nginx服务器远程无法访问,nginx首次安装远程无法访问
因為是問題、花時間、所以進行記錄一番
(一)安裝環境：虛擬機centos7系統
對于nginx在linux下的安裝卸載是裝了又卸，卸了又裝。遠程訪問就是訪問不了，周五的時候能訪問，到后面又不能訪問了。其實這里可以有些方法的。
(二)驗證nginx是否安裝成功
首先根據這篇文章進行安裝，使用源的方式安裝：
(三)本地機器測試nginx是否能正常啟動
所謂的本地機器，就是你安裝了nginx軟件的那一臺機器，輸入命令：
curl http://192.168.241.129/
這里的ip地址為你本機的ip地址
然后會有結果：
[root@localhost nginx-1.12.1]# curl http://192.168.241.129/
Welcome to nginx!body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
Welcome to nginx!
If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.
For online documentation and support please refer to
nginx.org.
Commercial support is available at
nginx.com.
Thank you for using nginx.
[root@localhost nginx-1.12.1]#
以上驗證了本地是已經安裝成功的了，
但是我們遠程訪問的時候就是訪問不了，一直說拒絕訪問，那就是可能真的跟端口，防火墻有關了。
(四)防火墻、端口開啟設置
打開80端口：
(1)
vi /etc/sysconfig/iptables
(2)
-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
如圖：
image.png
image.png
(五)遠程訪問：
image.png
(六)以下是整個成功安裝的過程：
[root@localhost nginx-1.12.1]# ip addr
1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: ens33: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:0c:29:ac:77:31 brd ff:ff:ff:ff:ff:ff
inet 192.168.241.129/24 brd 192.168.241.255 scope global dynamic ens33
valid_lft 1732sec preferred_lft 1732sec
inet6 fe80::5afb:ed05:b1f5:5d3a/64 scope link
valid_lft forever preferred_lft forever
[root@localhost nginx-1.12.1]# systemctl start firewalld.servic
Failed to start firewalld.servic.service: Unit not found.
[root@localhost nginx-1.12.1]# curl http://192.168.241.129/
Welcome to nginx!body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
Welcome to nginx!
If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.
For online documentation and support please refer to
nginx.org.
Commercial support is available at
nginx.com.
Thank you for using nginx.
[root@localhost nginx-1.12.1]# vi /etc/sysconfig/iptables
[root@localhost nginx-1.12.1]# cd /etc/sysconfig/iptables
bash: cd: /etc/sysconfig/iptables: No such file or directory
[root@localhost nginx-1.12.1]# netstat -anop | grep 80
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 2226/nginx: master off (0.00/0/0)
unix 2 [ ACC ] STREAM LISTENING 13780 1/systemd /run/lvm/lvmpolld.socket
unix 3 [ ] STREAM CONNECTED 14680 496/systemd-journal /run/systemd/journal/stdout
unix 2 [ ] DGRAM 104613 48094/su
unix 3 [ ] STREAM CONNECTED 20180 1278/master
unix 2 [ ] DGRAM 19137 1280/qmgr
[root@localhost nginx-1.12.1]# netstat -anop | grep 80
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 2226/nginx: master off (0.00/0/0)
unix 2 [ ACC ] STREAM LISTENING 13780 1/systemd /run/lvm/lvmpolld.socket
unix 3 [ ] STREAM CONNECTED 14680 496/systemd-journal /run/systemd/journal/stdout
unix 2 [ ] DGRAM 104613 48094/su
unix 3 [ ] STREAM CONNECTED 20180 1278/master
unix 2 [ ] DGRAM 19137 1280/qmgr
[root@localhost nginx-1.12.1]# curl http://192.168.241.129/
Welcome to nginx!body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
Welcome to nginx!
If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.
For online documentation and support please refer to
nginx.org.
Commercial support is available at
nginx.com.
Thank you for using nginx.
[root@localhost nginx-1.12.1]# sudo yum install iptables-services
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirror.lzu.edu.cn
* extras: mirrors.cn99.com
* updates: mirrors.cn99.com
Resolving Dependencies
--> Running transaction check
---> Package iptables-services.x86_64 0:1.4.21-24.1.el7_5 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================================================
Package Arch Version Repository Size
================================================================================================================
Installing:
iptables-services x86_64 1.4.21-24.1.el7_5 updates 51 k
Transaction Summary
================================================================================================================
Install 1 Package
Total download size: 51 k
Installed size: 25 k
Is this ok [y/d/N]: y
Downloading packages:
iptables-services-1.4.21-24.1.el7_5.x86_64.rpm | 51 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : iptables-services-1.4.21-24.1.el7_5.x86_64 1/1
Verifying : iptables-services-1.4.21-24.1.el7_5.x86_64 1/1
Installed:
iptables-services.x86_64 0:1.4.21-24.1.el7_5
Complete!
[root@localhost nginx-1.12.1]# vi /etc/sysconfig/iptables
[root@localhost nginx-1.12.1]# systemctl stop firewalld
[root@localhost nginx-1.12.1]# systemctl stop iptalbes
Failed to stop iptalbes.service: Unit iptalbes.service not loaded.
[root@localhost nginx-1.12.1]# vi /etc/selinux/config
[root@localhost nginx-1.12.1]# curl http://192.168.241.129/
Welcome to nginx!body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
Welcome to nginx!
If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.
For online documentation and support please refer to
nginx.org.
Commercial support is available at
nginx.com.
Thank you for using nginx.
[root@localhost nginx-1.12.1]#
總結
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