Key problem with ssh to Linux

B

bangmyhead

Hello, I am trying to connect to an old Redhat Linux and I can not for the next reason:

Code: 
Unable to negotiate with 1.1.1.1 port 22: no matching key exchange method found. Their offer: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
 
bangmyhead said:
Hello, I am trying to connect to an old Redhat Linux and I can not for the next reason:

Unable to negotiate with 1.1.1.1 port 22: no matching key exchange method found. Their offer: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
Click to expand...
happened to me with some cisco routers, just use
ssh -oKexAlgorithms=+diffie-hellman-group1-sha1 <server>
 
SirDice said:
wolffnx said:
happened to me with some cisco routers, just use
ssh -oKexAlgorithms=+diffie-hellman-group1-sha1 <server>
Click to expand...

Doesn't support newer keys. And those old SHA1 keys have been disabled because they're insecure.
Click to expand...
Hello, I tried but I get this:

Code: 
Unable to negotiate with 1.1.1.1 port 22: no matching cipher found. Their offer: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se
 
ssh -Q cipher would tell you what yours side supports, find matching one in "their offer" output and add it to your command in similar fashion like the key exchange one. The option is -oCiphers
 
You must log in or register to reply here.
Back
Top