We have one particular website that our client computers that are inside our network are now being blocked from(Which is to say that they just won't load - No error codes). The site has always loaded but suddenly stopped. This site can be accessed via other networks outside of our LAN with no issue. It's just one site but it's a webhosting site so we cannot login from the office to manage our websites so it's important to us. There were no changes on any server or firewall. We can get to all other websites but this one.
DNS Server: Small Business Server 2008 - This is the only DNS server and is the only computer that can still access the site in question
-Checked DNS Config - using forwarders to the ISP DNS servers. It's been working for over 5 years
-Cleared DNS Cache
-Restarted DNS Service
-Ran the "fix my network" wizard from the SBS console but it didn't find anything to fix
Clients: Windows 7 Pro and MAC OSX
-Configured properly to the local DNS Server via DHCP or Manually configured IP but no go
-DHCP working properly
-Checked Windows firewall - configured for DNS
-Opened a ticket and they checked their end out and it was clear
-Unplugged our firewall appliance from the ISP equipment and replaced it with just a laptop configured with the ISP addressing and the site worked.
Gateway(Firewall Appliance Sonicwall NSA)
-Verified that the DNS server itself which has the same addressing as the clients can access the site and it does.
-Checked logs - no indication of the site being blocked. These servers are in the USA and we don't content filter anything from the USA but went ahead and made this site a safe site but still no go.
-Went ahead and made a rule to allow traffic to this domains address but still no go
: It seems to be an issue with the DNS server service itself but I cannot find anything wrong. The clients can get to all other websites but only the DNS server itself can get to this one website(netjelly.com)
Thank you for your efforts. I took a shot and asked the web team to open a ticket with that site's support team and their FW was stopping us from getting to the webservers. Chalk one up to Tracert. Thanks
More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.
Because virtualization becomes more and more common, and, with Microsoft Hyper-V included in Windows Server at no additional costs, and, most server hardware nowadays is more than capable of running a physical Small Business Server (SBS) 2008 or 201…
You may have discovered the 'Compatibility View Settings' workaround for making your SBS 2008 Remote Web Workplace 'connect to a computer' section stops 'working around' after a Windows 10 client upgrade. That can be fixed so it 'works around' agai…
This Micro Tutorial will give you a basic overview how to record your screen with Microsoft Expression Encoder. This program is still free and open for the public to download.
This will be demonstrated using Microsoft Expression Encoder 4.
Internet Business Fax to Email Made Easy -
With eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number.
You'll receive secure faxes in your email, f…