Solução de problemas de SSH no Ubuntu Server

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Estou tentando configurar a autenticação de chave SSH no servidor Digital Ocean Cloud. Primeiro, adicionei meu rsa_id.pub à minha conta e o carreguei automaticamente no droplet do Ubuntu quando o criei. Parece haver um erro ao acessar a chave rsa pública, mas eu mudei todas as permissões de arquivo no / etc / ssh para 777 (eu sei que é uma má idéia). Alguma idéia?

-verbose log quando o ssh tenta autenticar 

Apr  2 13:42:38 CarreFamilyHomestay-Webserver sshd[976]: Server listening on 0.0.0.0 port 22.
Apr  2 13:42:38 CarreFamilyHomestay-Webserver sshd[976]: Server listening on :: port 22.
Apr  2 13:43:49 CarreFamilyHomestay-Webserver sshd[1193]: error: Could not load host key: /etc/ssh/ssh_host_ed25519_key
Apr  2 13:44:54 CarreFamilyHomestay-Webserver sshd[1193]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.80.65.235  user=root
Apr  2 13:44:56 CarreFamilyHomestay-Webserver sshd[1193]: Failed password for root from 192.80.65.235 port 33463 ssh2
Apr  2 13:44:56 CarreFamilyHomestay-Webserver sshd[1193]: Connection closed by 192.80.65.235 [preauth]
Apr  2 13:46:17 CarreFamilyHomestay-Webserver sshd[1196]: error: Could not load host key: /etc/ssh/ssh_host_ed25519_key
Apr  2 13:58:54 CarreFamilyHomestay-Webserver sshd[951]: Server listening on 0.0.0.0 port 22.
Apr  2 13:58:54 CarreFamilyHomestay-Webserver sshd[951]: Server listening on :: port 22.
Apr  2 14:00:35 CarreFamilyHomestay-Webserver sshd[1118]: error: Could not load host key: /etc/ssh/ssh_host_ed25519_key
Apr  2 14:00:38 CarreFamilyHomestay-Webserver sshd[1118]: pam_unix(sshd:account): expired password for user root (root enforced)
Apr  2 14:00:38 CarreFamilyHomestay-Webserver sshd[1118]: Accepted password for root from 192.80.65.235 port 33274 ssh2
Apr  2 14:00:38 CarreFamilyHomestay-Webserver sshd[1118]: pam_unix(sshd:session): session opened for user root by (uid=0)
Apr  2 14:03:34 CarreFamilyHomestay-Webserver login[1042]: pam_unix(login:auth): check pass; user unknown
Apr  2 14:03:34 CarreFamilyHomestay-Webserver login[1042]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost= 
Apr  2 14:03:37 CarreFamilyHomestay-Webserver login[1042]: FAILED LOGIN (1) on '/dev/tty1' FOR 'UNKNOWN', Authentication failure
Apr  2 14:04:00 CarreFamilyHomestay-Webserver login[1042]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost=  user=root
Apr  2 14:04:03 CarreFamilyHomestay-Webserver login[1042]: FAILED LOGIN (2) on '/dev/tty1' FOR 'root', Authentication failure
Apr  2 14:04:22 CarreFamilyHomestay-Webserver login[1042]: pam_unix(login:auth): check pass; user unknown
Apr  2 14:04:22 CarreFamilyHomestay-Webserver login[1042]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost= 
Apr  2 14:04:37 CarreFamilyHomestay-Webserver login[1168]: pam_unix(login:account): expired password for user root (root enforced)
Apr  2 14:04:44 CarreFamilyHomestay-Webserver login[1168]: pam_unix(login:chauthtok): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost=  user=root
Apr  2 14:04:46 CarreFamilyHomestay-Webserver login[1168]: Authentication token manipulation error
Apr  2 14:04:53 CarreFamilyHomestay-Webserver login[1173]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost=  user=root
Apr  2 14:04:57 CarreFamilyHomestay-Webserver login[1173]: FAILED LOGIN (1) on '/dev/tty1' FOR 'root', Authentication failure
Apr  2 14:05:04 CarreFamilyHomestay-Webserver login[1173]: pam_unix(login:auth): check pass; user unknown
Apr  2 14:05:04 CarreFamilyHomestay-Webserver login[1173]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost= 
Apr  2 14:05:07 CarreFamilyHomestay-Webserver login[1173]: FAILED LOGIN (2) on '/dev/tty1' FOR 'UNKNOWN', Authentication failure
Apr  2 14:05:17 CarreFamilyHomestay-Webserver login[1173]: FAILED LOGIN (3) on '/dev/tty1' FOR 'root', Authentication failure
Apr  2 14:05:33 CarreFamilyHomestay-Webserver login[1173]: pam_unix(login:account): expired password for user root (root enforced)
Apr  2 14:05:59 CarreFamilyHomestay-Webserver login[1173]: pam_unix(login:chauthtok): password changed for root
Apr  2 14:05:59 CarreFamilyHomestay-Webserver login[1173]: pam_unix(login:session): session opened for user root by LOGIN(uid=0)
Apr  2 14:05:59 CarreFamilyHomestay-Webserver login[1225]: ROOT LOGIN  on '/dev/tty1'
Apr  2 14:07:10 CarreFamilyHomestay-Webserver sshd[1240]: error: Could not load host key: /etc/ssh/ssh_host_ed25519_key
Apr  2 14:07:17 CarreFamilyHomestay-Webserver sshd[1240]: Accepted password for root from 192.80.65.235 port 35403 ssh2
Apr  2 14:07:17 CarreFamilyHomestay-Webserver sshd[1240]: pam_unix(sshd:session): session opened for user root by (uid=0)
Apr  2 14:07:36 CarreFamilyHomestay-Webserver sudo:     root : TTY=pts/1 ; PWD=/root/.ssh ; USER=root ; COMMAND=/usr/bin/vim authorized_keys
Apr  2 14:07:36 CarreFamilyHomestay-Webserver sudo: pam_unix(sudo:session): session opened for user root by root(uid=0)
Apr  2 14:07:57 CarreFamilyHomestay-Webserver sudo: pam_unix(sudo:session): session closed for user root
Apr  2 14:08:36 CarreFamilyHomestay-Webserver sudo:     root : TTY=pts/1 ; PWD=/etc/ssh ; USER=root ; COMMAND=/usr/bin/apt-get install gedit
Apr  2 14:08:36 CarreFamilyHomestay-Webserver sudo: pam_unix(sudo:session): session opened for user root by root(uid=0)
Apr  2 14:09:08 CarreFamilyHomestay-Webserver sudo: pam_unix(sudo:session): session closed for user root
Apr  2 14:13:34 CarreFamilyHomestay-Webserver sshd[1316]: error: Could not load host key: /etc/ssh/ssh_host_ed25519_key

