Acontece que foi um problema com um roteador no final de meus provedores. Aparentemente, estava chutando a sub-rede. Todos trabalhando agora! woo ..
Obrigado pela ajuda!
Eu tenho um servidor Ubuntu Linux 16.04.1. 10 minutos após a inicialização, o SSH sobre IPV6 pára de funcionar e não consigo mais me conectar ao SSH usando o endereço IPV6. O IPV4 funciona bem o tempo todo.
Alguém tem alguma sugestão? Eu estou batendo minha cabeça fora da mesa quase .. Feliz para fornecer todos os registros, se necessário ...
Se eu reinicializar o servidor, o IPV6 funcionará bem por 10 minutos.
Saída de / 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 7000
# Use these options to restrict which interfaces/protocols sshd will bind to
#ListenAddress ::
#ListenAddress 0.0.0.0
Protocol 2
# HostKeys for protocol version 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_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 1024
# Logging
SyslogFacility AUTH
LogLevel INFO
# Authentication:
LoginGraceTime 120
PermitRootLogin yes
StrictModes yes
RSAAuthentication yes
PubkeyAuthentication yes
#AuthorizedKeysFile %h/.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
X11Forwarding yes
X11DisplayOffset 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 yes
Saída de ip6tables -L -v -n
Chain INPUT (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
1209 138K LOCALINPUT all !lo * ::/0 ::/0
3 147 ACCEPT all lo * ::/0 ::/0
0 0 INVALID tcp !lo * ::/0 ::/0
6 576 ACCEPT all !lo * ::/0 ::/0 state RELATED,ESTABLISHED
0 0 ACCEPT tcp !lo * ::/0 ::/0 state NEW tcp dpt:25
0 0 ACCEPT tcp !lo * ::/0 ::/0 state NEW tcp dpt:7000
0 0 ACCEPT tcp !lo * ::/0 ::/0 state NEW tcp dpt:8080
0 0 ACCEPT udp !lo * ::/0 ::/0 state NEW udp dpt:25
0 0 ACCEPT udp !lo * ::/0 ::/0 state NEW udp dpt:7000
0 0 ACCEPT udp !lo * ::/0 ::/0 state NEW udp dpt:8080
4 280 ACCEPT icmpv6 !lo * ::/0 ::/0
0 0 LOGDROPIN all !lo * ::/0 ::/0
Chain FORWARD (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
Chain OUTPUT (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
888 132K LOCALOUTPUT all * !lo ::/0 ::/0
0 0 ACCEPT tcp * !lo ::/0 ::/0 tcp dpt:53
0 0 ACCEPT udp * !lo ::/0 ::/0 udp dpt:53
0 0 ACCEPT tcp * !lo ::/0 ::/0 tcp spt:53
0 0 ACCEPT udp * !lo ::/0 ::/0 udp spt:53
3 147 ACCEPT all * lo ::/0 ::/0
0 0 INVALID tcp * !lo ::/0 ::/0
0 0 ACCEPT all * !lo ::/0 ::/0 state RELATED,ESTABLISHED
0 0 ACCEPT tcp * !lo ::/0 ::/0 state NEW tcp dpts:1:65535
6 576 ACCEPT udp * !lo ::/0 ::/0 state NEW udp dpts:1:65535
4 264 ACCEPT icmpv6 * !lo ::/0 ::/0
0 0 LOGDROPOUT all * !lo ::/0 ::/0
Chain ALLOWIN (1 references)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all !lo * X ::/0
0 0 ACCEPT all !lo * X ::/0
0 0 ACCEPT all !lo * X ::/0
0 0 ACCEPT all !lo * X ::/0
0 0 ACCEPT all !lo * X ::/0
0 0 ACCEPT all !lo * X ::/0
0 0 ACCEPT all !lo * X ::/0
0 0 ACCEPT all !lo * X ::/0
0 0 ACCEPT all !lo * X ::/0
1199 137K ACCEPT all !lo * X ::/0
Chain ALLOWOUT (1 references)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all * !lo ::/0 X
0 0 ACCEPT all * !lo ::/0 X
