Eu estou tentando entrar no meu servidor com chaves ssh (eu uso massa para fazer isso), mas toda vez que eu tento conectar ele diz Network error: Connection refused
. Eu acredito que é algo errado com a chave pública, não tenho certeza. A chave é assim:
rsa-key-public AAAAB3NzaC1yc2EAAAABJQAAAQEAx+KoPhVxfBrnN8cFb+hG9MveY0cfNpn9mAcN
hsfkEvxeG2EqLRYtaXUBXPgl3uILvXYbqG7HSBq/kZe/AICn/aK89rCGAozEepde
aYmy9EtmfPU8pFgTrgMils8X6b5kPPxCBZ2pfeL/q4SUke+/xpV1x98py6PHM8Vm
JaBciqvaa89QLvWf3IUuxm7798WvGUPlSMtuE2wnYsyJ4W65nBCs4PCROpaPmcmq
iP0VF+Vm5vC3W/F00PC1w3R3BMdDoS2VJj7jQTR1Ralbn9cM185/pZY8lvkX4lEQ
MJvvwRM1Oy/g+J7+RbPR/XTrrRmKQq5mnWU0ICV5qvTnsc+Lyw==
mas tudo em uma linha. Eu usei puttygen para criar a chave e ficou assim por deafult:
---- BEGIN SSH2 PUBLIC KEY ----
Comment: "rsa-key-public"
AAAAB3NzaC1yc2EAAAABJQAAAQEAx+KoPhVxfBrnN8cFb+hG9MveY0cfNpn9mAcN
hsfkEvxeG2EqLRYtaXUBXPgl3uILvXYbqG7HSBq/kZe/AICn/aK89rCGAozEepde
aYmy9EtmfPU8pFgTrgMils8X6b5kPPxCBZ2pfeL/q4SUke+/xpV1x98py6PHM8Vm
JaBciqvaa89QLvWf3IUuxm7798WvGUPlSMtuE2wnYsyJ4W65nBCs4PCROpaPmcmq
iP0VF+Vm5vC3W/F00PC1w3R3BMdDoS2VJj7jQTR1Ralbn9cM185/pZY8lvkX4lEQ
MJvvwRM1Oy/g+J7+RbPR/XTrrRmKQq5mnWU0ICV5qvTnsc+Lyw==
---- END SSH2 PUBLIC KEY ----
Saída de cat /etc/ssh/sshd_config
:
# Package generated configuration file
# See the sshd_config(5) manpage for details
# What ports, IPs and protocols we listen for
#Port 2222
# Use these options to restrict which interfaces/protocols sshd will bind to
ListenAddress 192.168.1.20
Protocol 2
# HostKeys for protocol version 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
#Privilege Separation is turned on for security
UsePrivilegeSeparation yes
# Lifetime and size of ephemeral version 1 server key
KeyRegenerationinterval 3600
ServerKeyBits 2048
# Logging
SyslogFacility AUTH
LogLevel INFO
# Authentication:
LoginGraceTime 120
PermitRootLogin prohibit-password
StrictModes yes
RSAAuthentication yes
PubkeyAuthentication yes
AuthorizedKeysFile ~/.ssh/authorized_keys
# Don't read the user's ~/.rhosts and ~/.shosts files
IgnoreRhosts yes
# For this to work you will also need host keys in /etc/ssh_known_hosts
RhostsRSAAuthentication no
# similar for protocol version 2
HostbasedAuthentication no
# Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication
#IgnoreUserKnownHosts yes
# To enable empty passwords, change to yes (NOT RECOMMENDED)
PermitEmptyPasswords no
# Change to yes to enable challenge-response passwords (beware issues with
# some PAM modules and threads)
ChallengeResponseAuthentication no
# Change to no to disable tunnelled clear text passwords
PasswordAuthentication yes
# Kerberos options
#KerberosAuthentication no
#KerberosGetAFSToken no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
# GSSAPI options
#GSSAPIAuthentication no
#GSSAPICleanupCredentials yes
Xl1Forwarding yes
Xl1DisplayOffset 10
PrintMotd no
PrintLastLog yes
TCPKeepAlive yes
#UseLogin no
#MaxStartups 10:30:60
*Banner /etc/issue.net
# Allow client to pass locale environment variables
AcceptEnv LANG LC *
Subsystem sftp /usr/lib/openssh/sftp-server
# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication. Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of *PermitRootLogin without-password*.
