IP hosted file in host file doesnt load the destinated page in our organization laptop but personal laptop it opens once file is hosted

[kalaivaniL3]

I have got the Ip host entry from the AEM, when i try use in my organization laptop after entring the hosts file and saved it, Then opening chrome and accessing URL it doesn't load the page, and my organization cisco umbrella agent is blocking the url and destinated page i don't get it.

when i checked with my IT team eventhough they say they have allowed i dont get the required page instead loading a another page, which is quite strange, and our IT team requested for cisco ip address should allowed in the adobe server from adobe end.Is that so?

[giuseppebag]

To address the issue you can follow these steps:

1. Verify host entry and flush DNS cache:
- Ensure the host entry in the hosts file is accurate with no typos and uses the correct IP address.
- Flush the DNS cache to remove any outdated records. For Windows, use "ipconfig /flushdns". For Mac, use "sudo dscacheutil -flushcache".

2. Check network connectivity:
- Use "nslookup" or "ping" to verify if the domain resolves correctly and if the server is reachable.
- Utilize browser developer tools or command-line tools like "curl" to check the HTTP response and identify if the request is blocked or redirected.

3. Inspect security and proxy settings:
- Confirm that the Cisco IP address is allowed on the Adobe AEM server, checking for any firewall restrictions.
- Verify proxy configurations to ensure they are correctly set and not intercepting the request improperly.

4. Coordinate with IT for diagnostics:
- Request IT to run network diagnostics using "traceroute" or "mtr" to pinpoint where the request fails.
- Ensure the IT team checks if the Cisco Umbrella agent filtering rules need adjustment or whitelisting of the required IP addresses.

5. Check HTTPS requirements:
- Ensure the AEM URL is accessed via HTTPS if required, and that SSL certificates are valid and recognized.

[AmitVishwakarma]

Hi @kalaivaniL3 ,

Cisco Umbrella overrides your hosts file and forwards DNS queries to its own DNS filtering service, blocking or redirecting requests even if you map IPs in hosts file. That's why you’re getting a different page or no access.

Step 1: Confirm Hosts File and DNS Resolution

Verify your hosts file entry is correct:

<correct-IP-address>  your-domain.com

Run this command on your org laptop:

nslookup your-domain.com

If you see Cisco Umbrella DNS IP (like 208.67.x.x) → Cisco is overriding your hosts file.
If you see your custom IP → Hosts file is working.

Step 2: Force DNS Resolution via Hosts File

Cisco Umbrella bypasses your hosts file by forcing DNS. To override:

Open Command Prompt (Admin):

ping your-domain.com

Does it ping the correct IP? If NOT → Cisco is blocking.

Step 3: Bypass Cisco Umbrella (Guaranteed Fixes)

Option A: Use Direct IP Address (Temporary)

Access using the IP directly:

http://<your-IP-address>

This bypasses DNS and Umbrella. If the site loads, issue is definitely DNS filtering.

Option B: Use Local Proxy Override (Permanent Fix)

Cisco Umbrella cannot block localhost traffic. You can:

Set up a local proxy (like Fiddler/Charles Proxy).
Map your-domain.com to your desired IP inside the proxy settings.
Route browser traffic through the local proxy → Cisco won’t block this.

Option C: IT Team Whitelisting Request (Correct One)

Your IT must:

Whitelist the custom domain/IP in Cisco Umbrella under destination allow list.
Disable DNS filtering for internal test environments.
Ensure there’s no forced proxy or SSL interception for that domain.

Note: Asking Adobe to allow Cisco IPs is incorrect. Adobe server doesn’t block Cisco IPs. Problem is outbound, not inbound.

Final Workaround (If IT Cannot Help):
Use VPN (bypasses Cisco Umbrella).
Or host locally on personal laptop and tunnel using Ngrok or Cloudflare Tunnel to your org laptop.

Regards,
Amit Vishwakarma