Unable to connect to APNS sandbox endpoint

Question

Created 2w

Replies 3

Boosts 0

Participants 2

I am unable to connect to APNs sandbox push endpoint from our backend servers. It works fine when hitting the request from my local machine but it fails from the infra servers. Here are the complete curl details.

Endpoint: https://api.sandbox.push.apple.com:443 CURL request and response:

curl -v https://api.sandbox.push.apple.com:443

Trying 17.188.168.149:443...
Connected to api.sandbox.push.apple.com (17.188.168.149) port 443
ALPN: curl offers h2,http/1.1
Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
TLSv1.2 (OUT), TLS handshake, Client hello (1):
CAfile: /etc/pki/tls/certs/ca-bundle.crt
CApath: none
OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to api.sandbox.push.apple.com:443
Closing connection

curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to api.sandbox.push.apple.com:443

There are no issues with Production endpoint. Can someone help? Verified all certificates. Everything worked fine until 29th July but started failing since 30th July

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Answer 1

Engineer OP

Apple

2w

We don't see a particular rise in TLS events starting on July 30th.

While this is likely an issue in your infra, firewall, or something else in the middle, we can confirm this if you have a PCAP or let us know the source public IP address that we would see.

0

Answer 2

shivam-singh-ct OP

2w

@Engineer Here is the PCAP file. Additionally, Here is the outbound public IP : 3.251.214.255

apple_push_sandbox_pcap.txt

0

Answer 3

shivam-singh-ct OP

2w

@Engineer I am still unable to connect to APNs. Can you please help here?

0