About Mathew Huynh

Mathew Huynh · 10-14-2015

Cisco has acknowledged that an outage has occurred for the update-manifests server with certificate validation error alerts being sent by the appliances.Our IT team has confirmed the outage is now resolved. We will update this post as soon as more in...

Mathew Huynh · 10-14-2015

Cisco has acknowledged that an outage has occurred for the update-manifests server with certificate validation errors.Our IT team has confirmed the outage is now resolved. We will update this post as soon as more information is provided.Please do not...

Mathew Huynh · 05-16-2022

Hey Sysresuem, I assume you mean you want the URL redirection which you see in the email to NOT be https://secure-web.cisco.com/hash/url ? If that's the case the redirection are currently (from memory) a fixed format on how the rewrites work; you c...

Mathew Huynh · 05-16-2022

Hey Troster, it's quite difficult to put a finger on this but being listed on UCEprotect probably can contribute to it. Talos intelligence also looks into a lot of other items and variable values. If servers you're connecting to are using Cisco int...

Mathew Huynh · 05-16-2022

Hello haroungh, I would definitely recommend reviewing Ken's comments to start off with. Locate this information on the ESA(s) which are failing to send to these domains and please log into the CLI if you do have access to it and attempt a telnet t...

Mathew Huynh · 03-27-2022

Hey MohdZulFahmiHassan, That type of setup is done via the command line only as it's the message filter syntax. https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA_Admin_Guide_11_1/b_ESA_Admin_Guide_chapter_01000.html This...

Mathew Huynh · 01-20-2022

Hey Ah15, If that was found within the message tracking at the DCID level; then i would venture to advise you to check the email sender domain per the message. I assume this is an outbound email as you are sending out to the internet and they rej...

Member Since	‎11-11-2012 10:13 PM
Date Last Visited	‎05-23-2022 03:47 PM
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[RESOLVED] Oct 14 - Update-Manifests Certificate Validation Errors

October 14th - Updater SSL certificate Error [RESOLVED]

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