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1、請(qǐng)描述一次完整的http請(qǐng)求處理過(guò)程;
2、httpd所支持的處理模型有哪些,他們的分別使用于哪些環(huán)境。
3、源碼編譯安裝LAMP環(huán)境(基于wordpress程序),并寫(xiě)出詳細(xì)的安裝、配置、測(cè)試過(guò)程。
4、建立httpd服務(wù)器(基于編譯的方式進(jìn)行),要求:
提供兩個(gè)基于名稱的虛擬主機(jī):
(a)www1.stuX.com,頁(yè)面文件目錄為/web/vhosts/www1;錯(cuò)誤日志為/var/log/httpd/www1.err,訪問(wèn)日志為/var/log/httpd/www1.access;
(b)www2.stuX.com,頁(yè)面文件目錄為/web/vhosts/www2;錯(cuò)誤日志為/var/log/httpd/www2.err,訪問(wèn)日志為/var/log/httpd/www2.access;
(c)為兩個(gè)虛擬主機(jī)建立各自的主頁(yè)文件index.html,內(nèi)容分別為其對(duì)應(yīng)的主機(jī)名;
(d)通過(guò)www1.stuX.com/server-status輸出httpd工作狀態(tài)相關(guān)信息,且只允許提供帳號(hào)密碼才能訪問(wèn)(status:status);
5、為第4題中的第2個(gè)虛擬主機(jī)提供https服務(wù),使得用戶可以通過(guò)https安全的訪問(wèn)此web站點(diǎn);
(1)要求使用證書(shū)認(rèn)證,證書(shū)中要求使用的國(guó)家(CN)、州(HA)、城市(ZZ)和組織(MageEdu);
(2)設(shè)置部門(mén)為Ops,主機(jī)名為www2.stuX.com,郵件為admin@stuX.com;
6、在LAMP架構(gòu)中,請(qǐng)分別以php編譯成httpd模塊形式和php以fpm工作為獨(dú)立守護(hù)進(jìn)程的方式來(lái)支持httpd,列出詳細(xì)的過(guò)程。
1.一次完整的http請(qǐng)求處理過(guò)程:
(1)建立或處理連接:接收請(qǐng)求或拒絕請(qǐng)求;
(2)接收請(qǐng)求:接收來(lái)自于網(wǎng)絡(luò)上的主機(jī)請(qǐng)求報(bào)文中對(duì)某特定資源的一次請(qǐng)求的過(guò)程;
(3)處理請(qǐng)求:對(duì)請(qǐng)求報(bào)文進(jìn)行解析,獲取客戶端請(qǐng)求的資源及請(qǐng)求方法等相關(guān)信息;
(4)訪問(wèn)資源:獲取請(qǐng)求報(bào)文中請(qǐng)求的資源;
(5)構(gòu)建響應(yīng)報(bào)文:
(6)發(fā)送響應(yīng)報(bào)文:
(7)記錄日志:
2.httpd所支持的處理模型有哪些,他們的分別使用于哪些環(huán)境。
prefork:多進(jìn)程模型,每個(gè)進(jìn)程響應(yīng)一個(gè)請(qǐng)求;
一個(gè)主進(jìn)程:負(fù)責(zé)生成子進(jìn)程及回收子進(jìn)程;負(fù)責(zé)創(chuàng)建套接字;負(fù)責(zé)接收請(qǐng)求,并將其派發(fā)給某子進(jìn)程進(jìn)行處理;
n個(gè)子進(jìn)程:每個(gè)子進(jìn)程處理一個(gè)請(qǐng)求;
工作模型:會(huì)預(yù)先生成幾個(gè)空閑進(jìn)程,隨時(shí)等待用于響應(yīng)用戶請(qǐng)求;最大空閑和最小空閑
worker:多進(jìn)程多線程模型,每線程處理一個(gè)用戶請(qǐng)求;
一個(gè)主進(jìn)程:負(fù)責(zé)生成子進(jìn)程;負(fù)責(zé)創(chuàng)建套接字;負(fù)責(zé)接收請(qǐng)求,并將其派發(fā)給某子進(jìn)程進(jìn)行處理;
多個(gè)子進(jìn)程:每個(gè)子進(jìn)程負(fù)責(zé)生成多個(gè)線程;
每個(gè)線程:負(fù)責(zé)響應(yīng)用戶請(qǐng)求;
并發(fā)響應(yīng)數(shù)量:m*n
m:子進(jìn)程數(shù)量
n:每個(gè)子進(jìn)程所能創(chuàng)建的最大線程數(shù)量;
event:事件驅(qū)動(dòng)模型,多進(jìn)程模型,每個(gè)進(jìn)程響應(yīng)多個(gè)請(qǐng)求;
一個(gè)主進(jìn)程 :負(fù)責(zé)生成子進(jìn)程;負(fù)責(zé)創(chuàng)建套接字;負(fù)責(zé)接收請(qǐng)求,并將其派發(fā)給某子進(jìn)程進(jìn)行處理;
子進(jìn)程:基于事件驅(qū)動(dòng)機(jī)制直接響應(yīng)多個(gè)請(qǐng)求;
3.源碼編譯安裝LAMP環(huán)境(基于wordpress程序),并寫(xiě)出詳細(xì)的安裝、配置、測(cè)試過(guò)程。
