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$ systemctl list-unit-files --type=service | grep snmp* snmpd.service disabled snmptrapd.service disabled service all $ systemctl list-unit-files --type=service UNIT FILE STATE abrt-ccpp.service enabled abrt-oops.service enabled abrt-pstoreoops.service disabled abrt-vmcore.service enabled abrt-xorg.service enabled abrtd.service enabled accounts-daemon.service enabled alsa-restore.service static ..

$ cat /etc/redhat-release CentOS Linux release 7.8.2003 (Core) $ cat /etc/*release* CentOS Linux release 7.8.2003 (Core) Derived from Red Hat Enterprise Linux 7.8 (Source) NAME="CentOS Linux" VERSION="7 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="7" PRETTY_NAME="CentOS Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:7" HOME_URL="https://www.centos.org/" BUG_REPORT_URL=..

$ sudo apt install net-tools ---------------------------------------------------------------------------- $ ifconfig Command 'ifconfig' not found, but can be installed with: sudo apt install net-tools ----------------------------------------------------------------------------

$ sudo apt install mariadb-server $ sudo mysql_secure_installation

$ curl -sS https://downloads.mariadb.com/MariaDB/mariadb_repo_setup | sudo bash

$ sudo vi /etc/firewalld/zones/public.xml Public For use in public areas. You do not trust the other computers on networks to not harm your computer. Only selected incoming connections are accepted.

CentOS7 + MariaDB 10.4 1. yum install https://zetawiki.com/wiki/CentOS7_MariaDB_설치 CentOS7 MariaDB 설치 - 제타위키 다른 뜻에 대해서는 CentOS6 MariaDB 설치 문서를 참조하십시오. 다른 뜻에 대해서는 우분투 MariaDB 설치 문서를 참조하십시오. CentOS 7.6에서 테스트하였습니다. 리눅스 MariaDB 설치 CentOS MariaDB 설치 2 re zetawiki.com or https://mariadb.com/kb/en/yum/ 2. source install - MariaDB 10.4 download https://downloads.mariadb.org/mariadb/10.4.13/ > mariadb-10..

1. gnome-disk-utility package install $ sudo apt install gnome-disk-utility 2. gnome-disks application run $ gnome-disks 3. bad block check $ sudo badblocks -sv /dev/sda > bad-blocks-result 4. fix disk $ sudo fsck -t ext4 -l bad-blocks-result /dev/sda1 https://askubuntu.com/questions/59064/how-to-run-a-checkdisk

1. Oracle JDBC driver 12.2.0.1 (ojdbc8.jar) download https://www.oracle.com/database/technologies/jdbc-ucp-122-downloads.html 2. ojdbc8.jar Nexus 3.23.x Upload Nexus login : http://localhost:8081 Sign in left menu [Upload] Click -> [maven-releases] click - File : [Browse] ojdbc8.jar select - Extension : jar - Group ID : com.oracle.jdbc - Artifact ID : ojdbc8 - Version : 12.2.0.1 [Upload] 3. pom...