/var/log/auth.log 

Apr  2 13:42:38 CarreFamilyHomestay-Webserver sshd[976]: Server listening on 0.0.0.0 port 22.
Apr  2 13:42:38 CarreFamilyHomestay-Webserver sshd[976]: Server listening on :: port 22.
Apr  2 13:43:49 CarreFamilyHomestay-Webserver sshd[1193]: error: Could not load host key: /etc/ssh/ssh_host_ed25519_key
Apr  2 13:44:54 CarreFamilyHomestay-Webserver sshd[1193]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.80.65.235  user=root
Apr  2 13:44:56 CarreFamilyHomestay-Webserver sshd[1193]: Failed password for root from 192.80.65.235 port 33463 ssh2
Apr  2 13:44:56 CarreFamilyHomestay-Webserver sshd[1193]: Connection closed by 192.80.65.235 [preauth]
Apr  2 13:46:17 CarreFamilyHomestay-Webserver sshd[1196]: error: Could not load host key: /etc/ssh/ssh_host_ed25519_key
Apr  2 13:58:54 CarreFamilyHomestay-Webserver sshd[951]: Server listening on 0.0.0.0 port 22.
Apr  2 13:58:54 CarreFamilyHomestay-Webserver sshd[951]: Server listening on :: port 22.
Apr  2 14:00:35 CarreFamilyHomestay-Webserver sshd[1118]: error: Could not load host key: /etc/ssh/ssh_host_ed25519_key
Apr  2 14:00:38 CarreFamilyHomestay-Webserver sshd[1118]: pam_unix(sshd:account): expired password for user root (root enforced)
Apr  2 14:00:38 CarreFamilyHomestay-Webserver sshd[1118]: Accepted password for root from 192.80.65.235 port 33274 ssh2
Apr  2 14:00:38 CarreFamilyHomestay-Webserver sshd[1118]: pam_unix(sshd:session): session opened for user root by (uid=0)
Apr  2 14:03:34 CarreFamilyHomestay-Webserver login[1042]: pam_unix(login:auth): check pass; user unknown
Apr  2 14:03:34 CarreFamilyHomestay-Webserver login[1042]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost= 
Apr  2 14:03:37 CarreFamilyHomestay-Webserver login[1042]: FAILED LOGIN (1) on '/dev/tty1' FOR 'UNKNOWN', Authentication failure
Apr  2 14:04:00 CarreFamilyHomestay-Webserver login[1042]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost=  user=root
Apr  2 14:04:03 CarreFamilyHomestay-Webserver login[1042]: FAILED LOGIN (2) on '/dev/tty1' FOR 'root', Authentication failure
Apr  2 14:04:22 CarreFamilyHomestay-Webserver login[1042]: pam_unix(login:auth): check pass; user unknown
Apr  2 14:04:22 CarreFamilyHomestay-Webserver login[1042]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost= 
Apr  2 14:04:37 CarreFamilyHomestay-Webserver login[1168]: pam_unix(login:account): expired password for user root (root enforced)
Apr  2 14:04:44 CarreFamilyHomestay-Webserver login[1168]: pam_unix(login:chauthtok): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost=  user=root
Apr  2 14:04:46 CarreFamilyHomestay-Webserver login[1168]: Authentication token manipulation error
Apr  2 14:04:53 CarreFamilyHomestay-Webserver login[1173]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost=  user=root
Apr  2 14:04:57 CarreFamilyHomestay-Webserver login[1173]: FAILED LOGIN (1) on '/dev/tty1' FOR 'root', Authentication failure