以centos6.5環(huán)境安裝httpd2.4.9,php5.4.26,通用二進(jìn)制mariadb5.5.36,具體安裝如下:
(1).編譯安裝httpd2.4.9
安裝httpd-2.4,依賴于apr-1.4+,apr-util-1.4+, [apr-iconv], apr: apacheportable runtime
首先安裝開(kāi)發(fā)環(huán)境包組:DevelopmentTools, Server Platform Development 開(kāi)發(fā)程序包:pcre-devel
[root@localhost~]# yum groupinstall 服務(wù)器平臺(tái)開(kāi)發(fā) 開(kāi)發(fā)工具
[root@localhostdylan]# tar -xjvf apr-1.5.0.tar.bz2
[root@localhostdylan]# cd apr-1.5.0
[root@localhostapr-1.5.0]# ./configure --prefix=/usr/local/apr
[root@localhostapr-1.5.0]# make && make install ###安裝apr-1.5.0
[root@localhostdylan]# tar -xjvf apr-util-1.5.3.tar.bz2
[root@localhostdylan]# cd apr-util-1.5.3
[root@localhostapr-util-1.5.3]# ./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr
[root@localhostapr-util-1.5.3]# make && make install ###安裝apr-util-1.5.3
###解壓httpd
[root@localhostdylan]# tar -xjvf httpd-2.4.9.tar.bz2
[root@localhostdylan]# cd httpd-2.4.9
###安裝必備包
[root@localhosthttpd-2.4.9]# yum install openssl openssl-devle pcre pcre-devel -y
[root@localhosthttpd-2.4.9]# ./configure --prefix=/usr/local/apache24--sysconfdir=/etc/httpd24 --enable-so--enable-ssl --enable-cgi --enable-rewrite --with-zlib --with-pcre--with-apr=/usr/local/apr --with-apr-util=/usr/local/apr-util--enable-modules=most --enable-mpms-shared=all --with-mpm=prefork
[root@localhosthttpd-2.4.9]# make && make install ###安裝httpd-2.4.9
###編譯安裝完成后把apachectl命令路徑加入PATH中
[root@localhost/]# vim /etc/profile.d/httpd.sh
exportPATH=/usr/local/apache24/bin:$PATH ###添加環(huán)境變量
(2).通用二進(jìn)制格式安裝mariadb-5.5.36-linux-x86_64.tar.gz
首先準(zhǔn)備數(shù)據(jù)目錄:
[root@localhost/]# mkdir -pv /mydata/data
[root@localhost/]# groupadd -r -g 306 mysql ###添加mysql組
[root@localhost/]# useradd -r -g 306 -u 306 mysql ###添加mysql用戶
[root@localhost/]# chown -R mysql.mysql /mydata/data/
安裝配置
[root@localhost/]# tar xf mariadb-5.5.36-linux-x86_64.tar.gz -C /usr/local/ ###解壓至/usr/local目錄
[root@localhost/]# cd /usr/local/
[root@localhostlocal]# ln -sv mariadb-5.5.36-linux-x86_64/ mysql ###鏈接至mysql目錄
[root@localhostlocal]# cd /usr/local/mysql/
[root@localhostmysql]# chown -R root:mysql ./* ###更改屬主屬組
[root@localhostmysql]# scripts/mysql_install_db --user=mysql --datadir=/mydata/data ###創(chuàng)建數(shù)據(jù)
[root@localhostmysql]# cp support-files/my-large.cnf /etc/mysql/my.cnf ###復(fù)制配置文件
