diff --git a/.gitignore b/.gitignore
index cb91be4..241aed2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -176,5 +176,5 @@ cython_debug/
 a.out
 *.out
 *.o
-server
-client
+sample/sample_server
+sample/sample_client
diff --git a/client/cli.keytab b/client/cli.keytab
new file mode 100644
index 0000000..0dd6731
Binary files /dev/null and b/client/cli.keytab differ
diff --git a/client/env b/client/env
new file mode 100755
index 0000000..16a7856
--- /dev/null
+++ b/client/env
@@ -0,0 +1,4 @@
+PWD=$(pwd)
+KRB5_CONFIG=${PWD}/client/krb5.conf
+KRB5CCNAME=FILE:/tmp/krb5cc_cli_%{uid}
+KRB5_CCNAME=FILE:/tmp/krb5cc_cli_%{uid}
diff --git a/client/krb5.conf b/client/krb5.conf
new file mode 100755
index 0000000..b1d6ee2
--- /dev/null
+++ b/client/krb5.conf
@@ -0,0 +1,20 @@
+[logging]
+default = FILE:/var/log/krb5libs.log
+kdc = FILE:/var/log/krb5kdc.log
+admin_server = FILE:/var/log/kadmind.log
+
+[libdefaults]
+default_realm = TEST.COM
+default_ccache_name = FILE:/tmp/krb5cc_cli_%{uid}
+dns_lookup_realm = false
+dns_lookup_kdc = false
+ticket_lifetime = 24h
+renew_lifetime = 7d
+forwardable = true
+
+[realms]
+TEST.COM = {
+  kdc = krb5-kdc-server:88
+  admin_server = krb5-kdc-server
+}
+
diff --git a/sample/Makefile b/sample/Makefile
index 4a32714..389544f 100644
--- a/sample/Makefile
+++ b/sample/Makefile
@@ -1,7 +1,7 @@
 
 CC=gcc
 
-PROGRAM=client server
+PROGRAM=sample_client sample_server
 
 LIBSSL_LIBS=-lsasl2
 
@@ -14,17 +14,17 @@ all: $(PROGRAM)
 	@echo "build seccess!"
 	@echo ""
 
-client:sample-client.c
+sample_client:sample-client.c
 	$(CC) -g -c sample-client.c $(FINAL_FLAG)
-	$(CC) -g -o client sample-client.o $(FINAL_FLAG)
+	$(CC) -g -o sample_client sample-client.o $(FINAL_FLAG)
 	rm *.o
 
-server:sample-server.c
+sample_server:sample-server.c
 	$(CC) -g -c sample-server.c $(FINAL_FLAG)
-	$(CC) -g -o server sample-server.o $(FINAL_FLAG)
+	$(CC) -g -o sample_server sample-server.o $(FINAL_FLAG)
 	rm *.o
 
 clean:
-	rm server client
+	rm sample_server sample_client
 
 
diff --git a/server/env b/server/env
new file mode 100755
index 0000000..5e1daa2
--- /dev/null
+++ b/server/env
@@ -0,0 +1,3 @@
+PWD=$(pwd)
+export KRB5_CONFIG=${PWD}/server/krb5.conf
+export KRB5CCNAME=/tmp/krb5cc_hadoop_1000
diff --git a/server/hadoop.keytab b/server/hadoop.keytab
new file mode 100644
index 0000000..6c3ced5
Binary files /dev/null and b/server/hadoop.keytab differ
diff --git a/server/krb5.conf b/server/krb5.conf
new file mode 100755
index 0000000..aba5aa5
--- /dev/null
+++ b/server/krb5.conf
@@ -0,0 +1,20 @@
+[logging]
+default = FILE:/var/log/krb5libs.log
+kdc = FILE:/var/log/krb5kdc.log
+admin_server = FILE:/var/log/kadmind.log
+
+[libdefaults]
+default_realm = TEST.COM
+default_ccache_name = FILE:/tmp/krb5cc_hadoop_%{uid}
+dns_lookup_realm = false
+dns_lookup_kdc = false
+ticket_lifetime = 24h
+renew_lifetime = 7d
+forwardable = true
+
+[realms]
+TEST.COM = {
+  kdc = krb5-kdc-server:88
+  admin_server = krb5-kdc-server
+}
+