Some time ago I published a post that describes the new rules a certificate has to follow to be accepted by Apple’s current devices (iPhone, iPad, MacOS PCs). Besides some rules about algorithms and bit length, that are usually met by all certificate authorities, there are some requirements, you will probably not see at first view. A certificate generated later than July 1st 2019 must not be longer valid than 825 days and the certificate must contain the value “Server Authentication” (OID 184.108.40.206.220.127.116.11.1) as Extended Key Usage (EKU).
In my last post I
mentioned that the IP Office certificate authority is able to create
certificates that work with iPhones and other Apple devices. That was only half the truth, because only IP
Office servers (Server Edition or Application Server) on at least release
18.104.22.168 create valid certificates.
Happy new year all together!
With the end of the year 2017 the self signed certificates of many IP Office PBXs expired. Compare my last post from July 2017. Hopefully you were able to renew the certificates of all your systems in the meantime.
If not you will get a warning if you try to login the next time.
You will get this warning, if you connect to an IP Office that uses an expired certificate.
In this case it is now the time to react. To get access to the IP Office security settings you have to adjust the IP Office Manager preferences. You have to allow secure access without any certificate checks:
This images shows how to disable certificate checks in IP Office Manager preferences
Now you are able to login into security settings and to issue a new certificate.
Hope that helps…
If you need further help with IP Office you can contact me through my main website: https://www.fwilke.com/home
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The last days we got many warning messages when connecting to IP Office IP500 systems that the server certificate will expire at the end of this year.
Warning about expiring IPO certificate
But why do we get a real bunch of those messages this time? Continue reading