[root@localhostmysql]# vim /etc/mysql/my.cnf ###在mysqld配置段中添加
datadir= /mydata/data
skip_name_resolve= ON
innodb_file_per_table= ON
[root@localhostmysql]# cp support-files/mysql.server /etc/init.d/mysqld ###復(fù)制服務(wù)啟動(dòng)配置文件
[root@localhostmysql]# chkconfig --add mysqld ###添加mysqld服務(wù)
[root@localhostmysql]# chkconfig mysqld on ###服務(wù)自啟動(dòng)、
####輸出mysql頭文件至系統(tǒng)頭文件路徑/usr/include;
[root@localhostmysql]# ln -sv /usr/local/mysql/include /usr/include/mysqld
"/usr/include/mysqld"-> "/usr/local/mysql/include"
###輸出mysql庫(kù)文件給系統(tǒng)庫(kù)查找路徑
[root@localhostmysql]# echo '/usr/local/mysql/lib' > /etc/ld.so.conf.d/mysql.conf
[root@localhostmysql]# ldconfig ###系統(tǒng)重載入系統(tǒng)庫(kù)
[root@localhost~]# ldconfig -p |grep mysql ###查看mysql庫(kù)文件讀取
libmysqld.so.18(libc6,x86-64) => /usr/local/mysql/lib/libmysqld.so.18
libmysqld.so(libc6,x86-64) => /usr/local/mysql/lib/libmysqld.so
libmysqlclient_r.so.16(libc6,x86-64) => /usr/lib64/mysql/libmysqlclient_r.so.16
libmysqlclient.so.18(libc6,x86-64) => /usr/local/mysql/lib/libmysqlclient.so.18
libmysqlclient.so.16(libc6,x86-64) => /usr/lib64/mysql/libmysqlclient.so.16
libmysqlclient.so(libc6,x86-64) => /usr/local/mysql/lib/libmysqlclient.so
###修改PATH環(huán)境變量
[root@localhostmysql]# vim /etc/profile.d/mysql.sh
exportPATH=/usr/local/mysql/bin:$PATH
[root@localhostmysql]# . /etc/profile.d/mysql.sh ###重讀配置文件
[root@localhostbin]# mysql_secure_installation ###mysql安全加固 ###運(yùn)行此命令進(jìn)行設(shè)置
(3).編譯安裝php-5.4.26.tar.bz2
[root@localhostdylan]# yum install libxml2-devel libmcrypt-devel bzip2-devel -y
[root@localhostdylan]# tar xf php-5.4.26.tar.bz2
[root@localhostdylan]# cd php-5.4.26
[root@localhostphp-5.4.26]# ./configure --prefix=/usr/local/php --with-mysql=/usr/local/mysql--with-openssl --with-mysqli=/usr/local/mysql/bin/mysql_config--enable-mbstring --with-png-dir --with-jpeg-dir --with-freetype-dir--with-zlib --with-libxml-dir=/usr --enable-xml --enable-sockets--with-apxs2=/usr/local/apache24/bin/apxs --with-mcrypt--with-config-file-path=/etc --with-config-file-scan-dir=/etc/php.d --with-bz2
[root@localhostphp-5.4.26]# make && make install
[root@localhostphp-5.4.26]# cp php.ini-production /etc/php.ini ###復(fù)制php配置文件
[root@localhostphp-5.4.26]# cd /etc/httpd24
[root@localhosthttpd24]# cp httpd.conf{,.backup}
###使httpd能夠識(shí)別php動(dòng)態(tài)資源并能夠提交給httpd的php模塊(引擎),需要編輯httpd的配置文件
