CentOS 安装 配置防火墙

Question

官方下载链接： https://zookeeper.apache.org/doc/r3.5.6/zookeeperStarted.html#sc_Download

官方 release 版本发布页面：

• http://zookeeper.apache.org/releases.html
• https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/

cd /home/yyxz/download
wget  https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/stable/apache-zookeeper-3.5.6-bin.tar.gz 
tar -zxvf apache-zookeeper-3.5.6-bin.tar.gz
mv /home/yyxz/download/apache-zookeeper-3.5.6-bin /usr/local/
cd /usr/local/apache-zookeeper-3.5.6-bin/conf
cp zoo_sample.cfg zoo.cfg
vim zoo.cfg
mkdir /usr/local/apache-zookeeper-3.5.6-bin/data
mkdir /usr/local/apache-zookeeper-3.5.6-bin/logs
# 修改 dataDir=/tmp/zookeeper 部分如下
dataDir=/usr/local/apache-zookeeper-3.5.6-bin/data/
dataLogDir=/usr/local/apache-zookeeper-3.5.6-bin/logs/
# 在 clientPort=2181 下添加如下内容（视实际情况进行添加）：
server.1=api2.yyxz.link:2888:3888
server.2=hw.yyxz.link:2888:3888
server.3=localhost:2888:3888
# 从 zookeeper3.5 版本之后，需要自定义端口（默认使用 8080），否则无法启动
admin.serverPort=8090

vim /etc/profile
# 在文件末尾增加两行
export ZOOKEEPER_HOME=/usr/local/apache-zookeeper-3.5.6-bin
export PATH=$PATH:$ZOOKEEPER_HOME/bin
# End vim
source /etc/profile
echo $PATH
echo $ZOOKEEPER_HOME

# 查看 jdk 安装位置
which java
ls -lrt /usr/bin/java
ls -lrt /etc/alternatives/java
/etc/alternatives/java -> /usr/java/jdk1.8.0_202-amd64/jre/bin/java
# vim /etc/profile，配置 JAVA_HOME
export JAVA_HOME=/usr/java/jdk1.8.0_202-amd64
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH
export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH

# 查看启动状态
/usr/local/apache-zookeeper-3.5.6-bin/bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /usr/local/apache-zookeeper-3.5.6-bin/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: standalone

# 设置开机启动
## vim /etc/rc.d/rc.local,添加到开机启动脚本中
/usr/local/apache-zookeeper-3.5.6-bin/bin/zkServer.sh start

# 拷贝到其他服务器
## 焦晨利阿里云
scp -r /usr/local/apache-zookeeper-3.5.6-bin/ root@api2.yyxz.link:/usr/local/
password:yyxz@20191111
## 华为云
scp -r /usr/local/apache-zookeeper-3.5.6-bin/ root@hw.yyxz.link:/usr/local/
password:Ntrees83

# 这是每台机器的 id
## 焦晨利阿里云
echo 1 > /usr/local/apache-zookeeper-3.5.6-bin/data/myid
## 华为云
echo 2 > /usr/local/apache-zookeeper-3.5.6-bin/data/myid

其他：

查看端口是否开启的命令如下：

firewall-cmd --zone=public --query-port=2181/tcp

如果返回 no，说明端口未放开，执行以下命令即可：

firewall-cmd --zone=public --add-port=2181/tcp --permanent
# permanent 为永久生效，没有此参数重启后失效

---

安装参考： https://www.zabbix.com/download?zabbix=4.4&os_distribution=centos&os_version=7&db=mysql

中间报错：

2:postfix-2.10.1-7.el7.x86_64 has missing requires of libmysqlclient.so.18
# 解决办法
wget  http://www.percona.com/redir/downloads/Percona-XtraDB-Cluster/5.5.37-25.10/RPM/rhel6/x86_64/Percona-XtraDB-Cluster-shared-55-5.5.37-25.10.756.el6.x86_64.rpm 
rpm -ivh Percona-XtraDB-Cluster-shared-55-5.5.37-25.10.756.el6.x86_64.rpm

创建数据库：

zcat /usr/share/doc/zabbix-server-mysql*/create.sql.gz | mysql -uzabbix -p zabbix
#Edit file 
/etc/zabbix/zabbix_server.conf

设置时区

#Edit file /etc/httpd/conf.d/zabbix.conf
php_value date.timezone Asia/Shanghai

启动（开机自启动）

systemctl restart zabbix-server zabbix-agent httpd
systemctl enable zabbix-server zabbix-agent httpd

卸载重装低版本：

[root@localhost ~]# rpm -qa | grep zabbix
zabbix-agent-4.4.1-1.el7.x86_64
zabbix-release-4.4-1.el7.noarch
zabbix-web-4.4.1-1.el7.noarch
zabbix-server-mysql-4.4.1-1.el7.x86_64
zabbix-web-mysql-4.4.1-1.el7.noarch

yum remove zabbix-agent-4.4.1-1.el7.x86_64
yum remove zabbix-release-4.4-1.el7.noarch
yum remove zabbix-web-4.4.1-1.el7.noarch
yum remove zabbix-server-mysql-4.4.1-1.el7.x86_64
yum remove zabbix-web-mysql-4.4.1-1.el7.noarch

# Install Zabbix repository
rpm -Uvh  https://repo.zabbix.com/zabbix/4.0/rhel/7/x86_64/zabbix-release-4.0-2.el7.noarch.rpm 
yum clean all
# Install Zabbix server, frontend, agent
yum -y install zabbix-server-mysql zabbix-web-mysql zabbix-agent

# Create initial database
# mysql -uroot -p
password
mysql> create database zabbix character set utf8 collate utf8_bin;
mysql> grant all privileges on zabbix.* to zabbix@localhost identified by 'password';
mysql> quit;

建立数据库：

create database zabbix character set utf8 collate utf8_bin;
create user 'zabbix'@'%' identified by 'yyxz@20191113';
# 赋予 zabbix 用户从外部操作 zabbix 数据库权限
grant all privileges on zabbix.* to 'zabbix'@'%' identified by 'yyxz@20191113';
FLUSH PRIVILEGES;
quit;

启动报错：

 version libmysqlclient_18 not defined in file libmysqlclient.so.18
 # 解决办法，下载一个：
 wget -O /usr/lib/libmysqlclient.so.18  http://files.directadmin.com/services/es_7.0_64/libmysqlclient.so.18 
 chmod a+x /usr/lib/libmysqlclient.so.18

遇到报错，还未解决：

-- Unit zabbix-server.service has begun starting up.
Nov 13 18:43:48 localhost.localdomain zabbix_server[1102]: /usr/sbin/zabbix_server: relocation error: /usr/sbin/zabbix_server: symbol mysql_next_result, version libmysqlclient_18 not defined in file libmysqlclient.so.18 with link time refe
Nov 13 18:43:48 localhost.localdomain systemd[1]: zabbix-server.service: control process exited, code=exited status=127
Nov 13 18:43:48 localhost.localdomain systemd[1]: Failed to start Zabbix Server.
-- Subject: Unit zabbix-server.service has failed
-- Defined-By: systemd
-- Support:  http://lists.freedesktop.org/mailman/listinfo/systemd-devel 
-- 
-- Unit zabbix-server.service has failed.
-- 
-- The result is failed.
Nov 13 18:43:48 localhost.localdomain systemd[1]: Unit zabbix-server.service entered failed state.
Nov 13 18:43:48 localhost.localdomain systemd[1]: zabbix-server.service failed.