InetAddress.getLocalHost() throws unknownHostException in linux until I manually add entry in /etc/hosts. Is there any way to get InetAddress object without add an entry in /etc/host file.. Note : The IP is static
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velocityreviews.com/forums/t133268-getlocalhost.html Looks like the Java libs are trying to get an externally-applicable name for the machine, and then look up that name. Seems silly to me, as a machine may have none or millions of correct externally-applicable names, and IP addresses come and go... Why do you want to use this routine? Perhaps there's a better choice of API for your problem.sarnold– sarnold2010-07-19 10:29:26 +00:00Commented Jul 19, 2010 at 10:29
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@sarnold. What is the better choice of API for this probelm?suresh– suresh2010-07-27 10:00:26 +00:00Commented Jul 27, 2010 at 10:00
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2 Answers
String host = null;
NetworkInterface iface = null;
for(Enumeration<NetworkInterface> ifaces = NetworkInterface.getNetworkInterfaces();ifaces.hasMoreElements();){
iface = (NetworkInterface)ifaces.nextElement();
InetAddress ia = null;
for(Enumeration<InetAddress> ips = iface.getInetAddresses();ips.hasMoreElements();){
ia = (InetAddress)ips.nextElement();
if(!ia.isLoopbackAddress() && (!ia.isLinkLocalAddress()) && (ia instanceof Inet4Address)) host=ia.getHostAddress();
}
}
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I am wondering the same thing. In this post, I have a machine where I did NOT add an entry into /etc/hosts...
java getLocalHost() UnknownHostException /etc/hosts file differs linux api?
but I think that machine is maybe configured differently, but not sure how. I prefer not having to add it to /etc/hosts as we already configured the hostname in /etc/sysconfig/network and one place "should" be enough.
