diff --git a/docs/02.ES安装与配置.md b/docs/02.ES安装与配置.md
index 60fc10d..868858b 100644
--- a/docs/02.ES安装与配置.md
+++ b/docs/02.ES安装与配置.md
@@ -36,9 +36,15 @@ source ~/.bashrc
 
 # 准备ES文件
 cd /usr/local/src/
-wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.13.1-linux-x86_64.tar.gz
-wget https://artifacts.elastic.co/downloads/kibana/kibana-7.13.1-linux-x86_64.tar.gz
-wget https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-7.13.1-linux-x86_64.tar.gz
+
+wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-8.4.1-linux-x86_64.tar.gz
+wget https://artifacts.elastic.co/downloads/kibana/kibana-8.4.1-linux-x86_64.tar.gz
+wget https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-8.4.1-linux-x86_64.tar.gz
+wget https://artifacts.elastic.co/downloads/logstash/logstash-8.4.1-linux-x86_64.tar.gz
+
+tar -zxvf elasticsearch-8.4.1-linux-x86_64.tar.gz
+
+mkdir -p /data/  &&  mv /usr/local/src/elasticsearch-8.4.1  /data/
 ```
 
 
@@ -53,10 +59,19 @@ echo "elasticsearch" | passwd --stdin elasticsearch
 
 
 # 创建es数据目录
-mkdir -p /data/elasticsearch/{data,log}
+mkdir -p /data/     
 chown -R elasticsearch /data/elasticsearch/
 
 
 
+# 配置优化
+echo "* hard nofile 65536" >>  /etc/security/limits.conf
+echo "* soft nofile 65536" >>  /etc/security/limits.conf
+echo "vm.max_map_count=262144" >> /etc/sysctl.conf
+sysctl -p
+
+
+
+
 ```