[root@localhosthttpd24]# vim httpd.conf
AddTypeapplication/x-compress .Z
AddTypeapplication/x-gzip .gz .tgz
AddTypeapplication/x-httpd-php .php ###添加此項(xiàng),識(shí)別以php結(jié)尾的文件
<IfModuledir_module>
DirectoryIndex index.php index.html ###DirectoryIndex添加index.php,可識(shí)別此類為主頁(yè)
</IfModule>
(4)安裝wordpress-4.7.4-zh_CN.tar.gz
[root@localhostdylan]# tar -xf wordpress-4.7.4-zh_CN.tar.gz -C /usr/local/apache24/htdocs/
[root@localhosthtdocs]# cd /usr/local/apache24/htdocs/wordpress/
[root@localhostwordpress]# cp wp-config-sample.php wp-config.php ###復(fù)制配置文件
[root@localhostwordpress]# mysql -uroot -p123456
MariaDB[(none)]> create database wpdb; ###創(chuàng)建wpdb數(shù)據(jù)庫(kù)
QueryOK, 1 row affected (0.06 sec)
MariaDB[(none)]> grant all on wpdb.* to "wp"@"192.168.%.%"identified by "wordpress"; ###授權(quán)用戶
QueryOK, 0 rows affected (0.04 sec)
define('DB_NAME','wpdb');
[root@localhostwordpress]# vim wp-config.php ###編輯配置信息
/**WordPress數(shù)據(jù)庫(kù)的名稱 */
define('DB_NAME','wpdb');
/**MySQL數(shù)據(jù)庫(kù)用戶名 */
define('DB_USER','wp');
/**MySQL數(shù)據(jù)庫(kù)密碼 */
define('DB_PASSWORD','wordpress');
/**MySQL主機(jī) */
define('DB_HOST','192.168.0.113');
[root@localhostwordpress]# apachectl restart
打開(kāi)頁(yè)面顯示
填入信息后顯示
至此,安裝完成。
4、建立httpd服務(wù)器(基于編譯的方式進(jìn)行),要求: 提供兩個(gè)基于名稱的虛擬主機(jī):
(a)www1.stuX.com,頁(yè)面文件目錄為/web/vhosts/www1;錯(cuò)誤日志為/var/log/httpd/www1.err,訪問(wèn)日志為/var/log/httpd/www1.access;
(b)www2.stuX.com,頁(yè)面文件目錄為/web/vhosts/www2;錯(cuò)誤日志為/var/log/httpd/www2.err,訪問(wèn)日志為/var/log/httpd/www2.access;
(c)為兩個(gè)虛擬主機(jī)建立各自的主頁(yè)文件index.html,內(nèi)容分別為其對(duì)應(yīng)的主機(jī)名;
(d)通過(guò)www1.stuX.com/server-status輸出httpd工作狀態(tài)相關(guān)信息,且只允許提供帳號(hào)密碼才能訪問(wèn)(status:status);
[root@localhost ~]# mkdir -pv/web/vhosts/{www1,www2} ###創(chuàng)建文件目錄
[root@localhost ~]# mkdir -pv/var/log/httpd
[root@localhost ~]# echo"<h2>www1.stuX.com</h2>" > /web/vhosts/www1/index.html ###主頁(yè)文件內(nèi)容
[root@localhost ~]# echo"<h2>www2.stuX.com</h2>" > /web/vhosts/www2/index.html
[root@localhost ~]# vim/etc/httpd24/httpd.conf
#DocumentRoot"/usr/local/apache24/htdocs" ###注釋中心主機(jī)
Include /etc/httpd24/extra/vhost.conf ###添加配置文件
[root@localhost ~]# vim/etc/httpd24/extra/vhost.conf ###配置虛擬主機(jī)
<VirtualHost 192.168.0.113:80>
ServerNamewww1.stux.com
DocumentRoot"/web/vhosts/www1"
