kazulog@sv2:~$ cat /etc/os-release | head -2
PRETTY_NAME="Ubuntu 26.04 LTS"
NAME="Ubuntu"
kazulog@sv2:~$ curl -sS -u ftpdemo:FtpIsPlaintext ftp://192.168.100.10/hello.txt; echo "rc=$?"
curl: (67) Access denied: 530
rc=67
kazulog@sv2:~$ curl -sS --ssl-reqd -k -u ftpdemo:FtpIsPlaintext ftp://192.168.100.10/hello.txt; echo "rc=$?"
hello from ftp server sv1
rc=0
kazulog@sv2:~$ curl -sS --ssl-reqd -k -T /tmp/upload.txt -u ftpdemo:FtpIsPlaintext ftp://192.168.100.10/upload/curl.txt; echo "rc=$?"
rc=0