Tôi tin rằng cổng 80 trong trường hợp từ xa của tôi bị chặn và tôi đang cố chạy ứng dụng node.js bằng cổng 80. Tôi đã thử nghiệm với cổng 3000 và 3002 và cả hai cổng đều hoạt động tốt, nhưng tôi gặp lỗi khi chạy trên cổng 80. Tôi nghi ngờ cổng 80 bị chặn khỏi đầu ra netstat -an
bên dưới, nhưng làm cách nào tôi có thể tìm thấy id của các địa chỉ đang chặn cổng 80 bên dưới?
[lucas@ecoinstance]~/node/nodetest1$ netstat -an
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 127.0.0.1:27017 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:3002 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:27017 127.0.0.1:51108 ESTABLISHED
tcp 0 0 127.0.0.1:51106 127.0.0.1:27017 ESTABLISHED
tcp 0 0 127.0.0.1:27017 127.0.0.1:51106 ESTABLISHED
tcp 0 0 127.0.0.1:51107 127.0.0.1:27017 ESTABLISHED
tcp 0 0 10.240.241.116:3002 174.61.171.61:36583 TIME_WAIT
tcp 0 0 127.0.0.1:27017 127.0.0.1:51109 ESTABLISHED
tcp 0 0 10.240.241.116:42423 169.254.169.254:80 ESTABLISHED
tcp 0 0 127.0.0.1:51108 127.0.0.1:27017 ESTABLISHED
tcp 0 532 10.240.241.116:22 174.61.171.61:56824 ESTABLISHED
tcp 0 0 127.0.0.1:27017 127.0.0.1:51107 ESTABLISHED
tcp 0 0 10.240.241.116:42412 169.254.169.254:80 ESTABLISHED
tcp 0 0 127.0.0.1:51109 127.0.0.1:27017 ESTABLISHED
tcp 0 0 127.0.0.1:51105 127.0.0.1:27017 ESTABLISHED
tcp 0 0 10.240.241.116:42422 169.254.169.254:80 TIME_WAIT
tcp 0 0 127.0.0.1:27017 127.0.0.1:51105 ESTABLISHED
tcp6 0 0 :::22 :::* LISTEN
udp 0 0 0.0.0.0:49948 0.0.0.0:*
udp 0 0 0.0.0.0:68 0.0.0.0:*
udp 0 0 10.240.241.116:123 0.0.0.0:*
udp 0 0 127.0.0.1:123 0.0.0.0:*
udp 0 0 0.0.0.0:123 0.0.0.0:*
udp6 0 0 :::12151 :::*
udp6 0 0 :::123 :::*
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags Type State I-Node Path
unix 2 [ ACC ] STREAM LISTENING 405680 /tmp/ssh-KdkxJfFLpKTC/agent.22
813
unix 2 [ ACC ] STREAM LISTENING 408230 /tmp/ssh-ofUeNNEwAqtP/agent.22
243
unix 2 [ ACC ] STREAM LISTENING 416227 /tmp/mongodb-27017.sock
unix 2 [ ACC ] SEQPACKET LISTENING 3692 /run/udev/control
unix 7 [ ] DGRAM 5286 /dev/log
unix 2 [ ACC ] STREAM LISTENING 5318 /var/run/acpid.socket
unix 2 [ ACC ] STREAM LISTENING 16170 /tmp//tmux-1000/default
unix 2 [ ACC ] STREAM LISTENING 414450 /var/run/dbus/system_bus_socke
Và đây là nhật ký khi cố gắng chạy trên cổng 80 với node.js:
[lucas@ecoinstance]~/node/nodetest1$ npm start
> nodetest1@0.0.1 start /home/lucas/node/nodetest1
> node ./bin/www
events.js:72
throw er; // Unhandled 'error' event
^
Error: listen EACCES
at errnoException (net.js:904:11)
at Server._listen2 (net.js:1023:19)
at listen (net.js:1064:10)
at Server.listen (net.js:1138:5)
at Function.app.listen (/home/lucas/node/nodetest1/node_modules/express/lib/applicati
on.js:532:24)
at Object.<anonymous> (/home/lucas/node/nodetest1/bin/www:7:18)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
npm ERR! nodetest1@0.0.1 start: `node ./bin/www`
npm ERR! Exit status 8
npm ERR!
npm ERR! Failed at the nodetest1@0.0.1 start script.
npm ERR! This is most likely a problem with the nodetest1 package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node ./bin/www
npm ERR! You can get their info via:
npm ERR! npm owner ls nodetest1
npm ERR! There is likely additional logging output above.
npm ERR! System Linux 3.13-0.bpo.1-amd64
npm ERR! command "/usr/local/bin/node" "/usr/local/bin/npm" "start"
npm ERR! cwd /home/lucas/node/nodetest1
npm ERR! node -v v0.10.28
npm ERR! npm -v 1.4.9
npm ERR! code ELIFECYCLE
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR! /home/lucas/node/nodetest1/npm-debug.log
npm ERR! not ok code 0
Và sudo netstat -lnp
không trả lại bất kỳ cổng 80 nào phù hợp:
[lucas@ecoinstance]~/node/nodetest1$ sudo netstat -lnp [48/648]
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Progr
am name
tcp 0 0 127.0.0.1:27017 0.0.0.0:* LISTEN 29160/mon
god
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1976/sshd
tcp6 0 0 :::22 :::* LISTEN 1976/sshd
udp 0 0 0.0.0.0:49948 0.0.0.0:* 1604/dhcl
ient
udp 0 0 0.0.0.0:68 0.0.0.0:* 1604/dhcl
ient
udp 0 0 10.240.241.116:123 0.0.0.0:* 2076/ntpd
udp 0 0 127.0.0.1:123 0.0.0.0:* 2076/ntpd
udp 0 0 0.0.0.0:123 0.0.0.0:* 2076/ntpd
udp6 0 0 :::12151 :::* 1604/dhcl
ient
udp6 0 0 :::123 :::* 2076/ntpd
Active UNIX domain sockets (only servers)
Proto RefCnt Flags Type State I-Node PID/Program name Path
unix 2 [ ACC ] STREAM LISTENING 405680 22814/ssh-agent /tmp/ssh-K
dkxJfFLpKTC/agent.22813
unix 2 [ ACC ] STREAM LISTENING 408230 24049/ssh-agent /tmp/ssh-o
fUeNNEwAqtP/agent.22243
unix 2 [ ACC ] STREAM LISTENING 416227 29160/mongod /tmp/mongo
db-27017.sock
unix 2 [ ACC ] SEQPACKET LISTENING 3692 284/udevd /run/udev/
control
unix 2 [ ACC ] STREAM LISTENING 5318 1798/acpid /var/run/a
cpid.socket
unix 2 [ ACC ] STREAM LISTENING 16170 5177/tmux /tmp//tmux
-1000/default
unix 2 [ ACC ] STREAM LISTENING 414450 28213/dbus-daemon /var/run/d
bus/system_bus_socket
unix 2 [ ACC ] STREAM LISTENING 404225 22324/1 /tmp/ssh-9
TlDmu4bjl/agent.22324
bind
trang web:EACCES The address is protected, and the user is not the superuser.
Và bạn thấyEACCES
trong báo cáo lỗi của bạn.