diff --git a/cluster/apt.apply.update.sh b/cluster/apt.apply.update.sh
index b403e4b..8a45e71 100755
--- a/cluster/apt.apply.update.sh
+++ b/cluster/apt.apply.update.sh
@@ -291,17 +291,11 @@ Try to clean temp files, downloaded packages,…".
 # }}}
 main() {                                                        # {{{
 
-	## If SGE is not yet available on this host {{{
-	### Exit
-	is_sge_host \
-		|| exit 0
-	## }}}
-
 	## Test if SGE Master is reachable {{{
 	### If sge_master_uri wasn't defined (environment variable,…) {{{
 	if [ -z "${sge_master_uri}" ]; then
-		## Use local host for sge_master_uri
-		sge_master_uri="physix-master.ipr.univ-rennes1.fr"
+		## Get SGE master from current configuration
+		sge_master_uri=$(grep --max-count=1 -- "" /var/lib/gridengine/default/common/act_qmaster 2>/dev/null || echo "NO MASTER")
 	fi
 	### }}}
 	### If sge_master_port wasn't defined (environment variable,…) {{{
@@ -318,6 +312,12 @@ main() {                                                        # {{{
 	### }}}
 	## }}}
 
+	## If SGE is not yet available on this host {{{
+	### Exit
+	is_sge_host \
+		|| exit 0
+	## }}}
+
 	manage_args "${ARGS}"
 
 	## Define vars
diff --git a/cluster/apt.check.update.sh b/cluster/apt.check.update.sh
index 426317a..53173f6 100755
--- a/cluster/apt.check.update.sh
+++ b/cluster/apt.check.update.sh
@@ -227,17 +227,11 @@ SGE slots currently in use: ${RED}${sge_slots_used:=/dev/null}${COLOR_DEBUG}."
 # }}}
 main() {                                                        # {{{
 
-	## If SGE is not yet available on this host {{{
-	### Exit
-	is_sge_host \
-		|| exit 0
-	## }}}
-
 	## Test if SGE Master is reachable {{{
 	### If sge_master_uri wasn't defined (environment variable,…) {{{
 	if [ -z "${sge_master_uri}" ]; then
-		## Use local host for sge_master_uri
-		sge_master_uri="physix-master.ipr.univ-rennes1.fr"
+		## Get SGE master from current configuration
+		sge_master_uri=$(grep --max-count=1 -- "" /var/lib/gridengine/default/common/act_qmaster 2>/dev/null || echo "NO MASTER")
 	fi
 	### }}}
 	### If sge_master_port wasn't defined (environment variable,…) {{{
@@ -254,6 +248,12 @@ main() {                                                        # {{{
 	### }}}
 	## }}}
 
+	## If SGE is not yet available on this host {{{
+	### Exit
+	is_sge_host \
+		|| exit 0
+	## }}}
+
 	## Define all vars
 	define_vars
 
diff --git a/cluster/maco.apply.update.sh b/cluster/maco.apply.update.sh
index 0ca3d54..5cdf93e 100755
--- a/cluster/maco.apply.update.sh
+++ b/cluster/maco.apply.update.sh
@@ -288,17 +288,11 @@ Try to clean temp files,…"
 # }}}
 main() {                                                        # {{{
 
-	## If SGE is not yet available on this host {{{
-	### Exit
-	is_sge_host \
-		|| exit 0
-	## }}}
-
 	## Test if SGE Master is reachable {{{
 	### If sge_master_uri wasn't defined (environment variable,…) {{{
 	if [ -z "${sge_master_uri}" ]; then
-		## Use local host for sge_master_uri
-		sge_master_uri="physix-master.ipr.univ-rennes1.fr"
+		## Get SGE master from current configuration
+		sge_master_uri=$(grep --max-count=1 -- "" /var/lib/gridengine/default/common/act_qmaster 2>/dev/null || echo "NO MASTER")
 	fi
 	### }}}
 	### If sge_master_port wasn't defined (environment variable,…) {{{
@@ -315,6 +309,12 @@ main() {                                                        # {{{
 	### }}}
 	## }}}
 
