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TEctia® SSH Server for z/OS

Secure your mainframe data-in-transit without compromising efficiency

Tectia SSH Server for z/OS is the most trusted mainframe secure file transfer (SFTP) software in the industry, combining enterprise-grade reliability with high performance and a light toll on cryptographic processing.


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Strong encryption algorithms ensure strong security posture.


Easy to install. No need to be a mainframe guru to set up the solution.


Eliminate manual steps when migrating to secure mainframe file transfers.

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Why secure mainframe data-in-transit?

Mainframes are true bastions of security. But is your data safe when it is in transit?

  1. Mainframes still are an integral component of IT infrastructure, holding up to 80% of critical business data
  2. Despite their robustness, mainframes are only as secure as the data transfers between them and other hosts in the architecture. FTP is still quite common but unsecure protocol in these environments.
  3. Data-in-transit faces the risk of being exposed increasing the risk of breaches, rising Total Cost of Ownership (TCO), potential outages and compliance issues
  4. Without dedicated solutions, secure file transfers are not only difficult to setup, but also inefficient using costly CPU cycles increasing the operating and administration costs, complexity, time delays and potential errors

How does Tectia help you with mainframe security?


Seamless transition to secure data transfers

Safeguard your data with the latest encryption algorithms and enable transition from File Transfer Protocol (FTP) to SSH File Transfer Protocol (SFTP). The set up is easy without Job Control Language (JCL) modifications, breaking your existing file transfers or requiring manual changes to scripts.


Eliminate manual steps

With Tectia z/OS, you get direct access to MVS datasets. This is convenient, since there is no need to stage your files to Hierarchical File System (HFS) – an extra step in the process that increases the risk of manual error and requires expertise.


Stay compliant

A great number of regulations require that your critical data transfers are protected, such as PCI-DSS, SOX, HIPAA, FISMA, FIPS. Learn more about regulations here


Ensure business continuity

We want to make sure that you can enjoy uninterrupted operations. That is why our 24/7 support is just one phone call away for your team. We also provide professional services for large-scale setups.


Encryption beyond the norm

We have a proven, 25-year track record as pioneers and innovators in encryption. SSH.COM is a leading player in post quantum cryptography (PQC): we develop it together with other leading companies and authorities in Finland.


Who is Tectia SSH Server for z/OS for?

Organizations that get the most benefit out of Tectia generally include those that:

  • Need to comply with regulations, such as PCI-DSS or FIPS, like US Federal agencies, large financial institutions, credit card companies, retailers, insurance companies, etc.
  • Require massive file transfers 
  • Want mainframe security to mitigate risk from unauthorized use
  • Need seamless transition from FTP to SFTP

Tectia is trusted by some of the world's leading enterprises.

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Main features

Ease of use

  • ISPF application for installation and configuration
  • Configurable FTP fallback option for controlled and phased deployment
  • System-wide and user-specific file transfer profiles
  • Listing of MVS data sets as files and folders for easy interactive command line

User and server authentication

  • Authentication and access control through SAF calls to RACF, ACF2, and TSS
  • ser authentication with passwords
  • User and server authentication with X.509 certificates
  • User and server authentication with public keys
  • Logging and auditing using SMF records and Syslogd facilities

Secure File Transfer Protocol

  • Transparent, automatic FTP-SFTP conversion
  • Transparent FTP tunneling
  • Multi-terabyte file size support
  • Strong encryption of data
  • Strong packet-by-packet file integrity checking
  • SFTP and SCP command-line tools for interactive and unattended use
  • Logging and auditing using SMF records and Syslogd facilities
  • SFTP Extensions for SITE command support
  • Embedded file transfer advice strings in file names for third-party clients
  • Support for MVS and USS file systems
  • Automatic EBCDIC-ASCII character conversion
  • Interactive MVS data set listing capability
  • Interfacing z/OS Job Entry Subsystem (JES)


  • Automatic transparent encryption of data-in-transit, including user ID and password
  • Hardware acceleration of cryptographic operations
  • Support for U.S. NIST FIPS 140-2 Certified hardware acceleration
  • Configurable re-keying policies
  • Multi-channel support - multiple secure sessions are multiplexed to a single TCP/IP
  • connection
  • Compliance with the IETF Secure Shell standards

Try Tectia SSH Server for z/OS for free!

Download the trial to get started on your Tectia journey. Try it for free for 60 days!

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