Apr  2 14:05:04 CarreFamilyHomestay-Webserver login[1173]: pam_unix(login:auth): check pass; user unknown
Apr  2 14:05:04 CarreFamilyHomestay-Webserver login[1173]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost= 
Apr  2 14:05:07 CarreFamilyHomestay-Webserver login[1173]: FAILED LOGIN (2) on '/dev/tty1' FOR 'UNKNOWN', Authentication failure
Apr  2 14:05:17 CarreFamilyHomestay-Webserver login[1173]: FAILED LOGIN (3) on '/dev/tty1' FOR 'root', Authentication failure
Apr  2 14:05:33 CarreFamilyHomestay-Webserver login[1173]: pam_unix(login:account): expired password for user root (root enforced)
Apr  2 14:05:59 CarreFamilyHomestay-Webserver login[1173]: pam_unix(login:chauthtok): password changed for root
Apr  2 14:05:59 CarreFamilyHomestay-Webserver login[1173]: pam_unix(login:session): session opened for user root by LOGIN(uid=0)
Apr  2 14:05:59 CarreFamilyHomestay-Webserver login[1225]: ROOT LOGIN  on '/dev/tty1'
Apr  2 14:07:10 CarreFamilyHomestay-Webserver sshd[1240]: error: Could not load host key: /etc/ssh/ssh_host_ed25519_key
Apr  2 14:07:17 CarreFamilyHomestay-Webserver sshd[1240]: Accepted password for root from 192.80.65.235 port 35403 ssh2
Apr  2 14:07:17 CarreFamilyHomestay-Webserver sshd[1240]: pam_unix(sshd:session): session opened for user root by (uid=0)
Apr  2 14:07:36 CarreFamilyHomestay-Webserver sudo:     root : TTY=pts/1 ; PWD=/root/.ssh ; USER=root ; COMMAND=/usr/bin/vim authorized_keys
Apr  2 14:07:36 CarreFamilyHomestay-Webserver sudo: pam_unix(sudo:session): session opened for user root by root(uid=0)
Apr  2 14:07:57 CarreFamilyHomestay-Webserver sudo: pam_unix(sudo:session): session closed for user root
Apr  2 14:08:36 CarreFamilyHomestay-Webserver sudo:     root : TTY=pts/1 ; PWD=/etc/ssh ; USER=root ; COMMAND=/usr/bin/apt-get install gedit
Apr  2 14:08:36 CarreFamilyHomestay-Webserver sudo: pam_unix(sudo:session): session opened for user root by root(uid=0)
Apr  2 14:09:08 CarreFamilyHomestay-Webserver sudo: pam_unix(sudo:session): session closed for user root
Apr  2 14:13:34 CarreFamilyHomestay-Webserver sshd[1316]: error: Could not load host key: /etc/ssh/ssh_host_ed25519_key
    
por SomethingsGottaGive 02.04.2015 / 22:48

1 resposta

1

Comece de novo. Sopre seu arquivo authorized_keys.

  1. ssh-keygen (aceita todos os padrões, não use nenhuma passphrase)
  2. vi .ssh / authorized_keys
  3. Cole o conteúdo do id_rsa.pub do servidor a partir do qual você deseja se conectar.

Além disso, tenha muito cuidado ao alterar as permissões no servidor em nuvem. Minha resposta é genérica para o Linux, veja os detalhes do oceano digital em relação às chaves SSH se eles tiverem algum outro processo. A AWS, por exemplo, tem seu próprio sistema para gerenciar chaves.

    
por 02.04.2015 / 22:53

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