Looking for logging into the Synology Ds412+ Telnet site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Synology Ds412+ Telnet site. After that you can login as usual with your login credentials.
https://www.synology.com/de-de/knowledgebase/DSM/tutorial/General_Setup/How_to_login_to_DSM_with_root_permission_via_SSH_Telnet
https://www.synology.com/de-de/knowledgebase/DSM/tutorial/Management/What_is_the_username_and_default_password_for_accessing_my_Synology_Product_via_Telnet_SSH
https://wrgms.com/synologys-secret-telnet-password/
https://asciich.ch/wordpress/synology-diskstation-ssh-login-fur-benutzer-erlauben/
https://primalcortex.wordpress.com/2012/08/25/synology-dsm-root-password-for-ssh/
https://stackoverflow.com/questions/35694525/how-can-i-work-with-command-line-on-synology
https://superuser.com/questions/1057853/synology-dsm-cant-log-as-root-but-works-with-admin
https://www.symcon.de/forum/threads/22237-Synology-per-Script-runter-fahren
https://synoguide.com/2014/07/30/reset-admin-password-synology/
https://www.modius-techblog.de/category/netzwerk-co/
https://community.spiceworks.com/topic/635383-veeam-synology-connect-issue
https://www.synology-forum.nl/index.php?topic=5189.0
https://www.bhphotovideo.com/c/product/857278-REG/Synology_DS412_DiskStation_DS412_4_Bay_All_In_1.html