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# ãã³ãã³ãã
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rootã¯ç®¡çè æš©éãæã£ãŠãããUnix/Linuxç³»ã®OSãã€ã³ã¹ããŒã«ãããšããã©ã«ãã§å ±éããŠååšããã¢ã«ãŠã³ãã§ãããµãŒããæ»æããåŽãããããšãæåã«ãã°ã€ã³ã詊ã䟡å€ãããã¢ã«ãŠã³ããšãããŸãããããrootã§ã®ãã°ã€ã³ã«æåãããŠããŸã£ããã管çè æš©éãæã£ãŠããããããµãŒãã§å¥œãæŸé¡ãããŠããŸããŸãã
ããã鲿¢ãããããrootã§SSHæ¥ç¶ã§ããªãç¶æ ã«ããŠãããŸãããïŒSSHãã°ã€ã³ã§ããäœæ¥ã¢ã«ãŠã³ããrootãšã¯å¥ã«çšæããããã§ã«rootã§SSHã§ããªãããã«ãªã£ãŠããã°æ¬¡ã®æé ãŸã§é²ãã§ãã ããïŒã
ä»åŸã®SSHãã°ã€ã³ã«äœ¿ãäœæ¥çšã®ã¢ã«ãŠã³ãããæ¬¡ã®ããã«äœæããŸããããã§ã¯ãuser1ããšããã¢ã«ãŠã³ãã远å ããŠããŸãã
# useradd user1
äœæããã¢ã«ãŠã³ãã®ãã¹ã¯ãŒããèšå®ããŸãã
# passwd user1 ãŠãŒã¶ãŒ user1 ã®ãã¹ã¯ãŒãã倿Žã æ°ãããã¹ã¯ãŒã: æ°ãããã¹ã¯ãŒããåå ¥åããŠãã ãã: passwd: ãã¹ãŠã®èªèšŒããŒã¯ã³ãæ£ããæŽæ°ã§ããŸããã
远å ããã¢ã«ãŠã³ãã®å ¬ééµé 眮
äœæããäœæ¥çšã¢ã«ãŠã³ãã§SSHãã°ã€ã³ããããã«ãå ¬ééµãé 眮ããŸãã éµã®çæã¯ãåè¿°ã®ããã«ä»¥åã®èšäºã§è§£èª¬ããŠããã®ã§åç §ããŠãã ããã
.sshãã£ã¬ã¯ããªãããŒããã·ã§ã³700ã§äœæããŸãã
# mkdir -m 700 /home/user1/.ssh
å ¬ééµãé 眮ããŸããäžèšã®èšäºãªã©ãåèã«ãäœæããå ¬ééµãçšæããŸãã
# vim /home/user1/.ssh/authorized_keys
å ¬ééµã®ããŒããã·ã§ã³ã600ã«å€æŽããŸãã
# chmod 600 /home/user1/.ssh/authorized_keys
.sshé äžã®ææè ã倿ŽããŸãã
# chown -R user1:user1 /home/user1/.ssh/
ãããŸã§ã®èšå®ã§ãµãŒãäžã®user1ã®ã¢ã«ãŠã³ããSSHæ¥ç¶ã§ããç¶æ ã«ãªããŸãããuser1ã§SSHãã°ã€ã³ããæ¥ç¶ã§ããããšã確èªããŸãããã
ãªãããã°ã€ã³ããŠããã¢ã«ãŠã³ãã¯ä»¥äžã®ã³ãã³ãã§ç¢ºèªã§ããŸãã
$ whoami user1
sudoãŠãŒã¶ã远å
root以å€ã®ã¢ã«ãŠã³ãã§sudoã䜿ããªãç¶æ ã§ããã°ã䜿ããããã«èšå®ã倿ŽããŸãã
wheelã°ã«ãŒãã«sudoæš©éãã€ããŸãã
# visudo
以äžã®è¡ã«ã³ã¡ã³ãã¢ãŠããã€ããŠããå Žåãã³ã¡ã³ãã¢ãŠããå€ããŠæå¹åããŸãã
# %wheel ALL=(ALL) ALL
ã«ãªã£ãŠããã
%wheel ALL=(ALL) ALL
ã«ããŸãããã
user1ãwheelã°ã«ãŒãã«è¿œå ããŸããsudoãèš±å¯ããã¢ã«ãŠã³ãã®ã¿wheelã«æå±ãããŸãã
# usermod -G wheel user1
ãããŸã§ã®èšå®ã§user1ã§sudoãå®è¡ã§ããããã«ãªããŸããã詊ãã«user1ã§ãã°ã€ã³ããsudoã䜿ããã確èªããŸãã
ãã°ã€ã³ããŠããã¢ã«ãŠã³ãã確èªããŸãã
$ whoami user1
sudoã䜿ããã確èªããŸããããããã§ãšã©ãŒã«ãªããªããã°ãç¡äºã«sudoæš©éãä»äžãããŠããŸãã
$ sudo pwd [sudo] password for user1: /home/user1
以éã®æé ã¯ãrootã§ã¯ãªããäœæ¥çšã¢ã«ãŠã³ãã§äœæ¥ã§ããŸãã
rootã§ã®SSHãã°ã€ã³ãå¶é
ã»ãã¥ãªãã£å¯Ÿçã®é¢ãããrootã§ã¯SSHæ¥ç¶ã§ããªãããã«å¶éããŸãã
SSHã®èšå®ã倿ŽããŸãããã
$ sudo vim /etc/ssh/sshd_config
PermitRootLoginãnoã«å€æŽããŸãã
#PermitRootLogin yes
PermitRootLogin no
sshdãåèµ·åããŠèšå®ãåæ ããŸãããã
$ sudo service sshd restart Redirecting to /bin/systemctl restart sshd.service
ãã®æ®µéã§rootã§SSHæ¥ç¶ããããšãããš Permission denied (publickey,gssapi-keyex,gssapi-with-mic). ã§æ¥ç¶æåŠãããŸãã
