Linux/Unix

10 02 2021

Linux Centos 6 에 MySQL8 설치

Haeng Ho Kang | OS, DataBase, Linux/Unix, MySQL(MariaDB)

1) mysql 8.0 다운도르 rpm -Uvh https://repo.mysql.com/mysql80-community-release-el6-3.noarch.rpm 2)기존 받은 파일은 사용하지 않게 처리 sed -i ‘s/enabled=1/enabled=0/’ /etc/yum.repos.d/mysql-community.repo sed -i ‘s/enabled=1/enabled=0/’ /etc/yum.repos.d/mysql-community-source.repo 3)install yum –enablerepo=mysql80-community install mysql-community-server 4)Error Requires: libsasl2.so.3()(64bit) => yum whatprovides */libsasl2.so.3 Requires: libmysqlclient.so.16()(64bit) =>yum whatprovides */libmysqlclient.so.16 Requires: libstdc++.so.6(GLIBCXX_3.4.14)(64bit) =>yum whatprovides */libstdc++.so.6

10 02 2021

Linux mysql 삭제

Haeng Ho Kang | OS, DataBase, Linux/Unix, MySQL(MariaDB)

1.서비스 삭제 #chkconfig –list mysqld 2.등록한 서비스 파일 삭제 #cd /etc/init.d #rm -rf mysqld 3.설정정보삭제 # rm -rf /var/lib/mysql 4.yum 으로 설치 하지 않았다면 프로그램과 데이타파일을 직접 삭제한다.

10 02 2021

Linux Service 등록/삭제

Haeng Ho Kang | OS, Linux/Unix

서비스에 등록되어 있는 shell들은 #cd /etc/init.d 하면 확인 가능하다. chkconfig –list 를 하면 서비스에 등록한 프로그램들을 볼수 있습니다. #chkconfig –del tomcat 하면 서비스에서 삭제

12 03 2020

Apache Http 와 Tomcat 동접 늘리기

Haeng Ho Kang | Programming, Server, WAS, Linux/Unix, Web

1. 아파치 설정값 확인 ./apachectl -V 환경 Linux apache 2.2.19 MPM은 Prefork 방식 참고 : MPM prefork 방식은 프로세스:쓰레드 = 1:1 방식 Worker 방식은 프로세스:쓰레드 = 1:n 방식 아파치 컴파일된 셋팅값 조회 # /usr/local/apache/bin/apachectl -V 설정 Httpd.conf 에서 /conf/extra/httpd-mpm.conf 을 Include 처리 (리마크 제외) 하고 Httpd-mpm.conf 파일을 열고 지시자 변경

[root@web1 bin]# ./apachectl -V

Server version: Apache/2.4.37 (Unix)
Server built:   Dec 20 2018 17:37:42
Server's Module Magic Number: 20120211:83
Server loaded:  APR 1.6.5, APR-UTIL 1.6.1
Compiled using: APR 1.6.5, APR-UTIL 1.6.1

Architecture:   64-bit

Server MPM:    <strong> event</strong>
  threaded:     yes (fixed thread count)
    forked:     yes (variable process count)

Server compiled with....
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_SYSVSEM_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D DYNAMIC_MODULE_LIMIT=256
-D HTTPD_ROOT="/opt/web/apache2"
-D SUEXEC_BIN="/opt/web/apache2/bin/suexec"
-D DEFAULT_PIDLOG="logs/httpd.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="conf/mime.types"
-D SERVER_CONFIG_FILE="conf/httpd.conf"

[root@web1 bin]# ./apachectl -V

Server version: Apache/2.4.37 (Unix)

Server built: Dec 20 2018 17:37:42

Server's Module Magic Number: 20120211:83

Server loaded: APR 1.6.5, APR-UTIL 1.6.1

Compiled using: APR 1.6.5, APR-UTIL 1.6.1

Architecture: 64-bit

Server MPM: <strong> event</strong>

threaded: yes (fixed thread count)

forked: yes (variable process count)

Server compiled with....

