[root@admin ~]# netstat -anp|grep -i listen tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1/systemd tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 30056/sshd: /usr/sb tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 30410/master tcp6 0 0 :::33060 :::* LISTEN 29118/mysqld tcp6 0 0 :::9290 :::* LISTEN 29993/ipmi_exporter tcp6 0 0 :::9100 :::* LISTEN 28966/node_exporter tcp6 0 0 :::111 :::* LISTEN 1/systemd tcp6 0 0 :::4243 :::* LISTEN 29015/dockerd tcp6 0 0 :::32886 :::* LISTEN 29118/mysqld tcp6 0 0 :::4886 :::* LISTEN 29118/mysqld tcp6 0 0 ::1:25 :::* LISTEN 30410/master unix 2 [ ACC ] STREAM LISTENING 4137916 29118/mysqld /u01/my3306/run/mysql.sock unix 2 [ ACC ] STREAM LISTENING 33545 1/systemd /run/systemd/private unix 2 [ ACC ] STREAM LISTENING 125240 29015/dockerd /var/run/docker/metrics.sock unix 2 [ ACC ] STREAM LISTENING 2941242 13549/sdmonitor /dev/sd_sdcc_signin unix 2 [ ACC ] STREAM LISTENING 80955 1/systemd /run/lvm/lvmetad.socket unix 2 [ ACC ] STREAM LISTENING 80958 1/systemd /run/lvm/lvmpolld.socket unix 2 [ ACC ] STREAM LISTENING 2941251 13549/sdmonitor /dev/sd_sdec_signin unix 2 [ ACC ] STREAM LISTENING 2941253 13549/sdmonitor /dev/sd_sdexam_signin unix 2 [ ACC ] SEQPACKET LISTENING 80966 1/systemd /run/udev/control unix 2 [ ACC ] STREAM LISTENING 13383 1/systemd /run/systemd/journal/stdout unix 2 [ ACC ] STREAM LISTENING 143448 30410/master private/tlsmgr unix 2 [ ACC ] STREAM LISTENING 2941264 13549/sdmonitor /dev/sd_sdsvrd_signin unix 2 [ ACC ] STREAM LISTENING 119309 18211/trivial-rewri private/rewrite unix 2 [ ACC ] STREAM LISTENING 2941270 13549/sdmonitor /dev/sd_sdmonitor_command unix 2 [ ACC ] STREAM LISTENING 2941273 13549/sdmonitor /dev/sd_udcenter_signin unix 2 [ ACC ] STREAM LISTENING 119312 18220/bounce private/bounce unix 2 [ ACC ] STREAM LISTENING 143451 30410/master private/defer unix 2 [ ACC ] STREAM LISTENING 143454 30410/master private/trace unix 2 [ ACC ] STREAM LISTENING 143457 30410/master private/verify unix 2 [ ACC ] STREAM LISTENING 143463 30410/master private/proxymap unix 2 [ ACC ] STREAM LISTENING 143466 30410/master private/proxywrite unix 2 [ ACC ] STREAM LISTENING 143469 30410/master private/smtp unix 2 [ ACC ] STREAM LISTENING 143472 30410/master private/relay unix 2 [ ACC ] STREAM LISTENING 143478 30410/master private/error unix 2 [ ACC ] STREAM LISTENING 143481 30410/master private/retry unix 2 [ ACC ] STREAM LISTENING 143484 30410/master private/discard unix 2 [ ACC ] STREAM LISTENING 143487 18217/local private/local unix 2 [ ACC ] STREAM LISTENING 143490 30410/master private/virtual unix 2 [ ACC ] STREAM LISTENING 143493 30410/master private/lmtp unix 2 [ ACC ] STREAM LISTENING 143496 30410/master private/anvil unix 2 [ ACC ] STREAM LISTENING 143499 30410/master private/scache unix 2 [ ACC ] STREAM LISTENING 2941574 13620/sdsvrd /dev/sdsock unix 2 [ ACC ] STREAM LISTENING 2941576 