+	## If SGE is not yet available on this host {{{
+	### Exit
+	is_sge_host \
+		|| exit 0
+	## }}}
+
 	manage_args "${ARGS}"
 
 	sge_hostname="$(hostname -f)"
diff --git a/cluster/maco.check.update.sh b/cluster/maco.check.update.sh
index 9fbdb75..e8fa12e 100755
--- a/cluster/maco.check.update.sh
+++ b/cluster/maco.check.update.sh
@@ -295,8 +295,8 @@ main() {                                                        # {{{
 	## Test if SGE Master is reachable {{{
 	### If sge_master_uri wasn't defined (environment variable,…) {{{
 	if [ -z "${sge_master_uri}" ]; then
-		## Use local host for sge_master_uri
-		sge_master_uri="physix-master.ipr.univ-rennes1.fr"
+		## Get SGE master from current configuration
+		sge_master_uri=$(grep --max-count=1 -- "" /var/lib/gridengine/default/common/act_qmaster 2>/dev/null || echo "NO MASTER")
 	fi
 	### }}}
 	### If sge_master_port wasn't defined (environment variable,…) {{{
diff --git a/cluster/sge.disable.host.queue.sh b/cluster/sge.disable.host.queue.sh
index cbe1d82..184b9fb 100755
--- a/cluster/sge.disable.host.queue.sh
+++ b/cluster/sge.disable.host.queue.sh
@@ -66,20 +66,6 @@ define_vars() {                                                 # {{{
 	fi
 	## }}}
 
-	## If sge_master_uri wasn't defined (environment variable,…) {{{
-	if [ -z "${sge_master_uri}" ]; then
-		## Use local host for sge_master_uri
-		sge_master_uri="physix-master.ipr.univ-rennes1.fr"
-	fi
-	## }}}
-
-	## If sge_master_port wasn't defined (environment variable,…) {{{
-	if [ -z "${sge_master_port}" ]; then
-		## Use local host for sge_master_port
-		sge_master_port="6444"
-	fi
-	## }}}
-
 	## If the given host to manage is the current one {{{
 	if is_current_host "${sge_hostname}" ; then
 		debug_message "define_vars − \
@@ -262,15 +248,30 @@ Try to disable SGE queue: ${RED}${local_sge_queue_name:=/dev/null}@${local_sge_h
 # }}}
 main() {                                                        # {{{
 
-	## Define all vars according the selected options
-	define_vars
+	## Test if SGE Master is reachable {{{
+	### If sge_master_uri wasn't defined (environment variable,…) {{{
+	if [ -z "${sge_master_uri}" ]; then
+		## Get SGE master from current configuration
+		sge_master_uri=$(grep --max-count=1 -- "" /var/lib/gridengine/default/common/act_qmaster 2>/dev/null || echo "NO MASTER")
+	fi
+	### }}}
+	### If sge_master_port wasn't defined (environment variable,…) {{{
+	if [ -z "${sge_master_port}" ]; then
+		## Use local host for sge_master_port
+		sge_master_port="6444"
+	fi
+	### }}}
 
-	## If SGE Master is not reachable from this host {{{
-	### Exit
+	### If SGE Master is not reachable from this host {{{
+	#### Exit
 	is_sge_master_available \
 		|| exit 0
+	### }}}
 	## }}}
 
+	## Define all vars according the selected options
+	define_vars
+
 	## Simple debug message with color to valid current variables
 	debug_message "main − Try to manage \
 SGE queue(s): ${RED}${sge_queues_name_print:=/dev/null}${COLOR_DEBUG}\
diff --git a/cluster/sge.enable.host.queue.sh b/cluster/sge.enable.host.queue.sh
index 94ec4df..ef0bbd7 100755
--- a/cluster/sge.enable.host.queue.sh
+++ b/cluster/sge.enable.host.queue.sh
@@ -521,17 +521,11 @@ Previously disabled by a script (or FORCE is enable), try to enable SGE queue: $
 # }}}
 main() {                                                        # {{{
 
-	## If SGE is not yet available on this host {{{
-	### Exit
-	is_sge_host \
-		|| exit 0
-	## }}}
-
 	## Test if SGE Master is reachable {{{
 	### If sge_master_uri wasn't defined (environment variable,…) {{{
 	if [ -z "${sge_master_uri}" ]; then
-		## Use local host for sge_master_uri
-		sge_master_uri="physix-master.ipr.univ-rennes1.fr"
+		## Get SGE master from current configuration
+		sge_master_uri=$(grep --max-count=1 -- "" /var/lib/gridengine/default/common/act_qmaster 2>/dev/null || echo "NO MASTER")
 	fi
 	### }}}
 	### If sge_master_port wasn't defined (environment variable,…) {{{
@@ -548,6 +542,12 @@ main() {                                                        # {{{
 	### }}}
 	## }}}
 
+	## If SGE is not yet available on this host {{{
+	### Exit
+	is_sge_host \
+		|| exit 0
+	## }}}
+
 	## Define all vars according the selected options
 	define_vars