Junos OS

 root-authentication {
    encrypted-password "$6..."; ## SECRET-DATA
}
login {
    user admin {
        full-name Administrator;
        uid 2000;
        class super-user;
        authentication {
            encrypted-password "$6..."; ## SECRET-DATA
        }
    }

services {
    ftp;
    ssh {
        protocol-version v2;
        connection-limit 10;
    }
}

run show version 
Hostname: qfx5220-32cd-am4-1
Model: qfx5220-32cd
Junos: 21.1R1.11-EVO
Yocto: 2.2.1
Linux Kernel: 4.8.28-WR2.2.1_standard-gce2ff76
JUNOS-EVO OS 64-bit [junos-evo-install-qfx-ms-x86-64-21.1R1.11-EVO]

5220 connected via et-0/0/0 with static ip-sw and default route.

No filters by config.

From outside:

1. ssh root@ip-sw The password always does not match. Although I changed it several times and just copied the method copy-paste
2. ssh admin@ip-sw OK
3. ftp ip-sw - no ftp service
4. nmap ip-sw PORT   STATE    SERVICE
   21/tcp filtered ftp
   22/tcp open     ssh
   79/tcp filtered finger

any ideas how to upload junos?

1.  Remote Access Overview | Junos OS Evolved | Juniper Networks (You've not been typing it wrong, the default for root-login is "deny-password")
2. "ok"
3. no idea (genuinely have never used ftp to a juniper, and didn't even notice there was an ftp service available!)
4. either pull to the device after login, or push with scp, since you can ssh on as admin.

~$touch eusahues.txt
~$scp eusahues.txt ip-sw:
Password:
eusahues.txt                                                         100%    0     0.0KB/s   00:00
~$ ssh ip-sw:
Password:
--- JUNOS 20.4R3-S4.2-EVO Linux (none) 4.8.28-WR2.2.1_standard-g5382e48 #1 SMP PREEMPT Wed May 25 15:16:55 PDT 2022 x86_64 x86_64 x86_64 GNU/Linux
eusahues@ip-sw> file list eusahues.txt
/var/home/RW-User/eusahues.txt

Thank you!

remote linux# touch t.txt
# ls -al t.txt 
-rw-r--r-- 1 root root 3 Feb 15 17:15 t.txt
# echo "Hello world" > t.txt
# scp t.txt admin@ip-sw:/var/tmp/
Password: 
t.txt                                                                                                                                                                                                     100%   12     0.0KB/s   00:00    

Solved!

~$touch eusahues.txt
~$scp eusahues.txt ip-sw:
Password:
eusahues.txt                                                         100%    0     0.0KB/s   00:00
~$ ssh ip-sw:
Password:
--- JUNOS 20.4R3-S4.2-EVO Linux (none) 4.8.28-WR2.2.1_standard-g5382e48 #1 SMP PREEMPT Wed May 25 15:16:55 PDT 2022 x86_64 x86_64 x86_64 GNU/Linux
eusahues@ip-sw> file list eusahues.txt
/var/home/RW-User/eusahues.txt