2. Apacheãã€ã³ã¹ããŒã«ããéçºã®ããã«BasicèªèšŒã远å ãã
次ã«ãApacheãã€ã³ã¹ããŒã«ããŠWebãµãŒãã皌åãããŸãããã ãããŸã æ§ç¯äžã§å ¬éã¯ããããªãã®ã§ãBasicèªèšŒãèšå®ããŸãã
Apacheã€ã³ã¹ããŒã«
ãŸãã¯ããã±ãŒãžãã€ã³ã¹ããŒã«ããŸãã
$ sudo yum -y install httpd
Apacheã®ããŒãžã§ã³ã確èªããŸãããïŒapachectlãŸãã¯httpdã³ãã³ãã® -version ãªãã·ã§ã³ã§ç¢ºèªã§ããŸãïŒã
$ apachectl -version Server version: Apache/2.4.6 (CentOS) Server built: Nov 14 2016 18:04:44
Apacheãèµ·åããŸãã
$ service httpd start or $ apachectl start
http://ãµãŒãã®IPã¢ãã¬ã¹ãŸãã¯ãã¡ã€ã³/ ã«ã¢ã¯ã»ã¹ãïŒã¯ã©ãŠãã®IPã¢ãã¬ã¹ããã¡ã€ã³ã¯ãµãŒãã¹ã®ã³ã³ãããŒã«ããã«ãªã©ã§ç¢ºèªããŠãã ããïŒãApache HTTP Server Test Pageã衚瀺ãããããšã確èªããŸãã
WebããŒãžã«BasicèªèšŒã远å
次ã«ãéçºäžã®ç»é¢ãéå ¬éã«ããããã«BasicèªèšŒã远å ããŸãã
èªèšŒçšã®ã¢ã«ãŠã³ãã»ãã¹ã¯ãŒããçæããŸãããpasswordãã®éšåã«ã¯é©åœãªãã¹ã¯ãŒããæå®ããŠãã ããã
$ sudo htpasswd -c -b /etc/httpd/conf/.htpasswd user1 ãpasswordã [sudo] password for user1: Adding password for user user1
BasicèªèšŒã®èšå®ã远å ããŸãã
$ sudo vim /etc/httpd/conf/httpd.conf
以äžã®èšå®ã远å ããŸãããã
<Directory "/var/www/html/"> AuthUserFile /etc/httpd/conf/.htpasswd AuthGroupFile /dev/null AuthName "Basic Auth" AuthType Basic Require valid-user </Directory>
Apacheãåèµ·åããŠèšå®ãåæ ãããŸãã
$ service httpd restart or $ apachectl restart
ããã§å ã»ã©ã®ããŒãžã«ã¢ã¯ã»ã¹ãããšãèšå®ãããŠãŒã¶åãšãã¹ã¯ãŒãããªããšé²èЧã§ããªãç¶æ ã«ãªã£ãŠããŸãã
Apacheã®èªåèµ·åèšå®
èªåèµ·åãONã«èšå®ããŠãããšãOSåèµ·åæãªã©ã«Apacheãèªåã§èµ·åã§ããŸãã
$ chkconfig httpd on
確èªã¯ä»¥äžã®ã³ãã³ãã§å¯èœã§ãã
$ systemctl is-enabled httpd enabled
3. Apacheã§PHPã䜿ããããã«ãã
Apacheã§PHPã䜿ããããã«ããŸããåºæ¬çã«ã¯ã以äžã®ããã«ããã±ãŒãžãã€ã³ã¹ããŒã«ããã ãã§ãèšå®ãŸã§å®äºããç¶æ ã«ãªããŸãã
$ sudo yum -y install php
$ service httpd restart
ãã®æ®µéã§ã詊ãã«PHPãã¡ã€ã«ãããã¥ã¡ã³ãã«ãŒãïŒ/var/www/html/ïŒã«é
眮ããŠã¿ãŸãããã
$ sudo vim /var/www/html/test.php
<?php echo "Hello World";
ãã®ç¶æ
ã§ http://ãµãŒãã®IPã¢ãã¬ã¹ãŸãã¯ãã¡ã€ã³/test.php ã«ã¢ã¯ã»ã¹ãããšããHello Worldããšè¡šç€ºãããŸãã
ããã§ãApacheäžã§PHPãåäœãããããšãã§ããããã«ãªããŸããããã®ç°å¢ã䜿ã£ãŠPHPã®ããã°ã©ã ãæžããŠããã°ãWebãµãŒãã¹ãéçºã»å ¬éã§ããŸãã
PHP以å€ã®èšèªãå©çšããããšãã«ã¯ãããããã®èšèªã«å¿ èŠãªããã±ãŒãžãã€ã³ã¹ããŒã«ããŠãèšå®ããŸããããä»ã®èšèªã䜿ããããšãã«ããç°¡åã«ç°å¢ãçšæã§ããŸãã
ãããã«
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æåã¯ãªããªãã³ãã³ãã®æå³ãåãããªãã£ãããäœãåå ã§æãéãã®åããããªãã®ã調ã¹ããããã®ã«èŠåŽãããããããŸããããããããã©ã€ïŒãšã©ãŒã§æ £ããã®ã倧åã§ãããã®ããã«ããç°¡åãªãã®ãã詊ããŠã¿ãŠããµãŒãããããã®ã£ãŠé¢çœãããããšæããŠããã ããã°å¹žãã§ãã
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