Saturday, October 12, 2024

Receive OpenSSL error from one IP and another one IP is normal


SSL_ERROR_SYSCALL

One destination IP address able to connect another cannot. 
Solution: Add the URL to URL whitelist on Cloud Fortinet Fortigate Firewall

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Identifying and preventing unwanted DNS queries from FortiGate's FQDN Address ObjectYES

FQDN on firewall rule to AWS service, sometime need to fine tune the DNS TTL

Reference:

Explanation of the FQDN default cache-ttl... - Fortinet Community


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Fortigate DNS and Server DNS different case connection rejected on firewall

When the destination URL on CDN e.g. AWS. 

If your Fortigate DNS and Server DNS different case connection denied on firewall

Solution:
To align with those device DNS is same.

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Friday, October 11, 2024

How to check Lenovo Laptop "Type"

When you select the BIOS update, you will see there is a "Type" under the laptop model:

To check your laptop "Type", go to the system information and check the "system Model" and "BaseBoard Product":


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Wednesday, October 2, 2024

Install Deepin 23 on DELL 5400 laptop


After the installation, you will need to run the system update to install several update.

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