Send https request with openssl s_client

bgstack15

2022-10-28 08:48

Inspired by https://news.ycombinator.com/item?id=32903694.

To send a simple http get with openssl s_client, use this template.

sed -r -e 's/$/\r/;' <<EOF | openssl s_client -connect www.example.com:443 -ign_eof
GET /internal/directory.html HTTP/1.1
Host: www.example.com
Connection: close

EOF

Or with printf.

printf 'GET /internal/directory.html HTTP/1.1\r\nHost: www.example.com\r\nConnection: close\r\n\r\n' | openssl s_client -connect www.example.com:443 -ign_eof

Here is a sample post:

sed -r -e 's/$/\r/;' <<EOF | openssl s_client -connect server3.ipa.internal.com:443 -ign_eof
POST /coupons/search/ HTTP/1.0
Host: server3.ipa.internal.com
Connection: close
Content-Type: text/plain;charset=UTF-8
Accept: text/plain

cheese
EOF

Knowledge Base

Comments