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7.2 SysV init systemd 7.2.1 systemd SysV init 1 systemd service target mount swap device 7.2.2 systemd systemctl service Web systemctl systemctl start # systemctl start httpd www.lpi.or.jp 198 (C) LPI-Japan
7 CentOS 7 systemctl status systemd cgroup <strong>Linux</strong> cgroup CPU # systemctl status httpd httpd.service - The Apache HTTP Server Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled) Active: active (running) since 2015-01-28 15:23:50 JST; 33s ago Main PID: 2926 (httpd) Status: "Total requests: 0; Current requests/sec: 0; Current traffic: 0 B/sec" CGroup: /system.slice/httpd.service 2926 /usr/sbin/httpd -DFOREGROUND 2927 /usr/sbin/httpd -DFOREGROUND 2928 /usr/sbin/httpd -DFOREGROUND 2929 /usr/sbin/httpd -DFOREGROUND 2930 /usr/sbin/httpd -DFOREGROUND 2931 /usr/sbin/httpd -DFOREGROUND 1 28 15:23:50 centos7.example.com httpd[2926]: AH00557: httpd: apr_socka d... 1 28 15:23:50 centos7.example.com httpd[2926]: AH00558: httpd: Could not ... 1 28 15:23:50 centos7.example.com systemd[1]: Started The Apache HTTP Se r... Hint: Some lines were ellipsized, use -l to show in full. systemctl restart # systemctl restart httpd # systemctl status httpd httpd.service - The Apache HTTP Server www.lpi.or.jp 199 (C) LPI-Japan
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Linux LPI-Japan 2015-04-16
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7 Linux Linux Linux OS Red
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LPIC Linux Web 1 1 W
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sato • 1 • 2 • 3
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i . . . . . . . . . . . . . . . .
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2.2 network NetworkManager . . . .
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4.1.10 umask . . . . . . . . . . .
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6.3.1 . . . . . . . . . . . . . .
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1.1 fined_r:unconfined_t:s0-s0:c0.
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1.1 # passwd suzuki suzuki : su
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1.2 1.2.1 1 () # id suzuki ui
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1.2 # id suzuki uid=501(suzuki) gi
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1.3 $ ll 0 -rw-rw-r--. 1 suzuki s
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1.3 $ chmod u-x testdir $ ls -l
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1.3 Account expires : never Minimu
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1.3 drwx------. 26 sato sato 4096
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1.4 SSH 1.4.2 SSH CentOS OpenSSH
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1.4 SSH RX packets:19972 errors:0
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1.4 SSH 1.4.8 SSH SSH Linux ssh-
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1.4 SSH ~/.ssh id_rsa.pub id_r
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1.4 SSH authorized_keys SELinux
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1.4 SSH [sshuser@client ~]$ ssh ss
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1.4 SSH 1.1 IP IP SSH OK 2.
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1.4 SSH 1.4 1.4.15 Tera Term T
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1.4 SSH 1.7 From: TeraTerm SSH SC
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1.5 root OpenSSH /etc/ssh/sshd_con
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1.5 root 1.5.3 su su root root
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1.5 root #2) Think before you type
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1.5 root 28608 pts/0 S 0:00 su - h
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2.1 TX packets:45 errors:0 dropped
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2.1 ARP ARP ip neighbor show ar
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2.1 udp 0 0 0.0.0.0:111 0.0.0.0:
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2.1 Transceiver: internal Auto-neg
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2.3 # chkconfig network on # chkco
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2.3 2.3.5 /etc/services /etc/ser
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2.4 iptables NAPT(IP ) IP 1 IP
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2.4 iptables INPUT OUTPUT FORWARD
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2.4 iptables # system-config-firew
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2.5 DHCP 5. system-config-firewa
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2.5 DHCP range 192.168.0.200 192.1
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2.5 DHCP 2.5.8 Windows DHCP Wind
