Linux 서버에 SFTP 연결이 되지 않을 때

에러메세지 (Aptana Studio 3)

establishing sftp connection failed: no suitable key exchange algorithm could be agreed.

해결방법

1. sshd_config를 찾아서 파일을 열어본다.
   # vi /etc/ssh/sshd_config
   
2. 다음을 적절한곳에 추가한다.
   Ciphers aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,blowfish-cbc,aes128-cbc,3des-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc
   KexAlgorithms=curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
   
3. SSH Restart
   services ssh restart

참조 : https://m.blog.naver.com/PostView.nhn?blogId=na1se&logNo=220479199429