0 0 ACCEPT all * !lo ::/0 X
0 0 ACCEPT all * !lo ::/0 X
0 0 ACCEPT all * !lo ::/0 X
0 0 ACCEPT all * !lo ::/0 X
0 0 ACCEPT all * !lo ::/0 X
0 0 ACCEPT all * !lo ::/0 X
0 0 ACCEPT all * !lo ::/0 X
878 131K ACCEPT all * !lo ::/0 X
Chain DENYIN (1 references)
pkts bytes target prot opt in out source destination
Chain DENYOUT (1 references)
pkts bytes target prot opt in out source destination
Chain INVALID (2 references)
pkts bytes target prot opt in out source destination
0 0 INVDROP all * * ::/0 ::/0 state INVALID
0 0 INVDROP tcp * * ::/0 ::/0 tcp flags:0x3F/0x00
0 0 INVDROP tcp * * ::/0 ::/0 tcp flags:0x3F/0x3F
0 0 INVDROP tcp * * ::/0 ::/0 tcp flags:0x03/0x03
0 0 INVDROP tcp * * ::/0 ::/0 tcp flags:0x06/0x06
0 0 INVDROP tcp * * ::/0 ::/0 tcp flags:0x05/0x05
0 0 INVDROP tcp * * ::/0 ::/0 tcp flags:0x11/0x01
0 0 INVDROP tcp * * ::/0 ::/0 tcp flags:0x18/0x08
0 0 INVDROP tcp * * ::/0 ::/0 tcp flags:0x30/0x20
0 0 INVDROP tcp * * ::/0 ::/0 tcp flags:!0x17/0x02 state NEW
Chain INVDROP (10 references)
pkts bytes target prot opt in out source destination
0 0 DROP all * * ::/0 ::/0
Chain LOCALINPUT (1 references)
pkts bytes target prot opt in out source destination
1209 138K ALLOWIN all !lo * ::/0 ::/0
10 856 DENYIN all !lo * ::/0 ::/0
Chain LOCALOUTPUT (1 references)
pkts bytes target prot opt in out source destination
888 132K ALLOWOUT all * !lo ::/0 ::/0
10 840 DENYOUT all * !lo ::/0 ::/0
Chain LOGDROPIN (1 references)
pkts bytes target prot opt in out source destination
0 0 DROP tcp * * ::/0 ::/0 tcp dpt:67
0 0 DROP udp * * ::/0 ::/0 udp dpt:67
0 0 DROP tcp * * ::/0 ::/0 tcp dpt:68
0 0 DROP udp * * ::/0 ::/0 udp dpt:68
0 0 DROP tcp * * ::/0 ::/0 tcp dpt:111
0 0 DROP udp * * ::/0 ::/0 udp dpt:111
0 0 DROP tcp * * ::/0 ::/0 tcp dpt:113
0 0 DROP udp * * ::/0 ::/0 udp dpt:113
0 0 DROP tcp * * ::/0 ::/0 tcp dpts:135:139
0 0 DROP udp * * ::/0 ::/0 udp dpts:135:139
0 0 DROP tcp * * ::/0 ::/0 tcp dpt:445
0 0 DROP udp * * ::/0 ::/0 udp dpt:445
0 0 DROP tcp * * ::/0 ::/0 tcp dpt:500
0 0 DROP udp * * ::/0 ::/0 udp dpt:500
0 0 DROP tcp * * ::/0 ::/0 tcp dpt:513
0 0 DROP udp * * ::/0 ::/0 udp dpt:513
0 0 DROP tcp * * ::/0 ::/0 tcp dpt:520
0 0 DROP udp * * ::/0 ::/0 udp dpt:520
0 0 LOG tcp * * ::/0 ::/0 limit: avg 30/min burst 5 LOG flags 0 level 4 prefix "Firewall: *TCP6IN Blocked* "
0 0 LOG udp * * ::/0 ::/0 limit: avg 30/min burst 5 LOG flags 0 level 4 prefix "Firewall: *UDP6IN Blocked* "
0 0 LOG icmpv6 * * ::/0 ::/0 limit: avg 30/min burst 5 LOG flags 0 level 4 prefix "Firewall: *ICMP6IN Blocked* "
0 0 DROP all * * ::/0 ::/0
Chain LOGDROPOUT (1 references)
pkts bytes target prot opt in out source destination
0 0 LOG tcp * * ::/0 ::/0 tcp flags:0x17/0x02 limit: avg 30/min burst 5 LOG flags 8 level 4 prefix "Firewall: *TCP6OUT Blocked* "
0 0 LOG udp * * ::/0 ::/0 limit: avg 30/min burst 5 LOG flags 8 level 4 prefix "Firewall: *UDP6OUT Blocked* "
0 0 LOG icmpv6 * * ::/0 ::/0 limit: avg 30/min burst 5 LOG flags 8 level 4 prefix "Firewall: *ICMP6OUT Blocked* "
0 0 REJECT all * * ::/0 ::/0 reject-with icmp6-port-unreachable
Tags networking ubuntu