SFTP / SSH
SSH encryption / PEM keyModern SFTP Explorer for Linux Servers, VPS and Cloud Instances
Overview of SFTP / SSH Integration
Connect to any remote Linux server securely using SFTP. Ultra Explorer advantageously replaces FileZilla and Cyberduck thanks to its Rust speed, its native dual pane and its absence of interface blocking.
In-App Configuration Dialog
Screenshot of the configuration dialog inside Ultra Explorer.
Configuration Fields Breakdown (Required vs Optional)
Based on Ultra Explorer source code and rclone engine: discover which parameters are truly required and which are handled automatically.
Storage Name
Requiredparam: name Default value: Serveur SFTPUnique identifier for this storage remote in Ultra Explorer (e.g. gdrive-perso, backup-s3).
Server Host / IP
Requiredparam: host Required. Remote hostname, domain name, or IP address of the server.
Username
Optionalparam: user Login username or email address for the account or server.
Port
Optionalparam: port Default value: 22Optional. Network communication port for the service.
Password
Optionalparam: pass Password or application password for the account or server.
Private Key PEM (Raw Text)
Optionalparam: key_pem Optional. Full PEM-encoded private key content (RSA/Ed25519) as raw text.
Private Key Passphrase
Optionalparam: key_file_pass Optional. Decryption passphrase if your private key is encrypted.
SSH Public Certificate
Optionalparam: pubkey Optional. SSH public key or certificate if your server enforces certificate-based auth.
Allow Insecure Ciphers
Optionalparam: use_insecure_cipher Default value: falseOptional. Allows negotiation of legacy ciphers and key exchange algorithms on older servers.
Disable Remote Hash Check
Optionalparam: disable_hashcheck Default value: falseOptional. Skips remote md5sum/sha1sum commands to speed up transfers.
Request Concurrency
Optional Advanced Optionparam: concurrency Default value: 64Optional (Advanced). Maximum concurrent in-flight requests to saturate high-latency links.
How to connect SFTP / SSH in Ultra Explorer
Simple 4-step walkthrough to connect your storage in under a minute.
Select SFTP
Choose SFTP from the Protocols category.
Specify host and user
Enter your server IP address and your username.
Choose authentication method
Enter your SSH password OR provide your private key.
Connect and explore
Click 'Connect and verify' to immediately open the server tree.
Frequently Asked Questions about SFTP / SSH
Does it support recent ED25519 keys?
Yes, Ultra Explorer and the rclone engine support modern ED25519 keys as well as RSA in standard OpenSSH format.
What is the difference with FileZilla?
Ultra Explorer is built in Rust, never freezes during large transfers, includes a double pane with tabs and allows you to transfer directly between your SFTP server and your clouds without going through your local disk.
Other integrations in Protocols & NAS
View all 40+ integrations →
Ready to explore your SFTP / SSH?
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