diff --git a/kerberos/README.md b/kerberos/README.md
new file mode 100644
index 0000000..e6dc98e
--- /dev/null
+++ b/kerberos/README.md
@@ -0,0 +1,21 @@
+
+
+## 编译
+
+```bash
+docker build -t zeekling/kerberos ./
+```
+
+## 启动
+
+```bash
+docker run -d --name=kerberos zeekling/kerberos
+```
+
+## 安装依赖
+
+```bash
+apt install krb5-user
+```
+
+
diff --git a/kerberos/client/krb5.conf b/kerberos/client/krb5.conf
index 95071ff..27bdc46 100644
--- a/kerberos/client/krb5.conf
+++ b/kerberos/client/krb5.conf
@@ -4,7 +4,7 @@ kdc = FILE:/var/log/krb5kdc.log
 admin_server = FILE:/var/log/kadmind.log
 
 [libdefaults]
-default_realm = TEST.COM
+default_realm = TEST.HADOOP.COM
 dns_lookup_realm = false
 dns_lookup_kdc = false
 ticket_lifetime = 24h
@@ -12,7 +12,7 @@ renew_lifetime = 7d
 forwardable = true
 
 [realms]
-TEST.COM = {
+TEST.HADOOP.COM = {
   kdc = krb5-kdc-server:88
   admin_server = krb5-kdc-server
 }
diff --git a/kerberos/server/kadm5.acl b/kerberos/server/kadm5.acl
index e712aa5..a6c9f2c 100644
--- a/kerberos/server/kadm5.acl
+++ b/kerberos/server/kadm5.acl
@@ -1 +1 @@
-*/admin@TEST.COM    *
+*/admin@TEST.HADOOP.COM    *
diff --git a/kerberos/server/krb5.conf b/kerberos/server/krb5.conf
index 2067290..56e3fef 100644
--- a/kerberos/server/krb5.conf
+++ b/kerberos/server/krb5.conf
@@ -3,7 +3,7 @@ kdc_ports = 88
 kdc_tcp_ports = 88
 
 [realms]
-TEST.COM = {
+TEST.HADOOP.COM = {
   #master_key_type = aes256-cts
   acl_file = /etc/krb5kdc/kadm5.acl
   dict_file = /usr/share/dict/words
diff --git a/kerberos/start.sh b/kerberos/start.sh
index 64d715f..e614a69 100755
--- a/kerberos/start.sh
+++ b/kerberos/start.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-FQDN="test.com"
+FQDN="test.hadoop.com"
 ADMIN="admin"
 PASS="Admin12!"