ErrorLog"/var/log/httpd/www1.err"
CustomLog"/var/log/httpd/www1.access" combined
<Directory"/web/vhosts/www1">
OptionsNone
AllowOverrideNone
Requireall granted
</Directory>
<Location/server-status>
SetHandlerserver-status
AuthTypeBasic
AuthName"Enter username and password"
AuthUserFile"/etc/httpd24/.htpasswd"
Requireuser status
</Location>
</VirtualHost>
<VirtualHost 192.168.0.113:80>
ServerNamewww2.stux.com
DocumentRoot"/web/vhosts/www2"
ErrorLog"/var/log/httpd/www2.err"
CustomLog"/var/log/httpd/www2.access" combined
<Directory"/web/vhosts/www2">
OptionsNone
AllowOverrideNone
Requireall granted
</Directory>
</VirtualHost>
[root@localhost ~]# htpasswd -c -m/etc/httpd24/.htpasswd status ###生成認(rèn)證文件,第一次加-c
New password:
Re-type new password:
Adding password for user status
[root@localhost ~]# httpd –t ###測(cè)試配置文件
Syntax OK
[root@localhost ~]# apachectl restart ###重啟服務(wù)
測(cè)試:
需配置hosts文件 添加192.168.0.113 www1.stux.com
192.168.0.113 www2.stux.com
測(cè)試status
總結(jié):編譯安裝的2.4虛擬主機(jī)配置文件與2.2有所區(qū)別
對(duì)于基于IP的訪問(wèn)控制做了修改,不再支持使用order, allow, deny這些機(jī)制,而是統(tǒng)一使用require進(jìn)行
基于主機(jī)名的虛擬主機(jī)不再需要NameVirtualHost指令
注意:任意目錄下的頁(yè)面只有顯式授權(quán)才能被訪問(wèn);
5、為第4題中的第2個(gè)虛擬主機(jī)提供https服務(wù),使得用戶可以通過(guò)https安全的訪問(wèn)此web站點(diǎn);
(1)要求使用證書(shū)認(rèn)證,證書(shū)中要求使用的國(guó)家(CN)、州(HA)、城市(ZZ)和組織(MageEdu);
(2)設(shè)置部門(mén)為Ops,主機(jī)名為www2.stuX.com,郵件為admin@stuX.com;
###測(cè)試用,CA與httpd位于同一主機(jī)
###首先,創(chuàng)建私有CA,在服務(wù)器創(chuàng)建證書(shū)簽署請(qǐng)求以及CA簽證
[root@localhost ~]# rpm -q openssl
openssl-1.0.1e-57.el6.x86_64
[root@localhost ~]# (umask 077;opensslgenrsa -out /etc/pki/CA/private/cakey.pem 4096) ###創(chuàng)建私鑰
Generating RSA private key, 4096 bit longmodulus
..........................................................................................
...................................................................................................................++...++
e is 65537 (0x10001)
[root@localhost ~]# openssl req -new -x509-key /etc/pki/CA/private/cakey.pem -out /etc/pk ###生成自簽證書(shū)
i/CA/cacert.pem -days 3650You are about tobe asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what iscalled a Distinguished Name or a DN.
There are quite a few fields but you canleave some blank
For some fields there will be a defaultvalue,
If you enter '.', the field will be leftblank.
