在一次重启后，我发现nps无法访问，查看端口占用发现ipv4的端口空着但是nps并未使用，反而使用ipv6的端口监听
而我的服务器又没有ipv6地址，导致只能内网访问，求教！感谢！
端口查询结果

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:8000            0.0.0.0:*               LISTEN      1470/nginx: master
tcp        0      0 0.0.0.0:993             0.0.0.0:*               LISTEN      1139/dovecot
tcp        0      0 0.0.0.0:7010            0.0.0.0:*               LISTEN      1470/nginx: master
tcp        0      0 0.0.0.0:1443            0.0.0.0:*               LISTEN      27542/nginx: master
tcp        0      0 0.0.0.0:995             0.0.0.0:*               LISTEN      1139/dovecot
tcp        0      0 127.0.0.1:10024         0.0.0.0:*               LISTEN      1933/amavisd (maste
tcp        0      0 0.0.0.0:27017           0.0.0.0:*               LISTEN      4245/docker-proxy
tcp        0      0 0.0.0.0:8777            0.0.0.0:*               LISTEN      1470/nginx: master
tcp        0      0 127.0.0.1:10025         0.0.0.0:*               LISTEN      1359/master
tcp        0      0 0.0.0.0:3306            0.0.0.0:*               LISTEN      2186/mysqld
tcp        0      0 0.0.0.0:8010            0.0.0.0:*               LISTEN      1470/nginx: master
tcp        0      0 0.0.0.0:587             0.0.0.0:*               LISTEN      1359/master
tcp        0      0 127.0.0.1:9005          0.0.0.0:*               LISTEN      1098/php-fpm: maste
tcp        0      0 0.0.0.0:110             0.0.0.0:*               LISTEN      1139/dovecot
tcp        0      0 127.0.0.1:783           0.0.0.0:*               LISTEN      1312/spamd.pid -d -
tcp        0      0 0.0.0.0:143             0.0.0.0:*               LISTEN      1139/dovecot
tcp        0      0 0.0.0.0:465             0.0.0.0:*               LISTEN      1359/master
tcp        0      0 0.0.0.0:180             0.0.0.0:*               LISTEN      27542/nginx: master
tcp        0      0 0.0.0.0:8020            0.0.0.0:*               LISTEN      1470/nginx: master
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1433/sshd
tcp        0      0 0.0.0.0:3000            0.0.0.0:*               LISTEN      4441/docker-proxy
tcp        0      0 0.0.0.0:7000            0.0.0.0:*               LISTEN      1470/nginx: master
tcp        0      0 0.0.0.0:25              0.0.0.0:*               LISTEN      1359/master
tcp        0      0 0.0.0.0:4190            0.0.0.0:*               LISTEN      1139/dovecot
tcp6       0      0 :::1443                 :::*                    LISTEN      27542/nginx: master
tcp6       0      0 :::10280                :::*                    LISTEN      23823/nps
tcp6       0      0 :::27017                :::*                    LISTEN      4250/docker-proxy
tcp6       0      0 :::10222                :::*                    LISTEN      23823/nps
tcp6       0      0 ::1:783                 :::*                    LISTEN      1312/spamd.pid -d -
tcp6       0      0 :::80                   :::*                    LISTEN      23823/nps
tcp6       0      0 :::8080                 :::*                    LISTEN      23823/nps
tcp6       0      0 :::180                  :::*                    LISTEN      27542/nginx: master
tcp6       0      0 :::22                   :::*                    LISTEN      1433/sshd
tcp6       0      0 :::8024                 :::*                    LISTEN      23823/nps
tcp6       0      0 :::3000                 :::*                    LISTEN      4446/docker-proxy
tcp6       0      0 :::443                  :::*                    LISTEN      23823/nps
udp        0      0 0.0.0.0:68              0.0.0.0:*                           1030/dhclient
udp        0      0 10.0.12.2:123           0.0.0.0:*                           675/ntpd
udp        0      0 127.0.0.1:123           0.0.0.0:*                           675/ntpd

nps配置文件

appname = nps
#Boot mode(dev|pro)
runmode = dev

#HTTP(S) proxy port, no startup if empty
http_proxy_ip=127.0.0.1:8080
http_proxy_port=80
https_proxy_port=443
https_just_proxy=true
#default https certificate setting
https_default_cert_file=conf/server.pem
https_default_key_file=conf/server.key

##bridge
bridge_type=tcp
bridge_port=8024
bridge_ip=0.0.0.0

# Public password, which clients can use to connect to the server
# After the connection, the server will be able to open relevant ports and parse related domain names according to its own configuration file.
public_vkey=123

#Traffic data persistence interval(minute)
#Ignorance means no persistence
#flow_store_interval=1

# log level LevelEmergency->0  LevelAlert->1 LevelCritical->2 LevelError->3 LevelWarning->4 LevelNotice->5 LevelInformational->6 LevelDebug->7
log_level=7
#log_path=nps.log

#Whether to restrict IP access, true or false or ignore
#ip_limit=true

#p2p
#p2p_ip=127.0.0.1
#p2p_port=6000

#web
web_host=a.o.com
web_username=admin
web_password=zxcvbnm?2
web_port = 8080
web_ip=0.0.0.0
web_base_url=
web_open_ssl=false
web_cert_file=conf/server.pem
web_key_file=conf/server.key
# if web under proxy use sub path. like http://host/nps need this.
#web_base_url=/nps

#Web API unauthenticated IP address(the len of auth_crypt_key must be 16)
#Remove comments if needed
#auth_key=test
auth_crypt_key =1234567812345678

#allow_ports=9001-9009,10001,11000-12000

#Web management multi-user login
allow_user_login=true
allow_user_register=true
allow_user_change_username=true

#extension
allow_flow_limit=false
allow_rate_limit=false
allow_tunnel_num_limit=false
allow_local_proxy=false
allow_connection_num_limit=false
allow_multi_ip=false
system_info_display=false

#cache
http_cache=false
http_cache_length=100

#get origin ip
http_add_origin_header=false

#pprof debug options
#pprof_ip=0.0.0.0
#pprof_port=9999

#client disconnect timeout
disconnect_timeout=60