This was introduced in 1.4.1 with d26c147.

This PR sets the active hostname back to the name specified in the Vagrantfile (fqdn) and updates the unit tests.

Setting it to the short name causes loads of problems while configuring the system. I've had issues with sudoers hostname matching, Weblogic certificate generation and a few others. Even if I changed all of the Chef recipes, the fqdn is set in /etc/sysconfig/network so the active hostname will switch to the fqdn after a reboot.

plugins/guests/redhat/cap/change_host_name.rb

@@ -34,7 +34,7 @@ module VagrantPlugins
         def get_current_hostname
           hostname = ''
           block = lambda do |type, data|
-            if type == :stdout 
+            if type == :stdout
               hostname += data.chomp
             end
           end
@@ -49,8 +49,8 @@ module VagrantPlugins
         end
 
         def update_hostname
-          sudo "hostname #{short_hostname}"
-        end 
+          sudo "hostname #{fqdn}"
+        end
 
         # /etc/hosts should resemble:
         # 127.0.0.1   host.fqdn.com host localhost ...

test/unit/plugins/guests/support/shared/redhat_like_host_name_examples.rb

@@ -1,9 +1,5 @@
 shared_examples 'a partial redhat-like host name change' do
   shared_examples 'shared between newhostname styles' do
-    it 'updates hostname on the machine with the new short hostname' do
-      communicator.expect_command(%q(hostname newhostname))
-      described_class.change_host_name(machine, new_hostname)
-    end
 
     it 'sets dhcp_hostname with the provided short hostname' do
       communicator.expect_command(%q(sed -i 's/\\(DHCP_HOSTNAME=\\).*/\\1"newhostname"/' /etc/sysconfig/network-scripts/ifcfg-*))
@@ -12,7 +8,7 @@ shared_examples 'a partial redhat-like host name change' do
 
     it 'restarts networking' do
       communicator.expect_command(%q(service network restart))
-      described_class.change_host_name(machine, new_hostname)    
+      described_class.change_host_name(machine, new_hostname)
     end
   end
 
@@ -25,6 +21,11 @@ shared_examples 'a partial redhat-like host name change' do
       communicator.expect_command(%q(sed -i 's/\\(HOSTNAME=\\).*/\\1newhostname.newdomain.tld/' /etc/sysconfig/network))
       described_class.change_host_name(machine, new_hostname)
     end
+
+    it 'updates hostname on the machine with the new hostname' do
+      communicator.expect_command(%q(hostname newhostname.newdomain.tld))
+      described_class.change_host_name(machine, new_hostname)
+    end
   end
 
   context 'when newhostname is simple' do
@@ -36,6 +37,12 @@ shared_examples 'a partial redhat-like host name change' do
       communicator.expect_command(%q(sed -i 's/\\(HOSTNAME=\\).*/\\1newhostname/' /etc/sysconfig/network))
       described_class.change_host_name(machine, new_hostname)
     end
+
+    it 'updates hostname on the machine with the new hostname' do
+      communicator.expect_command(%q(hostname newhostname))
+      described_class.change_host_name(machine, new_hostname)
+    end
+
   end
 end
 
@@ -66,15 +73,15 @@ shared_examples 'mutating /etc/hosts helpers' do
   let(:expression) { sed_command.sub(%r{^sed -i '\(.*\)' /etc/hosts$}, "\1") }
   let(:search)     { Regexp.new(expression.split('@')[1].gsub(/\\/,'')) }
   let(:replace)    { expression.split('@')[2] }
-end 
+end
 
 shared_examples 'inserting hostname in /etc/hosts' do
   include_examples 'mutating /etc/hosts helpers'
-  
+
   context 'when target hostname is qualified' do
     let(:new_hostname) {'newhostname.newdomain.tld'}
 
-    it 'works with a basic file' do  
+    it 'works with a basic file' do
       original_etc_hosts = <<-ETC_HOSTS.gsub(/^ */, '')
         127.0.0.1   localhost.localdomain localhost
         ::1     localhost6.localdomain6 localhost6