import paramiko

c = paramiko.SSHClient()
c.set_missing_host_key_policy(paramiko.AutoAddPolicy())
c.connect("140.44.4.71", username="root", key_filename=r'C:\Users\Snarf\.ssh\id_ed25519_snarfnet', timeout=10)

py_script = """import sqlite3

conn = sqlite3.connect('/var/lib/docker/volumes/nginx-proxy-manager_nginx-data/_data/database.sqlite')
cur = conn.cursor()
cur.execute('SELECT id, domain_names, forward_host, forward_port, advanced_config FROM proxy_host WHERE id = 21')
r = cur.fetchone()
print('Host 21:', r[1], '->', r[2], r[3])
print('Advanced config length:', len(r[4]) if r[4] else 0)
if r[4]:
    print(r[4])
conn.close()
"""

stdin, stdout, stderr = c.exec_command("cat > /tmp/check_h21.py")
stdin.write(py_script)
stdin.close()
stdout.read()

stdin, stdout, stderr = c.exec_command("python3 /tmp/check_h21.py")
print(stdout.read().decode())
print(stderr.read().decode())
c.close()