Strange timeout with ruby net/http

I am trying to download this file with ruby:

https://evs.nci.nih.gov/ftp1/CDISC/ReadMe.txt

Here is a sample program, showing the issue (the comment shows what I get):

require 'uri'require 'net/http'require 'pp'url = 'https://evs.nci.nih.gov/ftp1/CDISC/ReadMe.txt'uri = URI.parse(url)begin  http = Net::HTTP.new(uri.host, uri.port)  http.use_ssl = true  http.start  p http.get(uri.path)  http.finishrescue => ex  puts "error: #{ex.message} (#{ex.class})"  # error: Failed to open TCP connection to evs.nci.nih.gov:443 (Blocking operation timed out!) (IO::TimeoutError)end

I tried to understand where the problem stands, and found it is due to this:

begin  p TCPSocket.new("evs.nci.nih.gov", 443, connect_timeout: 90)rescue => ex  puts "error: #{ex.message} (#{ex.class})"  # error: Blocking operation timed out! (IO::TimeoutError)end

I tried to get more information like this:

pp Addrinfo.getaddrinfo("evs.nci.nih.gov", 443)# [#<Addrinfo: [2600:1f18:2102:3600:b4de:3448:7a8c:7ecd]:443 (evs.nci.nih.gov)>,#  #<Addrinfo: [2600:1f18:2102:3601:4147:d992:65b4:4ac1]:443 (evs.nci.nih.gov)>,#  #<Addrinfo: 52.1.83.88:443 (evs.nci.nih.gov)>,#  #<Addrinfo: 3.224.99.192:443 (evs.nci.nih.gov)>]

Now this works:

p TCPSocket.new("3.224.99.192", 443, connect_timeout: 90)# #<TCPSocket:fd 3, AF_INET, 192.168.1.25, 2433>

Ok, then let's try that:

url = 'https://3.224.99.192/ftp1/CDISC/ReadMe.txt'uri = URI.parse(url)begin  http = Net::HTTP.new(uri.host, uri.port)  http.use_ssl = true  http.start  p http.get(uri.path)  http.finishrescue => ex  puts "error: #{ex.message} (#{ex.class})"  # error: hostname "3.224.99.192" does not match the server certificate (OpenSSL::SSL::SSLError)end

Yeah, I can figure that out.

I tried curl:

curl -o "ReadMe.txt" --trace-ascii "curl.log" "https://evs.nci.nih.gov/ftp1/CDISC/ReadMe.txt"

It works like a charm.Here is the log:

== Info:   Trying [2600:1f18:2102:3601:4147:d992:65b4:4ac1]:443...== Info:   Trying 3.224.99.192:443...== Info: Connected to evs.nci.nih.gov (3.224.99.192) port 443== Info: schannel: disabled automatic use of client certificate== Info: ALPN: curl offers http/1.1== Info: ALPN: server accepted http/1.1== Info: using HTTP/1.1=> Send header, 99 bytes (0x63)0000: GET /ftp1/CDISC/ReadMe.txt HTTP/1.10025: Host: evs.nci.nih.gov003c: User-Agent: curl/8.4.00054: Accept: */*0061: <= Recv header, 17 bytes (0x11)0000: HTTP/1.1 200 OK<= Recv header, 37 bytes (0x25)0000: Date: Sat, 20 Apr 2024 16:27:02 GMT<= Recv header, 26 bytes (0x1a)0000: Content-Type: text/plain<= Recv header, 22 bytes (0x16)0000: Content-Length: 2157<= Recv header, 24 bytes (0x18)0000: Connection: keep-alive<= Recv header, 30 bytes (0x1e)0000: Server: Apache/2.4.54 (Unix)<= Recv header, 46 bytes (0x2e)0000: Strict-Transport-Security: max-age=31536000;<= Recv header, 46 bytes (0x2e)0000: Last-Modified: Fri, 29 Mar 2024 04:31:09 GMT<= Recv header, 27 bytes (0x1b)0000: ETag: "86d-614c51be679a1"<= Recv header, 22 bytes (0x16)0000: Accept-Ranges: bytes<= Recv header, 2 bytes (0x2)0000: <= Recv data, 2157 bytes (0x86d)0000: March 29, 2024.(...)086b: SC== Info: Connection #0 to host evs.nci.nih.gov left intact

Any idea what goes wrong with ruby?