Oracle Linux 5: Fails to ssh Oracle Linux Server 6/7 With Error "no matching mac found"
(Doc ID 2520760.1)
Last updated on MAY 24, 2020
Applies to:Linux OS - Version Oracle Linux 5.10 and later
After disabling of SFTP ciphers and MAC algorithms that do not meet security standards, Oracle Linux 5 cannot access other Oracle Linux 6/7 server anymore with the below error:
OL5_client# sftp email@example.com
Connecting to x.x.x.x...
no matching mac found: client hmac-md5,hmac-sha1,hmac-ripemd160,firstname.lastname@example.org,hmac-sha1-96,hmac-md5-96 server hmac-sha2-512,hmac-sha2-256
Couldn't read packet: Connection reset by peer
The following SFTP ciphers and MAC algorithms were configured on the Oracle Linux 6/7 server.
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document