-D APR_HAS_SENDFILE

-D APR_HAS_MMAP

-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)

-D APR_USE_SYSVSEM_SERIALIZE

-D APR_USE_PTHREAD_SERIALIZE

-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT

-D APR_HAS_OTHER_CHILD

-D AP_HAVE_RELIABLE_PIPED_LOGS

-D DYNAMIC_MODULE_LIMIT=256

-D HTTPD_ROOT="/opt/web/apache2"

-D SUEXEC_BIN="/opt/web/apache2/bin/suexec"

-D DEFAULT_PIDLOG="logs/httpd.pid"

-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"

-D DEFAULT_ERRORLOG="logs/error_log"

-D AP_TYPES_CONFIG_FILE="conf/mime.types"

-D SERVER_CONFIG_FILE="conf/httpd.conf"

위의 MPM방법은 event 방식이다 여기에 맞는 설정값을 변경해야 한다. MaxRequestWorkers 을 변경한다.

#<IfModule mpm_event_module>
# StartServers 3
# MinSpareThreads 75
# MaxSpareThreads 250
# ThreadsPerChild 25
# MaxRequestWorkers 400
# MaxConnectionsPerChild 0
#</IfModule>

<IfModule mpm_event_module>
StartServers 8
ServerLimit 16
MinSpareThreads 64
MaxSpareThreads 256
ThreadsPerChild 64
<strong>MaxRequestWorkers 1024</strong>
MaxConnectionsPerChild 0
</IfModule>

#<IfModule mpm_event_module>

# StartServers 3

# MinSpareThreads 75

# MaxSpareThreads 250

# ThreadsPerChild 25

# MaxRequestWorkers 400

# MaxConnectionsPerChild 0

#</IfModule>

StartServers 8

ServerLimit 16

MinSpareThreads 64

MaxSpareThreads 256

ThreadsPerChild 64

<strong>MaxRequestWorkers 1024</strong>

MaxConnectionsPerChild 0

</IfModule>

2.Tomcat 의 경우 Server.xml에 maxThreads를 확인해서 숫자를 늘린다.

8 01 2020

오라클 시작 과 종료

Haeng Ho Kang | OS, DataBase, Linux/Unix, Oracle

1. 1.su – oracle sqlplus ‘/as sysdba’ SQL>startup SQL> exit oracle>lsnrctl start

3 08 2019

Centos 7 Maven Install

Haeng Ho Kang | OS, Linux/Unix

CentOS 7 maven 설치 1. 다운로드 $ cd 다운로드 위치 $ wget http://www.gtlib.gatech.edu/pub/apache/maven/maven-3/3.6.1/binaries/apache-maven-3.6.1-bin.tar.gz $ sudo tar xzf apache-maven-3.6.1-bin.tar.gz 2. 전역 환경 설정 $ sudo vi /etc/profile.d/maven.sh export M2_HOME=/xxxx/apache-maven-3.6.1 export PATH=${M2_HOME}/bin:${PATH} $ source /etc/profile.d/maven.sh 3. 버젼 확인 $ mvn -version Apache Maven 3.6.1 (d66c9c0b3152b2e69ee9bac180bb8fcc8e6af555; 2019-04-05T04:00:29+09:00) Maven home: /xxxx/apache-maven-3.6.1 Java version: 1.8.0_212, vendor: Oracle Corporation, runtime: /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.212.b04-0.el7_6.x86_64/jre Default […]

3 08 2018

CentOS – How to set SWAP Memory

Haeng Ho Kang | OS, Linux/Unix | 0

[root@nuriware bin]# dd if=/dev/zero of=/root/swapfile bs=1024 count=5000000

5000000+0 records in

5000000+0 records out

5120000000 bytes (5.1 GB) copied, 25.8677 s, 198 MB/s

[root@nuriware bin]# dd if=/dev/zero of=/root/swapfile bs=1024 count=5000000

5000000+0 records in

5000000+0 records out

5120000000 bytes (5.1 GB) copied, 25.8677 s, 198 MB/s

[root@nuriware bin]# chmod 600 /root/swapfile

1	[root@nuriware bin]# chmod 600 /root/swapfile

[root@nuriware bin]# mkswap /root/swapfile

mkswap: /root/swapfile: warning: don't erase bootbits sectors

        on whole disk. Use -f to force.

