Re: Problem with java-package.
Update:
It seems slapd (openldap) was to blaim.
as you can see from the stacktraces
http://foo.mu/mongo.out (root)
http://foo.mu/mongo2.out (non-root)
they both try port 389 (ldap) first.
As non-root, it'll fall back on port #53.
The weird thing is:
root@tanis:~# grep hosts /etc/nsswitch.conf
hosts: dns ldap
So I can't get this to add up.
Suggestions?
Ole Christian Rynning wrote:
>I don't know where to direct this problem in fact, google gives me
>nothing of value. Nor do I know what cause it.
>InetAddress won't resolve hostnames as root. => UnknownHostExceptions
>and MessageExceptions && so on.
>
>Is this a *security feature*? I wan't to be able to run java as root in
>a development context (tomcat, java...)
>
>Best regards,
>
>Ole Christian
>
>
>##############
># The setup:
>
>tanis:~# head /etc/hosts
>127.0.0.1 localhost
>217.78.96.30 tanis.inn.no tanis
>
># The following lines are desirable for IPv6 capable hosts
>::1 ip6-localhost ip6-loopback
>fe00::0 ip6-localnet
>ff00::0 ip6-mcastprefix
>ff02::1 ip6-allnodes
>ff02::2 ip6-allrouters
>ff02::3 ip6-allhosts
>tanis:~# ping -c 2 localhost
>PING localhost (127.0.0.1) 56(84) bytes of data.
>64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.022 ms
>64 bytes from localhost (127.0.0.1): icmp_seq=2 ttl=64 time=0.021 ms
>
>--- localhost ping statistics ---
>2 packets transmitted, 2 received, 0% packet loss, time 999ms
>rtt min/avg/max/mdev = 0.021/0.021/0.022/0.004 ms
>tanis:~# nslookup localhost
>Server: 127.0.0.1
>Address: 127.0.0.1#53
>
>Name: localhost
>Address: 127.0.0.1
>
>##############
>#The code:
>
>import java.net.*;
>class Mongo {
> public static void main(String[] args) {
> try{
> System.out.println(java.net.InetAddress.getByName("localhost"));
> }catch (Exception ex) { ex.printStackTrace(); }
> }
>}
>
>##############
># "The Proof"
>
>##############
># As a regular user
>
>oc@tanis:~$ cat vars.sh
>ANT_HOME=/usr/local/ant
>BASH=/bin/bash
>CATALINA_HOME=/usr/local/tomcat
>CVSROOT=:pserver:oc@slacor:2401/home/cvs/cvsrep
>HOSTNAME=tanis
>JAVA_HOME=/usr/lib/j2sdk1.4-sun
>JAVA_OPTS='-Xms256M -Xmx512M -Djava.awt.headless=true'
>JDK_HOME=/usr/lib/j2sdk1.4-sun
>JRE_HOME=/usr/lib/j2sdk1.4-sun
>LANG=en_US
>LANGUAGE=en_NO:en_US:en_GB:en
>PATH=/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/usr/lib/j2sdk1.4-sun/bin:/usr/local/ant/bin
>export ANT_HOME BASH CATALINA_HOME HOSTNAME JAVA_HOME JAVA_OPTS JDK_HOME
>JRE_HOME LANG LANGUAGE PATH
>oc@tanis:~$ . vars.sh
>oc@tanis:~$ env
>HZ=100
>HOSTNAME=tanis
>SHELL=/bin/bash
>TERM=xterm
>CATALINA_HOME=/usr/local/tomcat
>BASH=/bin/bash
>ANT_HOME=/usr/local/ant
>JRE_HOME=/usr/lib/j2sdk1.4-sun
>JAVA_OPTS=-Xms256M -Xmx512M -Djava.awt.headless=true
>USER=oc
>LS_COLORS=no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.gz=01;31:*.bz2=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.avi=01;35:*.fli=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.ogg=01;35:*.mp3=01;35:*.wav=01;35:
>MAIL=/var/mail/oc
>PATH=/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/usr/lib/j2sdk1.4-sun/bin:/usr/local/ant/bin
>PWD=/home/oc
>JAVA_HOME=/usr/lib/j2sdk1.4-sun
>LANG=en_US
>JDK_HOME=/usr/lib/j2sdk1.4-sun
>SHLVL=1
>HOME=/home/oc
>LANGUAGE=en_NO:en_US:en_GB:en
>LOGNAME=oc
>_=/usr/bin/env
>oc@tanis:~$ javac Mongo.java
>oc@tanis:~$ java Mongo
>localhost/127.0.0.1
>
>##############
># As root user
>
>tanis:~# cat vars.sh
>ANT_HOME=/usr/local/ant
>BASH=/bin/bash
>CATALINA_HOME=/usr/local/tomcat
>CVSROOT=:pserver:oc@slacor:2401/home/cvs/cvsrep
>HOSTNAME=tanis
>JAVA_HOME=/usr/lib/j2sdk1.4-sun
>JAVA_OPTS='-Xms256M -Xmx512M -Djava.awt.headless=true'
>JDK_HOME=/usr/lib/j2sdk1.4-sun
>JRE_HOME=/usr/lib/j2sdk1.4-sun
>LANG=en_US
>LANGUAGE=en_NO:en_US:en_GB:en
>PATH=/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/usr/lib/j2sdk1.4-sun/bin:/usr/local/ant/bin
>export ANT_HOME BASH CATALINA_HOME HOSTNAME JAVA_HOME JAVA_OPTS JDK_HOME
>JRE_HOME LANG LANGUAGE PATH
>tanis:~# . vars.sh
>tanis:~# env
>HZ=100
>HOSTNAME=tanis
>SHELL=/bin/bash
>TERM=xterm
>CATALINA_HOME=/usr/local/tomcat
>BASH=/bin/bash
>OLDPWD=/home/oc
>ANT_HOME=/usr/local/ant
>JRE_HOME=/usr/lib/j2sdk1.4-sun
>JAVA_OPTS=-Xms256M -Xmx512M -Djava.awt.headless=true
>USER=root
>MAIL=/var/mail/root
>PATH=/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/usr/lib/j2sdk1.4-sun/bin:/usr/local/ant/bin
>PWD=/root
>JAVA_HOME=/usr/lib/j2sdk1.4-sun
>LANG=en_US
>PS1=\h:\w\$
>JDK_HOME=/usr/lib/j2sdk1.4-sun
>SHLVL=1
>HOME=/root
>LANGUAGE=en_NO:en_US:en_GB:en
>LOGNAME=root
>_=/usr/bin/env
>tanis:~# javac Mongo.java
>tanis:~# java Mongo
>java.net.UnknownHostException: localhost: localhost
> at java.net.InetAddress.getAllByName0(InetAddress.java:1011)
> at java.net.InetAddress.getAllByName0(InetAddress.java:981)
> at java.net.InetAddress.getAllByName(InetAddress.java:975)
> at java.net.InetAddress.getByName(InetAddress.java:889)
> at Mongo.main(Mongo.java:5)
>
>
>
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M | +47 411 44 384
W | http://www.foo.mu
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