You can check your server easily without doing the real attack. Because that would result into a denial of service. You just check the version of BIND in the linux terminal: dig @google.com version.bind chaos txt

If that is one of the following (or higher), you are save: 9.10.2-P3, 9.9.7-P2, 9.9.5-3ubuntu0.4, 9.8.1.P1-4ubuntu0.12, 9.9.5-4.3ubuntu0.3, 9.9.5-9ubuntu0.2, 9.9.4-18.el7_1.3, 9.8.2-0.37.rc1.el6_7.2, 9.3.6-25.P1.el5_11.3, 9.7.0-21.P2.el5_11.2, 9.8.4.P1-6+nmu2+deb7u2~bpo60+1, 9.7.3-1~squeeze16, 9.8.4.P1-6+nmu2+deb7u6, 9.9.5-9+deb8u2, 9.9.5-11

Ofcourse everything is easier if automated, so that is exactly what following page does: https://scan.patrolserver.com/bind/CVE-2015-5477