Setting up swapspace version 1, size = 4999996 KiB

no label, UUID=ad13ad1b-8f68-42f9-affe-0556f9541342

[root@nuriware bin]# mkswap /root/swapfile

mkswap: /root/swapfile: warning: don't erase bootbits sectors

on whole disk. Use -f to force.

Setting up swapspace version 1, size = 4999996 KiB

no label, UUID=ad13ad1b-8f68-42f9-affe-0556f9541342

[root@nuriware bin]# swapon /root/swapfile

1	[root@nuriware bin]# swapon /root/swapfile

[root@nuriware bin]# swapon /root/swapfile

[root@nuriware bin]# free -m

             total       used       free     shared    buffers     cached

Mem:         32080      31722        357       8371        329      12158

-/+ buffers/cache:      19234      12845

Swap:         4882          0       4882

[root@nuriware bin]# swapoff /root/swapfile

[root@nuriware bin]# free -m

             total       used       free     shared    buffers     cached

Mem:         32080      31729        350       8371        330      12158

-/+ buffers/cache:      19241      12838

Swap:            0          0          0

[root@nuriware bin]# swapon /root/swapfile

[root@nuriware bin]# free -m

total used free shared buffers cached

Mem: 32080 31722 357 8371 329 12158

-/+ buffers/cache: 19234 12845

Swap: 4882 0 4882

[root@nuriware bin]# swapoff /root/swapfile

[root@nuriware bin]# free -m

total used free shared buffers cached

Mem: 32080 31729 350 8371 330 12158

-/+ buffers/cache: 19241 12838

Swap: 0 0 0

swap delete

[root@nuriware bin]# swapoff /root/swapfile

[root@nuriware bin]# free -m

             total       used       free     shared    buffers     cached

Mem:         32080      31729        350       8371        330      12158

-/+ buffers/cache:      19241      12838

Swap:            0          0          0

[root@nuriware bin]# rm /root/swapfile

rm: remove 일반 파일 `/root/swapfile'? y

[root@nuriware bin]#

[root@nuriware bin]# swapoff /root/swapfile

[root@nuriware bin]# free -m

total used free shared buffers cached

Mem: 32080 31729 350 8371 330 12158

-/+ buffers/cache: 19241 12838

Swap: 0 0 0

[root@nuriware bin]# rm /root/swapfile

rm: remove 일반 파일 `/root/swapfile'? y

[root@nuriware bin]#

reboot : setting

[root@nuriware bin]# vi /etc/rc.local

1	[root@nuriware bin]# vi /etc/rc.local

#!/bin/sh

#

# This script will be executed *after* all the other init scripts.

# You can put your own initialization stuff in here if you don't

# want to do the full Sys V style init stuff.

touch /var/lock/subsys/local

swapon /root/swapfile

#!/bin/sh

# This script will be executed *after* all the other init scripts.

# You can put your own initialization stuff in here if you don't

# want to do the full Sys V style init stuff.

touch /var/lock/subsys/local

swapon /root/swapfile

14 08 2017

GPKI 인증서 작성(Linux/Unix)

Haeng Ho Kang | OS, Linux/Unix | 0

실행환경 openssl이 설치된 서버에서 또는 설치방법 1.CentOS설치 2.윈도우설치 key 파일생성

[root@www.nuriware.com file_20170814-2]# openssl genrsa -des3 -out abc.key 2048

1	[root@www.nuriware.com file_20170814-2]# openssl genrsa -des3 -out abc.key 2048

CSR파일생성 – (*.p7b파일 다운받기위한 파일) – 먼저 openssl.cnf를 수정하여 디폴트값이 아닌것은 주석처리한다.

