Gateway not working after upgrading to Tectia SFTP client > v6.4.17

Products

• CA API Gateway

Issue/Introduction

Customer reports that various of their external customers are complaining that sftp fails to connect after upgrading Tectia SFTP client to a version newer than 6.4.17. 

Clients are all connecting using preshared keys (ie. IETF Standard SSHv2 format on client side, PEM format on gateway).

 

 

Environment

Release : 10.0

Component : API GATEWAY

Resolution

1. Please use sshd.max-auth-requests connector level property (Advanced property in SSH Port) to make this configurable.

2. Used "sshd.max-auth-requests = 20" on the listen port advanced properties page

3. Tested and check the number of allowed attempts increased from 4 to 20 as shown in this log exerpt:

 

Before:

 

Authenticating user <UserName> with service '<ServiceName>' and method '<MethodName>' (attempt 3 / 3)

 

After:

 

 Authenticating user <UserName>' with service '<ServiceName>' and method '<MethodName>' (attempt 4 / 20)