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Category: Troubleshooting
Home Archive for category "Troubleshooting"

Category: Troubleshooting

Troubleshooting

DTLS DDos Attacks: new Citrix ADC / Gateway Firmware available

Related to the article Current DDoS Attacks against Citrix ADC / Gateway, Citrix released yesterday (Jan 5) new firmware images for ADC / Gateway 11.1, 12.1 and 13.0, available on …

more ... "DTLS DDos Attacks: new Citrix ADC / Gateway Firmware available"

Current DDoS Attacks against Citrix ADC / Gateway

Do you remeber December 2019? Or even early January 2020? Those CVE-2019-19781 vulnerability, later known as “Shitrix”? Pretty sure, you will. Well, since Dec 19th we see massive DTLS DDoS …

more ... "Current DDoS Attacks against Citrix ADC / Gateway"

Citrix ADC: LDAP Error Codes

There’s a Chance, you already have seen those LDAP 4xxx error codes while authentication debugging. See CTX138663 article for details.

 Authentication / LDAP / SSON
more ... "Citrix ADC: LDAP Error Codes"

Common Error “Cannot complete your request”

I’m pretty sure, all of you are seeing the well known “Cannot complete your request” error with StoreFront and / or ADC. I collected some useful articles and links related …

 StoreFront
more ... "Common Error “Cannot complete your request”"

Why you should be using VM Notes in PowerShell

Found a nice article on maintaining notes with Hyper-V VMs using PowerShell. IMHO, worth to have a look at, see: https://www.altaro.com/hyper-v/vm-notes-powershell.

 PowerShell

How to check SSL Key / CSR / Certificate Files using OpenSSL

In case you need to verify, if certificate private key / signing request / certificate file do match, use the following openssl commands: openssl rsa -noout -modulus -in {{privatekey_file}} | …

 OpenSSL
more ... "How to check SSL Key / CSR / Certificate Files using OpenSSL"

SD-WAN Center: Central Licensing Issue

In March this year, we ancountered an licensing issue with SD-WAN Center. The latter is used at one of our customer to provide SD-WAN licenses to all the client appliances. …

 Licensing
more ... "SD-WAN Center: Central Licensing Issue"

ADC 12.1-48.x Certificate Issues … again

In recent days, I see ADC admins and consultants complaining about certificate related issues with Citrix ADC 12.1 48.x builds … again. For example, PFX import fails or SSL certificate …

more ... "ADC 12.1-48.x Certificate Issues … again"

Citrix SD-WAN Troubleshooting Guide

Link to Citrix SD-WAN troubleshooting guide containing useful hints and tips when it comes to Citrix SD-WAN troubleshooting: CTX226234.

 Good Practice / Logging

RSA SecurID: Recreate Node Secret for RADIUS Server

A quick side note for future use: if your RADIUS Server’s node secret configured with RSA SecurID Authentication Manager 8.x is corrupted and you need to isse a new one, …

 Authentication / RADIUS
more ... "RSA SecurID: Recreate Node Secret for RADIUS Server"

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  • DTLS DDos Attacks: new Citrix ADC / Gateway Firmware available
  • Current DDoS Attacks against Citrix ADC / Gateway
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