13620/sdsvrd /dev/sd_update_config unix 2 [ ACC ] STREAM LISTENING 114321 29003/abrtd /var/run/abrt/abrt.socket unix 2 [ ACC ] STREAM LISTENING 5128869 16325/sdcc /dev/sd_cloudhelper_update unix 2 [ ACC ] STREAM LISTENING 119238 28969/lsmd /var/run/lsm/ipc/simc unix 2 [ ACC ] STREAM LISTENING 98248 29015/dockerd /run/docker/libnetwork/195fc13c6e332de5eecb04b3395ee7603dc39db11dc8065f58d6e9764846a7a8.sock unix 2 [ ACC ] STREAM LISTENING 119240 28969/lsmd /var/run/lsm/ipc/sim unix 2 [ ACC ] STREAM LISTENING 131282 29015/dockerd /var/run/docker.sock unix 2 [ ACC ] STREAM LISTENING 96989 1/systemd /var/run/rpcbind.sock unix 2 [ ACC ] STREAM LISTENING 96995 1/systemd /run/dbus/system_bus_socket unix 2 [ ACC ] STREAM LISTENING 143437 18315/pickup public/pickup unix 2 [ ACC ] STREAM LISTENING 143441 18204/cleanup public/cleanup unix 2 [ ACC ] STREAM LISTENING 4835727 29118/mysqld /tmp/mysqlx.sock unix 2 [ ACC ] STREAM LISTENING 143444 30410/master public/qmgr unix 2 [ ACC ] STREAM LISTENING 143460 30410/master public/flush unix 2 [ ACC ] STREAM LISTENING 143475 30410/master public/showq unix 2 [ ACC ] STREAM LISTENING 70646 29127/docker-contai /var/run/docker/containerd/docker-containerd-debug.sock unix 2 [ ACC ] STREAM LISTENING 70648 29127/docker-contai /var/run/docker/containerd/docker-containerd.sock [root@admin ~]# ps -elf|grep mysqld 4 S root 18593 14651 0 80 0 - 28181 pipe_w 18:02 pts/41 00:00:00 grep --color=auto mysqld 0 S mysql 29118 28827 3 80 0 - 1241263 poll_s 11:15 pts/39 00:12:19 /data/mysql/bin/mysqld --defaults-file=/u01/my3306/my.cnf [root@admin ~]# uname -a Linux admin 4.19.112-1.el7.x86_64 #1.el7 SMP Sun Mar 22 15:45:54 CST 2020 x86_64 x86_64 x86_64 GNU/Linux [root@admin ~]# cat /etc/redhat-release CentOS Linux release 7.6.1810 (Core) /data/mysql/bin/mysql -h127.0.0.1 -P4886 -umy_polarx -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 130 Server version: 8.0.18-debug Source distribution Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> show databases ; +---------------------------+ | Database | +---------------------------+ | __recycle_bin__ | | information_schema | | mysql | | performance_schema | | polardbx_meta_db_polardbx | | sys | +---------------------------+ 6 rows in set (0.01 sec) mysql> status -------------- /data/mysql/bin/mysql Ver 8.0.18 for Linux on x86_64 (Source distribution) Connection id: 130 Current database: Current user: my_polarx@localhost SSL: Cipher in use is TLS_AES_256_GCM_SHA384 Current pager: stdout Using outfile: '' Using delimiter: ; Server version: 8.0.18-debug Source distribution Protocol version: 10 Connection: 127.0.0.1 via TCP/IP Server characterset: utf8 Db characterset: utf8 Client characterset: utf8mb4 Conn. characterset: utf8mb4 TCP port: 4886 Uptime: 6 hours 38 min 4 sec Threads: 2 Questions: 28 Slow queries: 0 Opens: 172 Flush tables: 3 Open tables: 92 Queries per second avg: 0.001 --------------