diff --git a/src/util/Makefile.Unix b/src/util/Makefile.Unix
index 51c634167..536a28b3d 100644
--- a/src/util/Makefile.Unix
+++ b/src/util/Makefile.Unix
@@ -7,17 +7,20 @@ DEPLIBS = $(INSTALL_LIB)/libca.a $(INSTALL_LIB)/libCom.a
 SRCS.c = \
 	../ca_test.c \
 	../iocLogServer.c \
+	../chglimits.c \
 	../startCArepeater.c
 
 OBJS = \
 	ca_test.o \
 	iocLogServer.o \
+	chglimits.o \
 	startCArepeater.o
 
 
 PROD = \
 	ca_test \
 	iocLogServer \
+	chglimits \
 	startCArepeater
 
 ifeq ($(T_A),solaris)
diff --git a/src/util/chglimits.c b/src/util/chglimits.c
new file mode 100644
index 000000000..c54f7fbba
--- /dev/null
+++ b/src/util/chglimits.c
@@ -0,0 +1,154 @@
+
+/*
+ * $Id$
+ *
+ * Author: Jim Kowalkowski
+ * Date:   10/22/96
+ *
+ * $Log$
+ *
+*/
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+
+void print_error(char* prog);
+
+main(int argc, char** argv)
+{
+	int uid=getuid();
+	int nval,fval,n=0,f=0,pos=1,opos;
+	int uid_changed=0,sys_max;
+	char** args;
+	struct rlimit lim;
+
+	if(argc<2 || strcmp(argv[1],"-?")==0 ||
+	   strcmp(argv[1],"help")==0 || strcmp(argv[1],"-h")==0)
+	{
+		fprintf(stderr,"Usage: %s [-files value] [-nice value]",argv[0]);
+		fprintf(stderr," program_to_run [program options]\n\n");
+		fprintf(stderr,"  -files : Change the maximum number of file ");
+		fprintf(stderr,"descriptors the program can open.\n");
+		fprintf(stderr,"  -nice : Change the priority of the program ");
+		fprintf(stderr,"up or down by this value\n\n");
+		fprintf(stderr,"The priority value range is [-20,20).  The lower a\n");
+		fprintf(stderr,"program's nice value is, the higher priority it\n");
+		fprintf(stderr,"runs at.  So -nice -20 results in the highest\n");
+		fprintf(stderr,"priority and -nice 19 results in the lowest.\n\n");
+		return 1;
+	}
+
+	do
+	{
+		opos=pos;
+
+		if(strcmp(argv[pos],"-nice")==0)
+		{
+			n=1;
+			if(sscanf(argv[++pos],"%d",&nval)!=1)
+			{
+				fprintf(stderr,"Improper -nice value entered\n");
+				return 1;
+			}
+			++pos;
+		}
+		if(strcmp(argv[pos],"-files")==0)
+		{
+			f=1;
+			if(sscanf(argv[++pos],"%d",&fval)!=1)
+			{
+				fprintf(stderr,"Improper -file value entered\n");
+				return 1;
+			}
+			++pos;
+		}
+	}
+	while(pos!=opos && pos<argc);
+
+	if(pos==argc)
+	{
+		fprintf(stderr,"No program entered, nothing to run\n");
+		return 1;
+	}
+
+	if(f==0 && n==0)
+		fprintf(stderr,"Nothing changed, just running the program\n");
+
+	if(setuid(0)<0)
+	{
+		/*
+		fprintf(stderr,"Cannot change user to root, %s improperly installed,\n",
+			argv[0]);
+		fprintf(stderr," Program must be installed as root and afterwards\n");
+		fprintf(stderr," the command \"chmod +s %s\" must be run\n",argv[0]);
+		return 1;
+
+		fprintf(stderr,"Not a root owned program, priority changes will be ");
+		fprintf(stderr,"limited.\nFD changes may also be limited.\n");
+		*/
+	}
+	else
+		uid_changed=1;
+
+	if(n && nice(nval)<0)
+	{
+		fprintf(stderr,"Cannot change the priority to %d\n\n",nval);
+		if(!uid_changed)
+			print_error(argv[0]);
+		return 1;
+	}
+
+	if(f)
+	{
+		if(getrlimit(RLIMIT_NOFILE,&lim)<0)
+		{
+			fprintf(stderr,"Failed to get FD limits\n");
+			return 1;
+		}
+
+		lim.rlim_cur=fval;
+		sys_max=lim.rlim_max;
+
+		if(uid_changed)
+			lim.rlim_max=fval;
+
+		/* lim.rlim_max=RLIM_INFINITY; */
+
+		if(setrlimit(RLIMIT_NOFILE,&lim)<0)
+		{
+			fprintf(stderr,"Failed to set FD max to %d\n",fval);
+			fprintf(stderr,"System maximum FD hard limit is %d\n",sys_max);
+			print_error(argv[0]);
+			return 1;
+		}
+	}
+
+	if(uid_changed)
+		setuid(uid);
+
+	args=(char**)malloc((argc-pos)*sizeof(char*));
+	for(n=0;n<(argc-pos);n++) args[n]=argv[pos+n];
+	args[n]=NULL;
+
+	if(execvp(argv[pos],args)<0)
+		fprintf(stderr,"Cannot execute program\n");
+
+	return 0;
+}
+
+void print_error(char* prog)
+{
+	fprintf(stderr,"\nThe user ID could not be changed to root,\n");
+	fprintf(stderr,"so the priority or files you entered is not allowed.\n");
+	fprintf(stderr,"You can currently only reduce your priority and cannot\n");
+	fprintf(stderr,"go beyond the FD hard limit.  Contact your admin and\n");
+	fprintf(stderr,"have the program ");
+	fprintf(stderr,"installed as a root owned, setuid bit program\n");
+	fprintf(stderr,"and you will be able to increase priorities\n");
+	fprintf(stderr,"\nHere is how to install this program:\n");
+	fprintf(stderr," su root  (and enter the password)\n");
+	fprintf(stderr," chown root %s\n",prog);
+	fprintf(stderr," chmod +s %s\n",prog);
+}