Tomcat7 is listening port but not processes requests
Core problem was that tomcat listens to ipv6 tcp port. I tried to get to my page via ipv4 adress. So i created setenv.sh in /usr/share/tomcat7/bin with single line
JAVA_OPTS="$JAVA_OPTS -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Addresses=true"
and restarted tomcat via
sudo bash tomcat7 restart
in /etc/init.d Then checked my port again with
netstat -na | grep -e 8080
and saw, that ipv4 is using now
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
And after few minutes i could get to my index.html
Thanx @Idaho06 for
netstat -na | grep -e 8080
I would never found problem without it
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Asprelis
Updated on September 18, 2022Comments
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Asprelis over 1 year
Im trying to run my web server in VPS based on ubuntu 14.04. As i tried before on other systems i can check if my tomcat is fine, by going to _http://myIp:8080 and see "It works" index page, but not this time. And honestly im going crazy because i cant figure whats wrong.
I installed tomcat just with commandapt-get install tomcat7
All was fine. I checked that port
8080
is open and went to_http://myIp:8080
- and nothing happens. I can't see 404 (that would mean that tomcat managed request) and I cant see "connection failed" (that would mean, that port is closed or thmthng). Connection is just hangs.I tried to change tomcat port to 1666 (of course, i turned off ufw firewall) Reloaded server, and ROOT deployment was fine again. But i still cant get anything from my server (answer or error) _http://myIp:1666
Here is catalina start log.
And there is nothing except deployment logs.
I have reinstalled tomcat couple of times, but still no result.
UPD
i killed my old VPS and created new one. installed tomcat 7 via apt-get again so he is listening to 8080. and here is my grep resultnetstat -na | grep -e 1666 -e 8080 tcp6 0 0 :::8080 :::* LISTEN
OMG doez it means that tomcat binds to ipV6 and i trying to get my page via ipV4?
UPD2
I created senenv.sh for tomcat withJAVA_OPTS="$JAVA_OPTS -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Addresses=true"
and now my tomcat listening to ipv4 tcp. But still no result. When i trying to connect myIP:8080 there is nothing happens/-na | grep -e 1666 -e 8080 tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
UPD3
IT F***g works.
I missed why, i just spend 10 more minutes in internet after restarting tomcat, trying to find something to solve my problem. And then i tried to get myIP:8080 again - and i saw "It works" index page.-
Asprelis over 9 yearsupdated my question. I checked with ping.eu - this is good site for such sings
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Lokomotywa about 8 yearsi think it must be
setenv.sh
, not setenc.sh -
Asprelis about 8 years@ Ferenjito Thanx! Fixed.
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Madhusoodan P almost 4 years@Asprelis can you please share why binding to ipv6 can be a problem? In my case a TCP connection is setup but server doesn't respond back. I would like to dig deeper.