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2.5 DHCP 2.7 TCP/IPv4 4 (TCP/IP
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2.5 DHCP 2.10 IP IP DNS 2.5.9
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3 3.1 OS OS 1. 2. BIOS 3. GRU
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3 timeout=5 splashimage=(hd0,0)/g
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3 ..- 2.6.32-504.el6.x86_64 3
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3 0 1 2 3 4 5 6 0 0 #
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3 3.1.6 runlevel # runlevel N
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3 httpd : [ OK ] httpd # servic
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3 5 rc5.d # ls /etc/rc.d init
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3 3.3 cron Linux cron 3.3.1 c
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3 0-59 0-23 1-31 1-12 0-70
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3 3.3.7 cron crontab -r cron #
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3 # ls /etc/cron.hourly/ 0anacron
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3 #period in days delay in minute
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3 # ntpq -p remote refid st t whe
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3 3.4.6 NTP NTP NTP NTP /etc/
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4.1 # id sato uid=500(sato) gid=50
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4.1 [sato@server ~]$ umask 0002 um
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4.1 /etc/profile # cat /etc/bashr
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4.1 [sato@server ~]$ write suzuki
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4.2 POSIX ACL 4.2.2 ACL ACL getfa
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4.2 POSIX ACL # yum install samba S
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4.2 POSIX ACL 4.2 3. 4.3 sato
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4.2 POSIX ACL Windows samba_acl_te
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4.3 SELinux 4.3 SELinux SELinux Li
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4.3 SELinux /etc/selinux/config SE
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4.3 SELinux 4.3.7 Boolean SELinux
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4.3 SELinux 4.8 Forbidden root /va
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4.4 LVM PV PV 8E Linux /dev/sd
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4.4 LVM lvcreate lvcreate -L -n
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4.4 LVM # df /mnt/LVMtest/ Filesys
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4.5 4.5 4.5.1 CD DVD
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4.5 4.5.5 tar Tape Archiver tar
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4.5 # dd if=/dev/sdb of=/dev/sdc 2
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4.5 -0 0 0 -u /etc/dumpdates
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4.5 efi symvers-2.6.32-504.el6.x86
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5 5.1 Linux Linux Linux 1
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5 enabled 0 yum --enablerepo
Page 165 and 166: 5 ∗ base: ftp.nara.wide.ad.jp
Page 167 and 168: 5 5.1.5 yum Locale LANG yum gro
Page 169 and 170: 5 # ln -s /media/CentOS_6.6_Final
Page 171 and 172: 5 PID USER PR NI VIRT RES SHR S %
Page 173 and 174: 5 5.2.3 vmstat vmstat CPU vmst
Page 175 and 176: 5 # iostat Linux 2.6.32-504.el6.x
Page 177 and 178: 5 dm-0 0.00 0.00 1.17 5.33 41.92
Page 179 and 180: 5 # sar -f /var/log/sa/sa22 Linux
Page 181 and 182: 5 Detail Low0Med5High10 Service
Page 183 and 184: 5 # logwatch --print ############
Page 185 and 186: 6 6.1 OS 6.1.1 CentOS /var/
Page 187 and 188: 6 syslogd 6.1.5 syslog facil
Page 189 and 190: 6 6.1.7 - Y * @ IP UDP
Page 191 and 192: 6 -A INPUT -j REJECT --reject-wit
Page 193 and 194: 6 $ModLoad TCP $InputTCPServerRu
Page 195 and 196: 6 syslogrsyslog ```shell-session
Page 197 and 198: 6 extension .baksome.log some.
Page 199 and 200: 6 prerotate firstaction postrot
Page 201 and 202: 6 • netstat • tcpdump • Wir
Page 203 and 204: 6 6.2.4 tcpdump GUI Wiresh
Page 205 and 206: 6 Wireshark Network Analyzer # wi
Page 207 and 208: 6 6.3 http Filter:httpEnter Hy
Page 209 and 210: 6 1. CentOS DVD BIOS DVD 2. R
Page 211 and 212: 6 6.8 4. /mnt/sysimage Read-On
Page 213 and 214: 6 6.11 shell 7. bash /mnt/sysim
Page 215: 7 CentOS 7 7.1 CentOS 7 CentOS
Page 219 and 220: 7 CentOS 7 7.2.4 systemctl list-
Page 221 and 222: 7 CentOS 7 7.2.8 systemctl enabl
Page 223 and 224: 7 CentOS 7 2. /etc/systemd/system
Page 225 and 226: 7 CentOS 7 1 28 17:29:04 centos7.
Page 227 and 228: 7 CentOS 7 sources: services: dhc
Page 229 and 230: 7 CentOS 7 7.1 GUI NetworkManag
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