >
> >
> https://docs.confluent.io/platform/current/installation/configuration/broker-configs.html#cp-config-brokers
> > > >
> > > for
> > > the update mode of each broker configuration.
> > >
> > >    - read-only: Requires a broker restart for update.
> > >    - per-broker: May be updated dynamically for each broker.
> > >    - cluster-wide: May be updated dynamically as a cluster-wide
> default.
> > >    May also be updated as a per-broker value for testing
> > >
> > >
> > >
> > > ssl.client.auth
> > > <
> > >
> >
> https://docs.confluent.io/platform/current/installation/configuration/broker-configs.html#brokerconfigs_ssl.client.auth
> > > >
> > >
> > > Configures kafka broker to request client authentication. The following
> > > settings are common:
> > >
> > >    - ssl.client.auth=required If set to required client authentication
> is
> > >    required.
> > >    - ssl.client.auth=requested This means client authentication is
> > >    optional. unlike required, if this option is set client can choose
> not
> > > to
> > >    provide authentication information about itself
> > >    - ssl.client.auth=none This means client authentication is not
> needed.
> > >
> > > Type: string
> > > Default: none
> > > Valid Values: [required, requested, none]
> > > Importance: medium
> > > Update Mode: per-broker
> > >
> > > בתאריך יום ו׳, 4 ביוני 2021, 08:30, מאת Anjali Sharma ‏<
> > > sharma.anjali.2...@gmail.com>:
> > >
> > > > Dear All,
> > > >
> > > > When trying to configure mtls without restarting the brokers it is
> not
> > > > working.
> > > > For mutualTLS "ssl.client.auth" should be set to "required". So, if
> we
> > > are
> > > > trying to do the dynamic update using the below command
> > > >
> > > > *sh /opt/kafka/bin/kafka-configs.sh --bootstrap-server
> localhost:28104
> > > > --entity-type brokers --entity-name 117373 **--alter --add-config
> > > > listener.name.app.ssl.client.auth=required*
> > > > *Completed updating config for broker 117373.*
> > > >
> > > >
> > > >
> > > >
> > > > *sh /opt/kafka/bin/kafka-configs.sh --bootstrap-server
> localhost:28104
> > > > --entity-type brokers --entity-name 117373 --describeDynamic configs
> > for
> > > > broker 117373 are: listener.name.app.ssl.client.auth=required
> > > > sensitive=false
> > > >
> > >
> >
> synonyms={DYNAMIC_BROKER_CONFIG:listener.name.app.ssl.client.auth=required,
> > > > STATIC_BROKER_CONFIG:ssl.client.auth=none,
> > > > DEFAULT_CONFIG:ssl.client.auth=none}*
> > > > Dynamic command execution is success but in captured tcpdump(pcap)
> > > > "Certificate Request" is not sent from Server below enter image
> > > description
> > > > here.
> > > >
> > > >
> > > > But if we alter manually and restart Kafka we can see "Certificate
> > > > Request" from Server in tcpdump.
> > > >
> > > > Please help in resolving the dynamic update of altering
> > > > "ssl.client.auth=Required"
> > > >
> > > >
> > > > Pcap image is attached
> > > >
> > > >
> > >
> >
>

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