Website Not Accessible
Connection failed to proxy or origin
When the user accesses the website, the browser displays "Connection to 192.168.27.30:80 failed". When the user accesses https://abc.safesquid.com/ via proxy and logs in with a corporate email ID, the browser may show "Connection to abc.safesquid.com:443 failed".
Possible causes
The destination website may be down, or the user may be unable to reach the site because of internet slowness.
Troubleshooting
Website or origin unreachable
Check whether the website is opening without proxy configuration inside the browser (No proxy in the middle).
If the website is not opening without a proxy, then it is not the problem with SafeSquid.
If it is opening without a proxy, then run the below command to verify whether the website is resolving or not.
nslookup 192.168.27.30
To check SafeSquid server is connecting to 192.168.27.30 on port 80
telnet WEBSITE PORT_TO_CONNECTON
When the website cannot be reached, example output:
telnet 192.168.27.30 80
Trying 192.168.27.30...
telnet: Unable to connect to remote host: No route to host
When the website is reachable, the output is:
telnet WEBSITE PORT_TO_CONNECTON
When the website cannot be reached:
telnet 192.168.27.30 80
When the website can be reached:
root@dev:~# telnet 192.168.27.30 80
Trying 192.168.27.30...
Connected to 192.168.27.30.
Escape character is '^]'.
On-premises with directory services (conditional DNS)
When the server is in an on-premises environment with directory services, the directory DNS server performs DNS resolution.
To check the configuration on the local internal network and its address record pointed on an active directory (AD) or local DNS server.
Run the below commands on the command prompt for abc.safesquid.com
nslookup abc.safesquid.com
If the website is resolving to the local internal network e.g. (10.10.11.78,10.10.128.106)
Configure conditional forwarding to the SafeSquid local caching DNS server.
Go to the path: /etc/bind/
and create a file.
vim named.conf
root@swg:/etc/bind# vim named.conf
// This is the primary configuration file for the BIND DNS server named.
//
// Please read /usr/share/doc/bind9/README.Debian.gz for information on the
// structure of BIND configuration files in Debian, BEFORE you customize
// this configuration file.
//
// If you are just adding zones, please do that in /etc/bind/named.conf.local
include "/etc/bind/named.conf.options";
include "/etc/bind/named.conf.local";
include "/etc/bind/named.conf.default-zones";
include "/etc/bind/safesquid.dns.conf";
include "/etc/bind/abc.safesquid.com";
Go to the path
cd /etc/bind/
And create a file
vim abc.safesquid.co
Add below lines
zone "abc.safesquid.com" {
type forward;
forwarders {10.10.124.101;};
};
Command to restart bind9 service:
/etc/init.d/bind9 restart
Verify whether the website is resolving to the local IP successfully or not.