[root@www.nuriware.com file_20170814-2]#  openssl req -new -key abc.key -out abc.csr

1	[root@www.nuriware.com file_20170814-2]# openssl req -new -key abc.key -out abc.csr

p7b파일을 다운받는다 – (gpki.go.kr) 생성된 CSR 파일내용을 복사해서 넣고 임시비빌번호를 요청하고(한번 발급받으면 임시비밀번호는 동일) 등록하면 p7b파일다운이 됩니다. pem파일생성

[root@www.nuriware.com file_20170814-2]# openssl pkcs7 -in nuriware.eseoul.go.kr.p7b -out abc.pem -print_certs -text

1	[root@www.nuriware.com file_20170814-2]# openssl pkcs7 -in nuriware.eseoul.go.kr.p7b -out abc.pem -print_certs -text

pfx파일을 생성해본다.

[root@www.nuriware.com file_20170814-2]# openssl pkcs12 -export -name nuriware.eseoul.go.kr -in abc.pem -inkey abc.key -out cert.pfx

1	[root@www.nuriware.com file_20170814-2]# openssl pkcs12 -export -name nuriware.eseoul.go.kr -in abc.pem -inkey abc.key -out cert.pfx

certpfx가 생성되면 절차대로 됨

11 07 2017

SimpleCaptcha(캡차)의 Unix,Linux에서 sun.awt.X11GraphicsEnvironment 에러

Haeng Ho Kang | OS, Linux/Unix | 0

윈도우에서 잘돌아 가는 SimpleCaptcha가 Unix/Linux 서버에서 에러가 날 경우

java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment

1	java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment

이 경우 Tomcat의 경우 catalina.sh 파일 제일위에 -Djava.awt.headless=true

CATALINA_OPTS="-Djava.awt.headless=true"

1	CATALINA_OPTS="-Djava.awt.headless=true"

제우스 같은 경우는 config 디렉토리 디벼보면 JEUSMain.xml 파일이 있는데 요걸 바로 수정해 주거나 아니면 webadmin 을 이용해서 수정해 주면 된다.

<jeus-system xmlns="http://www.tmaxsoft.com/xml/ns/jeus">
    <node>
        ...
        ...
        <engine-container>
            <name>testContainer</name>
            <id>121</id>
            <base-port>11011</base-port>
            <command-option>-Xms256m -Xmx512m -Djava.awt.headless=true</command-option>
            <engine-command>
                <type>servlet</type>
                <name>test</name>
            </engine-command>
            <sequential-start>true</sequential-start>
        </engine-container>
        ...
        ...
</jeus-system>

<jeus-system xmlns="http://www.tmaxsoft.com/xml/ns/jeus">

<node>

...

<engine-container>

<name>testContainer</name>

<base-port>11011</base-port>

<command-option>-Xms256m -Xmx512m -Djava.awt.headless=true</command-option>

<engine-command>

<type>servlet</type>

</engine-command>

<sequential-start>true</sequential-start>

</engine-container>

...

</jeus-system>

출처: http://stove99.tistory.com/166 [스토브 훌로구] 아래 링크 설정파일 변경 적용의 예 1.3.3 – Configuring options and paths for Tomcat Configure the setenv.sh file […]

17 05 2017

Mac 다양한 팁

Haeng Ho Kang | OS, Linux/Unix | 0

Mac의 Finder에서 환경파일또는 .으로 시작하는 파일이 안보이는데 이걸 보이게 하는 명령어는 Terminal에서

$defaults write com.apple.finder AppleShowAllFiles -bool true

1	$defaults write com.apple.finder AppleShowAllFiles -bool true

또는 false하면 된다. 그리고 적용하기 위해서는 재시작또는 재로그인하면 됩니다. Terminal 을 이용하여 ssh접속 $ssh -p port 계정@아이피(도메인)

$ssh -p 1111 abc@blog.nuriware.com

1	$ssh -p 1111 abc@blog.nuriware.com

scp order : File upload scp -P [remote port] [local file] [remote server]:[remote folder path]

scp -P 1111 ROOT.war abc@blog.nuriware.com:/application/webapps/

1	scp -P 1111 ROOT.war abc@blog.nuriware.com:/application/webapps/

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