Issue at Sonicwall

Lakshmana

@scottalanmiller said:
No ISP,no MAlware,No DNS issue.No proxy is used by the client.I cant identify the issue with the sonicwall.How to identify that?

thanksajdotcom

@Lakshmana said:

@scottalanmiller said:
No ISP,no MAlware,No DNS issue.No proxy is used by the client.I cant identify the issue with the sonicwall.How to identify that?

Ok, how do you know it isn't the ISP, malware, DNS or a proxy server? Before you casually dismiss these, can you just clarify why you know it's none of these things?

Lakshmana

@thanksajdotcom said: I am only maintaining the customer site and there is no such above things because last month only ISP provider checked everything in front of me and I am maintaining the Admin console of the Antivirus in that client place.There is no proxy server is used.DNS is also pinged properly from the sonicwall where the ping was successful.

thanksajdotcom

@Lakshmana said:

@thanksajdotcom said: I am only maintaining the customer site and there is no such above things because last month only ISP provider checked everything in front of me and I am maintaining the Admin console of the Antivirus in that client place.There is no proxy server is used.DNS is also pinged properly from the sonicwall where the ping was successful.

Can you ping Yahoo or MSN or the like? Does it resolve the hostname to an IP?

Lakshmana

@thanksajdotcom No yahoo.com is not pinging.only the google.com is pinging

thanksajdotcom

@Lakshmana said:

@thanksajdotcom No yahoo.com is not pinging.only the google.com is pinging

Do you have your forwarders setup?

thanksajdotcom

Why Gmail works I'm not sure but if your internal works but external doesn't, you don't have forwarders setup, or setup properly.

Lakshmana

@thanksajdotcom The sonicwall is configured with the load balancer of two ISP.Whether that me any issue?The content filtering is there for the client but the license whether that may the issue.

Dashrender

unless the content filter is set to filter everything except google.com that's not your problem.

What is the DNS being used by the PCs, by the servers?
what IPs are set as the forwarder IPs in your Active Directory DNS servers (assuming you're using AD DNS)

What happens when you ping those DNS servers from the machine that declares them?

Lakshmana

@Dashrender said:
There is no AD is present and the DNS is pinging from server as well as Desktop.DNS is 8.8.8.8 and 4.2.2.2

thanksajdotcom

@Dashrender said:

unless the content filter is set to filter everything except google.com that's not your problem.

What is the DNS being used by the PCs, by the servers?
what IPs are set as the forwarder IPs in your Active Directory DNS servers (assuming you're using AD DNS)

What happens when you ping those DNS servers from the machine that declares them?

Yes, what is handling your DNS?

thanksajdotcom

@Lakshmana said:

@Dashrender said:
There is no AD is present and the DNS is pinging from server as well as Desktop.DNS is 8.8.8.8 and 4.2.2.2

What kind of server is it?

Dashrender

@Lakshmana said:

@Dashrender said:
There is no AD is present and the DNS is pinging from server as well as Desktop.DNS is 8.8.8.8 and 4.2.2.2

Great, that makes this much easier. Sounds like traffic routes directly from the desktop -> sonicwall -> ISP -> internet.

If you ping www.yahoo.com or www.microsoft.com, do you get an IP back? and does it ping?

Dashrender

Also, just for helpful information, what is the output of

Ipconfig /all

from one of the workstations?

Lakshmana

@Dashrender The ipconfig /all is used in command prompt and got the IP of
192.168.1.145 Subnet:255.255.255.0 Default Gateway:IP of Sonicwall and DNS:8.8.8.8
Secondary DNS 4.2.2.2

Lakshmana

This post is deleted!

Lakshmana

@Dashrender said:
When IP of microsoft and yahoo is pinged destination host unreachable

thanksajdotcom

@Lakshmana said:

@Dashrender The ipconfig /all is used in command prompt and got the IP of
192.168.1.145 Subnet:255.255.255.0 Default Gateway:IP of Sonicwall and DNS:8.8.8.8
Secondary DNS 4.2.2.2

Ok, try flushing your local DNS cache.

ipconfig /flushdns

Just out of curiosity, what browser and OS are you using?

thanksajdotcom

@Lakshmana said:

@Dashrender said:
When IP of microsoft and yahoo is pinged destination host unreachable

Ok, try pinging by IP.

ping 98.138.253.109

Does that go through?

Dashrender

@Lakshmana said:

@Dashrender said:
When IP of microsoft and yahoo is pinged destination host unreachable

But did it resolve the IP? or give you a host not found message?

Also, what do you get when you ping www.google.com