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 · 05-22-2023

Hello Ikgs, I understand the sentiment, this has been a feature I've been advocating in terms of getting implemented into the environment as we want to continue to improve in the security space. As at this moment, TLS1.3 is slated to be made availabl...

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...

Member Since	‎11-11-2012 10:13 PM
Date Last Visited	‎05-25-2023 01:45 AM
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[RESOLVED] Oct 14 - Update-Manifests Certificate Validation Errors

October 14th - Updater SSL certificate Error [RESOLVED]

Re: Does Cisco's ESA support TLS 1.3?

Re: Make proxy redirection more beautiful

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