安裝教程 記錄高可用環境搭建

目錄

nginx解除安裝、安裝、驗證

keepalived解除安裝、安裝、驗證

記錄keepalived錯誤

記錄乙個小tip：putty 如何登入另一台linux伺服器

ssh -l login_name hostname

解除安裝nginx比較簡單，由於我本身沒有使用yum安裝，所以需要手動解除安裝

首先全域性查詢ngnix的相關檔案

find / -name nginx*

然後開始安裝nginx

putty登陸伺服器進入安裝目錄cd /usr/local

tar -zxvf nginx-1.19.1.tar.gz

# 新建nginx目錄
mkdir mginx
cd nginx-1.19.1
./configure --prefix=/usr/local/nginx
make & make install

cd usr/local/nginx/sbin

./nginx

可以輸入ps -ef | grep nignx檢視nginx的啟動狀態，出現master就表示啟動成功

或者直接在瀏覽器輸入ip可以看到結果『welcome to nginx』的頁面

停掉nginx的話只要，kill掉主機的nginx，kill -9 pid(pid就是上面ps -ef | grep nignx查到的第二列的序列號)

解除安裝keepalived

進入keepalived的安裝目錄，我的在/usr/local/keepalived

cd /usr/local/keepalived

make uninstall

rm /etc/keepalived/keepalived/conf

rm /etc/sysconfig/keepalived
rm /usr/local/sbin/keepalived
rm /etc/init.d/keepalived

tar -zxvf keepalived-2.0.20.tar.gz

# 新建keepalived目錄
mkdir keepalived
cd keepalived-2.0.20
./configure --prefix=/usr/local/keepalived
# 在安裝之前配置一下openssl的so動態庫，以免安裝會失敗
export library_path=/usr/local/lib64
make & make install

mkdir /etc/keepalived

cp /usr/local/keepalived/ect/keepalived/keepalived.conf /etc/keepalived/keepalived/conf
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/keepalived
cp /usr/local/keepalived/sbin/keepalived /usr/local/sbin/keepalived
cp /usr/local/keepalived-2.0.20/keepalived/ect/init.d/keepalived /etc/init.d/keepalived

# 設定開機自啟動

chkconfig -add keepalived
chkconfig keepalived on
#檢視是否已經加入了開機自啟動的序列    
chkconfig -list
#啟動服務    
service keepalived start
#檢視啟動狀態    
systemctl status keepalived

安裝 keepalived 後，啟動時發現報錯，使用命令systemctl status keepalived檢視狀態，有這樣一行：

pid file keepalived.pid not readable (yet?) after start：no such file or directory

pidfile=/run/keepalived.pid

最初我stop keepalived的服務，然後tcpdump -i ens33 vrrp -n ，奇怪的是竟然還有vrrp的包在跑 ps -ef | grep keepalive ，發現還有程序。我用pkill -9 keepalived。然後重啟keepalived就正常了。 keepalived正常執行的話，檔案/var/run/keepalived.pid是自動生成的。

然後service keepalived restart

終於終於，喜大普奔，感謝nightwish5！！！

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