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
UsePAM no
Saída service ssh status
/ systemctl status ssh.service
:
peter@PM-server:-$ service ssh status
● ssh.service - OpenBSD Secure Shell server
Loaded: loaded (/lib/systemd/systemissh.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2017-04-03 16:02:13 CEST; 3h 37min ago
Main PID: 1577 (sshd)
Tasks: 7 (limit: 4915)
Memory: 23.1M
CPU: 3.774s
CGroup: /system.slice/ssh.service
├─1577 /usr/sbin/sshd -D
├─2351 sshd: peter [priv]
├─2359 sshd: peter@pts/0
├─2360 -bash
├─2395 systemctl status ssh.service
└─2400 pager
Apr 03 16:25:11 PM-server sudo[2030] :pam_unix(sudo:session): session opened for user root by peter(uid=0)
Apr 03 16:32:45 PM-server sudo[2030] :pam_unix(sudo:session): session closed for user root
Apr 03 16:50:45 PM-server sshd[2068] : Accepted password for peter from 192.168.1.19 port 57813 ssh2
Apr 03 17:19:14 PM-server sudo[2135] peter : TTY=pts/0 ; PWD/home ; USER=root ; COMMAND/bin/chown peter:peter peter
Apr 03 17:19:14 PM-server sudo[2135] :pam_unix(sudo:session): session opened for user root by peter(uid=0)
Apr 03 17:19:14 PM-server sudo[2135] :pam_unix(sudo:session): session closed for user root
Apr 03 19:25:09 PM-server sshd[2351] : Accepted password for peter from 192.168.1.19 port 56635 ssh2
Apr 03 19:26:05 PM-server sudo[2372] peter : TTY=pts/0 ; PWD/home/peter ; USER=root ; COMMAND/bin/systemctl
Apr 03 19:26:05 PM-server sudo[2372] :pam_unix(sudo:session): session opened for user root by peter(uid=0)
Apr 03 19:28:14 PM-server sudo[2372] :pam unix(sudo:session): session closed for user root
Aqui está a saída de sudo systemctl
.
Saída de sudo sshd -T
port 22
protocol 2
addressfamily any
listenaddress [::]:22
listenaddress 0.0.0.0:22
usepam yes
serverkeybits 1024
logingracetime 120
keyregenerationinterval 3600
x11displayoffset 10
maxauthtries 6
maxsessions 10
clientaliveinterval 0
clientalivecountmax 3
streamlocalbindmask 0177
permitrootlogin without-password
ignorerhosts yes
ignoreuserknownhosts no
rhostsrsaauthentication no
hostbasedauthentication no
hostbasedusesnamefrompacketonly no
rsaauthentication yes
pubkeyauthentication yes
kerberosauthentication no
kerberosorlocalpasswd yes
kerberosticketcleanup yes
gssapiauthentication no
gssapikeyexchange no
gssapicleanupcredentials yes
gssapistrictacceptorcheck yes
gssapistorecredentialsonrekey no
passwordauthentication yes
kbdinteractiveauthentication no
challengeresponseauthentication no
printmotd no
printlastlog yes
x11forwarding yes
x11uselocalhost yes
permittty yes
permituserrc yes
strictmodes yes
tcpkeepalive yes
permitemptypasswords no
permituserenvironment no
uselogin no
compression delayed
gatewayports no
usedns no
allowtcpforwarding yes
allowagentforwarding yes
allowstreamlocalforwarding yes
streamlocalbindunlink no
useprivilegeseparation yes
fingerprinthash SHA256
pidfile /var/run/sshd.pid
xauthlocation /usr/bin/xauth
ciphers [email protected],aes128-ctr,aes192-ctr,aes256- ctr,[email protected],[email protected]
macs [email protected],[email protected],hmac-sha2-256- [email protected],[email protected],[email protected],umac- [email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
versionaddendum none
kexalgorithms [email protected],ecdh-sha2-nistp256,ecdh-sha2- nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman- group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14- sha256,diffie-hellman-group14-sha1
hostbasedacceptedkeytypes ecdsa-sha2-nistp256-cert- [email protected],[email protected],ecdsa-sha2-nistp521- [email protected],[email protected],ssh-rsa-cert- [email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh- ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
hostkeyalgorithms [email protected],ecdsa-sha2- [email protected],[email protected],ssh- [email protected],[email protected],ecdsa-sha2- nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,rsa-sha2-512,rsa- sha2-256,ssh-rsa
pubkeyacceptedkeytypes [email protected],ecdsa- [email protected],[email protected],ssh- [email protected],[email protected],ecdsa-sha2- nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,rsa-sha2-512,rsa- sha2-256,ssh-rsa
loglevel INFO
syslogfacility AUTH
authorizedkeysfile .ssh/authorized_keys .ssh/authorized_keys2
hostkey /etc/ssh/ssh_host_rsa_key
hostkey /etc/ssh/ssh_host_ecdsa_key
hostkey /etc/ssh/ssh_host_ed25519_key
acceptenv LANG
acceptenv LC_*
authenticationmethods any
subsystem sftp /usr/lib/openssh/sftp-server
maxstartups 10:30:100
permittunnel no
ipqos lowdelay throughput
rekeylimit 0 0
permitopen any