Kesalahan stunnel HTTPS: 1408F09B: Rutinitas SSL: ssl3_get_record: permintaan proxy https

Question

Saya mengkonfigurasi proxy HTTPS dengan stunnel dan squid.

Tapi, saya menerima halaman kesalahan Mozilla "Sambungan Aman Gagal", jika saya membuat permintaan browser melalui port 44444 (stunnel).

Apa yang saya lewatkan?

1. Jika saya membuat permintaan browser langsung ke (https://192.168.0.101:44444) stunnel menerima koneksi pada port 44444 dan berhasil meneruskan lalu lintas ke port proxy squid (55555), sebagai hasilnya, halaman kesalahan squid diterima.

2. Jika saya membuat permintaan melalui port squid (55555), semuanya bekerja dengan baik.

Sertifikat SSL ditandatangani sendiri. Dihasilkan oleh perintah ini:

sudo openssl req -nodes -new -days 365 -newkey rsa:1024 -x509 -keyout serverkey.pem -out servercert.pem

stunnel.log

2020.10.01 17:54:05 LOG7[main]: Found 1 ready file descriptor(s)
2020.10.01 17:54:05 LOG7[main]: FD=4 events=0x2001 revents=0x0
2020.10.01 17:54:05 LOG7[main]: FD=6 events=0x2001 revents=0x1
2020.10.01 17:54:05 LOG7[main]: Service [squid] accepted (FD=3) from 10.140.37.30:42284
2020.10.01 17:54:05 LOG7[33]: Service [squid] started
2020.10.01 17:54:05 LOG7[33]: Option TCP_NODELAY set on local socket
2020.10.01 17:54:05 LOG5[33]: Service [squid] accepted connection from 10.140.37.30:42284
2020.10.01 17:54:05 LOG6[33]: Peer certificate not required
2020.10.01 17:54:05 LOG7[33]: TLS state (accept): before SSL initialization
2020.10.01 17:54:05 LOG3[33]: SSL_accept: 1408F09B: error:1408F09B:SSL routines:ssl3_get_record:https proxy request

stunnel.conf

chroot = /var/lib/stunnel4/
setuid = stunnel4
setgid = stunnel4

pid = /stunnel4.pid

debug = 7
output = /stunnel.log
syslog = no

cert = /etc/stunnel/servercert.pem
key = /etc/stunnel/serverkey.pem

verify = 1

CApath = /certs

CRLpath = /crls

client = no
[squid]
accept = 44444
connect = 55555

squid.conf

acl localnet src 192.168.0.0/16

acl SSL_ports port 443
acl Safe_ports port 80
acl Safe_ports port 21
acl Safe_ports port 443
acl Safe_ports port 70
acl Safe_ports port 210
acl Safe_ports port 1025-65535
acl Safe_ports port 280
acl Safe_ports port 488
acl Safe_ports port 591
acl Safe_ports port 777
acl CONNECT method CONNECT


http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports

http_access allow localhost manager
http_access deny manager
http_access allow localnet
http_access allow localhost
http_access allow all

http_port 55555

coredump_dir /var/spool/squid
refresh_pattern ^ftp:           1440    20%     10080
refresh_pattern ^gopher:        1440    0%      1440
refresh_pattern -i (/cgi-bin/|\?) 0     0%      0
refresh_pattern (Release|Packages(.gz)*)$     0       20%     2880
refresh_pattern .               0       20%     4320

Answer 1

Semuanya baik-baik saja dengan konfigurasi di sisi stunnel. Masalahnya ada pada klien saya, karena kesalahan konfigurasi, itu tidak memulai handshake SSL \ TLS.