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157 Posts

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May 13th, 2020 06:00

server_ssh mac and cipher values

Hi,

Who has list of supported values for the ciphers and mac values for "server_ssh" on the VNX's?

Why is it none of the documentation includes these supported values or keywords?

thanks!

Moderator

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7.6K Posts

May 14th, 2020 10:00

Hello downhill2,

Here is the link to EMC VNX Series Security Configuration Guide for VNX and if you look on page 90 it list out the supported TLS cipher. https://dell.to/2zBNrqg

Please let us know if you have any other questions.

2 Intern

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157 Posts

May 15th, 2020 07:00

Hi,

Ok, that helps for the cipher part - sort of. In our attempts to set the cipher for ssh, somebody suggested setting it to "

aes256-ctr", which, if you look at that page in the security doc, isn't even listed. So the command to actually put those potential ciphers into play doesn't even match what the command seems to expect nor accept.

For example, this works: 

server_ssh server_2 -modify -cipher aes256-ctr

But how can we even see that as a valid keyword from the table on p. 91? I mean, it's like fishing blindfolded.

What we have been asked to modify is the -mac and nothing seems to be listed in that doc nor the FTP documentation about available keywords for this command...

server_ssh server_2 -modify -mac ????
Do you know where those can be found? We tried dozens of permutations of cipher and "hmac" values which appear to work on other *nix systems, but not the datamover.
thanks!

Moderator

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7.6K Posts

May 18th, 2020 13:00

Hello downhill2,

I am not able to find any commands through any docs that I have looked through.  You can call into support to as they might have a document that may allow it that I am not able to see.

Please let us know if you have any other questions.

2 Intern

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157 Posts

May 18th, 2020 23:00

Support gave me the list of supported values, so can they be pasted in here? The list seems a bit dated.

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