Unable to run Spring Boot on 80 port

Question

When i change my port from 8080 to 80 i am getting following exception


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 :: Spring Boot ::        (v1.5.6.RELEASE)

2017-08-19 14:07:51.070  INFO 1049 --- [           main] com.example.Start                        : Starting Start on MacBook-Pro.local with PID 1049 (/Users/experimental/Documents/githome/SpringBootStaticWebsiteExample/bin started by experimental in /Users/experimental/Documents/githome/SpringBootStaticWebsiteExample)
2017-08-19 14:07:51.073  INFO 1049 --- [           main] com.example.Start                        : No active profile set, falling back to default profiles: default
2017-08-19 14:07:51.109  INFO 1049 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@71d15f18: startup date [Sat Aug 19 14:07:51 IST 2017]; root of context hierarchy
2017-08-19 14:07:51.830  INFO 1049 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 80 (http)
2017-08-19 14:07:51.839  INFO 1049 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2017-08-19 14:07:51.840  INFO 1049 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.16
2017-08-19 14:07:51.905  INFO 1049 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2017-08-19 14:07:51.905  INFO 1049 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 798 ms
2017-08-19 14:07:51.991  INFO 1049 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'dispatcherServlet' to [/]
2017-08-19 14:07:51.994  INFO 1049 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2017-08-19 14:07:51.995  INFO 1049 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2017-08-19 14:07:51.995  INFO 1049 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2017-08-19 14:07:51.995  INFO 1049 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2017-08-19 14:07:52.186  INFO 1049 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@71d15f18: startup date [Sat Aug 19 14:07:51 IST 2017]; root of context hierarchy
2017-08-19 14:07:52.229  INFO 1049 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2017-08-19 14:07:52.229  INFO 1049 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2017-08-19 14:07:52.245  INFO 1049 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-08-19 14:07:52.246  INFO 1049 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-08-19 14:07:52.266  INFO 1049 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-08-19 14:07:52.278  INFO 1049 --- [           main] oConfiguration$WelcomePageHandlerMapping : Adding welcome page: class path resource [public/index.html]
2017-08-19 14:07:52.348  INFO 1049 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2017-08-19 14:07:52.379 ERROR 1049 --- [           main] o.a.coyote.http11.Http11NioProtocol      : Failed to start end point associated with ProtocolHandler ["http-nio-80"]

java.net.SocketException: Permission denied
	at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_144]
	at sun.nio.ch.Net.bind(Net.java:433) ~[na:1.8.0_144]
	at sun.nio.ch.Net.bind(Net.java:425) ~[na:1.8.0_144]
	at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) ~[na:1.8.0_144]
	at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) ~[na:1.8.0_144]
	at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:210) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:990) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:635) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.connector.Connector.startInternal(Connector.java:1022) [tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.core.StandardService.addConnector(StandardService.java:225) [tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.addPreviouslyRemovedConnectors(TomcatEmbeddedServletContainer.java:250) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletContainer.java:193) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:297) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:145) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546) [spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at com.example.Start.main(Start.java:9) [bin/:na]

2017-08-19 14:07:52.380 ERROR 1049 --- [           main] o.apache.catalina.core.StandardService   : Failed to start connector [Connector[HTTP/1.1-80]]

org.apache.catalina.LifecycleException: Failed to start component [Connector[HTTP/1.1-80]]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.core.StandardService.addConnector(StandardService.java:225) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.addPreviouslyRemovedConnectors(TomcatEmbeddedServletContainer.java:250) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletContainer.java:193) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:297) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:145) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546) [spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
	at com.example.Start.main(Start.java:9) [bin/:na]
Caused by: org.apache.catalina.LifecycleException: service.getName(): "Tomcat";  Protocol handler start failed
	at org.apache.catalina.connector.Connector.startInternal(Connector.java:1029) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	... 13 common frames omitted
Caused by: java.net.SocketException: Permission denied
	at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_144]
	at sun.nio.ch.Net.bind(Net.java:433) ~[na:1.8.0_144]
	at sun.nio.ch.Net.bind(Net.java:425) ~[na:1.8.0_144]
	at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) ~[na:1.8.0_144]
	at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) ~[na:1.8.0_144]
	at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:210) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:990) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:635) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	at org.apache.catalina.connector.Connector.startInternal(Connector.java:1022) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
	... 14 common frames omitted

2017-08-19 14:07:52.387  INFO 1049 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2017-08-19 14:07:52.396  INFO 1049 --- [           main] utoConfigurationReportLoggingInitializer : 

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2017-08-19 14:07:52.399 ERROR 1049 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
APPLICATION FAILED TO START
***************************

Description:

The Tomcat connector configured to listen on port 80 failed to start. The port may already be in use or the connector may be misconfigured.

Action:

Verify the connector's configuration, identify and stop any process that's listening on port 80, or configure this application to listen on another port.

2017-08-19 14:07:52.399  INFO 1049 --- [           main] ationConfigEmbeddedWebApplicationContext : Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@71d15f18: startup date [Sat Aug 19 14:07:51 IST 2017]; root of context hierarchy
2017-08-19 14:07:52.400  INFO 1049 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Unregistering JMX-exposed beans on shutdown

1 Answer

7 years ago by Divya

To run anything under 1024 port you need sudo permission on Unix systems, so you need to start the service with root permissions.

But running the service sudo permissions is not really a good idea as it makes your system more vulnerable to attack. So following are some alternatives to run your service on 8080 and do port forwarding from 80 to 8080.

1. Using IP Tables

Execute the following commands to make iptables allow traffic on 80 and 8080

sudo iptables -I INPUT 1 -p tcp --dport 8080 -j ACCEPT
sudo iptables -I INPUT 1 -p tcp --dport 80 -j ACCEPT

Now execute the following command to forward port 80 traffic to 8080

sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8080

2. Using Nginx

Add the following to nginx.conf

server {
        listen  80;
        location / {
            proxy_set_header    Host $host;
            proxy_set_header    X-Real-IP   $remote_addr;
            proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_pass  http://127.0.0.1:8080;
        }
}

7 years ago by Karthik Divi

Karthik Divi · Accepted Answer

To run anything under 1024 port you need sudo permission on Unix systems, so you need to start the service with root permissions.

But running the service sudo permissions is not really a good idea as it makes your system more vulnerable to attack. So following are some alternatives to run your service on 8080 and do port forwarding from 80 to 8080.

### 1. Using IP Tables
Execute the following commands to make iptables allow traffic on 80 and 8080
```
sudo iptables -I INPUT 1 -p tcp --dport 8080 -j ACCEPT
sudo iptables -I INPUT 1 -p tcp --dport 80 -j ACCEPT
```
Now execute the following command to forward port 80 traffic to 8080
```
sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8080
```
### 2. Using Nginx 
Add the following to nginx.conf
```
server {
        listen  80;
        location / {
            proxy_set_header    Host $host;
            proxy_set_header    X-Real-IP   $remote_addr;
            proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_pass  http://127.0.0.1:8080;
        }
}
```