Guacamole 0.8.3

Trying on Ubuntu 10.04

• download the guacamole webapp from http://sourceforge.net/projects/guacamole/files/current/binary/
• deploy it

# mv guacamole-0.8.3.war /var/lib/tomcat6/webapps/

• surf to http://localhost:8080/guacamole-0.8.3. A folder /var/lib/tomcat6/webapps/guacamole-0.8.3 will be created with some content. We will need that later.
• download guacamole-server and guacamole-client from http://sourceforge.net/projects/guacamole/files/current/source/
• unpack it
• build the server:

# ./configure && make -j8 && make install
# guacd 
guacd: error while loading shared libraries: libguac.so.5: cannot open shared object file: No such file or directory
# cp ./src/libguac/.libs/libguac.so.5.0.0 /usr/lib/libguac.so
# guacd 
guacd[11581]: INFO:  Guacamole proxy daemon (guacd) version 0.8.3
guacd[11581]: INFO:  Successfully bound socket to host ::1, port 4822
guacd[11581]: INFO:  Exiting and passing control to PID 11582

• create a folder /etc/guacamole

mkdir /etc/guacamole

• create a file /etc/guacamole/guacamole.properties with the content

# Hostname and port of guacamole proxy
guacd-hostname: localhost
guacd-port:     4822

# Location to read extra .jar's from
lib-directory:  /var/lib/tomcat6/webapps/guacamole-0.8.3/WEB-INF/classes


# Authentication provider class
auth-provider: net.sourceforge.guacamole.net.basic.BasicFileAuthenticationProvider

# Properties used by BasicFileAuthenticationProvider
basic-user-mapping: /etc/guacamole/user-mapping.xml

• create a file /etc/guacamole/user-mapping.xml with the content

<user-mapping>
   <authorize username="user" password="password">
      <protocol>vnc</protocol>
         <param name="hostname">localhost</param>
         <param name="port">5901</param>
         <param name="password">password</param>
    </authorize>
</user-mapping>

• find out your tomcat's user directory:

# cat /etc/passwd|grep tomcat
tomcat6:x:113:116::/usr/share/tomcat6:/bin/false

in this case it is /usr/share/tomcat6

• create a folder .guacamole in your tomcat's user directory:

mkdir /usr/share/tomcat6/.guacamole

• link guacamole.properties into your tomcat's user directories' guacamole folder

ln -s /etc/guacamole/guacamole.properties /usr/share/tomcat6/.guacamole

• now the problem is that tomcat does not know where to find the Authentication class:

/var/lib/tomcat6/webapps/guacamole/WEB-INF/classes/net/sourceforge/guacamole/net/basic/BasicFileAuthenticationProvider.class

is not in /etc/guacamole/guacamole.properties

• so add it
• cat /etc/passwd gives me a line

tomcat6:x:113:116::/usr/share/tomcat6:/bin/false

ll /usr/share/tomcat6/.guacamole/
total 8
drwxr-xr-x 2 root root 4096 Nov 26 07:58 ./
drwxr-xr-x 6 root root 4096 Nov 26 07:57 ../
lrwxrwxrwx 1 root root   35 Nov 26 07:58 guacamole.properties -> /etc/guacamole/guacamole.properties

• works now. So the thing is:
  • take care that it is called guacamole and not guacamole-0.8.3 (sure?)
  • make sure the classpath in /etc/guacamole/guacamole.properties is correct, e.g.

# Location to read extra .jar's from
lib-directory:  /var/lib/tomcat6/webapps/guacamole/WEB-INF/classes

• start a vnc server, as password set password (the vnc password given in user-mappings.xml)

vncserver

• point your browser to http://localhost:8080/guacamole-0.8.3
• log in as user, password password (the user given in user-mappings.xml)

• next steps: SSL
• next steps: proxypass

Server error

• now I got a server error so I straced guacd:

strace -p 15332

and saw

[pid 20344] open("/usr/lib/x86_64-linux-gnu/libguac-client-vnc.so", O_RDONLY) = -1 ENOENT (No such file or directory)

so the problem is that libguac-client-vnc.so is missing.

• downloaded java version 1.7.45 and compiled guacamole-client using mvn. But there was no *.so* file in it
• so installed libvncserver-dev and rebuild and reinstalled guacamole-server
• and there it is, libguac-client-vnc.so
• now the error message changed from "server error" to "unauthorized"

See also

• http://www.filegott.se/prd/index.php/how-tos/19-how-to-setup-guacamole-in-linux-ubuntu
• http://guac-dev.org/doc/gug/installing-guacamole.html#idp99200