Website fails to connect
I have been using Gandi Live DNS for months now. However, since yesterday it stopped working. I have recently updated to 2.4.5-RELEASE-p1, not sure if that is the issue.
The problem is that the following URL required for Gandi DNS fails to connect,
$ curl -v https://dns.api.gandi.net/api/v5/nameservers/gandi.net * Trying 220.127.116.11:443... * TCP_NODELAY set * Connected to dns.api.gandi.net (18.104.22.168) port 443 (#0) * ALPN, offering h2 * ALPN, offering http/1.1 * successfully set certificate verify locations: * CAfile: /etc/ssl/certs/ca-certificates.crt CApath: /etc/ssl/certs * TLSv1.3 (OUT), TLS handshake, Client hello (1): * OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to dns.api.gandi.net:443 * Closing connection 0 curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to dns.api.gandi.net:443
The URL itself is fine as i have checked it with another ISP.
My pfsense router is setup to use PPPoE and sits behinds a bridged modem. If i let the modem do the routing/pppoe, then the URL is reachable. So there is something in pfsense which is causing the said website not to respond.
If i do a telnet to the port 443 of the website, then i do get a response
$ telnet dns.api.gandi.net 443 Trying 22.214.171.124... Connected to dns.api.gandi.net. Escape character is '^]'.
So, the firewall is not blocking the connection. However, i dont understand why the SSL connection does not work.
Anybody has a clue?
I set the MTU of the PPPoE interface to 1472 and the website connected fine. After that i removed the MTU setting and it is connecting at 1492.
@trumee Did you solve this problem yourself? Because just recently you asked for help)
@valentinius Yes, as i posted above the issue is resolved.