-----
Country Name (2 letter code) [XX]:CN
State or Province Name (full name) []:HA
Locality Name (eg, city) [Default City]:ZZ
Organization Name (eg, company) [DefaultCompany Ltd]:MageEdu
Organizational Unit Name (eg, section)[]:Ops
Common Name (eg, your name or your server'shostname) []:ca.stuX.com
Email Address []:admin@stuX.com
[root@localhost ~]# touch/etc/pki/CA/index.txt ###為CA提供輔助文件
[root@localhost ~]# echo 01>/etc/pki/CA/serial
[root@localhost ~]# mkdir /etc/httpd24/ssl
[root@localhost ~]# cd /etc/httpd24/ssl/
[root@localhost ssl]# (umask 077;opensslgenrsa -out /etc/httpd24/ssl/httpd.key 2048) ###httpd主機(jī)生成私鑰
Generating RSA private key, 2048 bit longmodulus
.........+++
.................+++
e is 65537 (0x10001)
###httpd生成證書(shū)簽署請(qǐng)求
[root@localhost ssl]# openssl req -new -key/etc/httpd24/ssl/httpd.key -out /etc/httpd24/ssl/httpd.csr -days 365
You are about to be asked to enterinformation that will be incorporated
into your certificate request.
What you are about to enter is what iscalled a Distinguished Name or a DN.
There are quite a few fields but you canleave some blank
For some fields there will be a defaultvalue,
If you enter '.', the field will be leftblank.
-----
Country Name (2 letter code) [XX]:CN
State or Province Name (full name) []:HA
Locality Name (eg, city) [Default City]:ZZ
Organization Name (eg, company) [DefaultCompany Ltd]:MageEdu
Organizational Unit Name (eg, section)[]:Ops
Common Name (eg, your name or your server'shostname) []:www2.stuX.com
Email Address []:admin@stuX.com
Please enter the following 'extra'attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:
###因同屬一臺(tái)主機(jī)測(cè)試,故直接簽署證書(shū)
[root@localhost ssl]# openssl ca -in/etc/httpd24/ssl/httpd.csr -out /etc/pki/CA/certs/httpd.crt -days 365Usingconfiguration from /etc/pki/tls/openssl.cnf
Check that the request matches thesignature
Signature ok
Certificate Details:
Serial Number: 1 (0x1)
Validity
Not Before: Jun 26 08:04:53 2017 GMT
Not After : Jun 26 08:04:53 2018 GMT
Subject:
countryName = CN
stateOrProvinceName = HA
organizationName =MageEdu
organizationalUnitName = Ops
commonName =www2.stuX.com
emailAddress =admin@stuX.com
X509v3 extensions:
X509v3 Basic Constraints:
CA:FALSE
Netscape Comment:
OpenSSL Generated Certificate
X509v3 Subject Key Identifier:
9B:20:A6:09:86:E1:F2:05:94:D7:ED:33:57:D2:A1:FE:95:C9:3F:47
X509v3 Authority Key Identifier:
keyid:85:26:25:F4:82:7C:86:25:B1:73:B0:C5:57:24:41:86:81:2A:24:FA
Certificate is to be certified until Jun 2608:04:53 2018 GMT (365 days)
Sign the certificate? [y/n]:y
1 out of 1 certificate requests certified,commit? [y/n]y
Write out database with 1 new entries
Data Base Updated
[root@localhost ssl]# cp/etc/pki/CA/certs/httpd.crt /etc/httpd24/ssl/ ###將證書(shū)發(fā)給httpd
###配置httpd支持使用ssl及使用的證書(shū)
[root@localhost ssl]# vim/etc/httpd24/httpd.conf ###編輯httpd配置文件
Include /etc/httpd24/extra/httpd-ssl.conf ###啟用ssl配置文件,去掉#
LoadModule ssl_module modules/mod_ssl.so ###啟用ssl???,去掉#
[root@localhost ssl]# vim/etc/httpd24/extra/httpd-ssl.conf ###編輯ssl配置文件
<VirtualHost _default_:443>
DocumentRoot "/web/vhosts/www2"
ServerName www2.stuX.com
ServerAdmin you@example.com
ErrorLog"/var/log/httpd/www2.ssl.err"
SSLEngine on
SSLCertificateFile"/etc/httpd24/ssl/httpd.crt" ###證書(shū)路徑
SSLCertificateKeyFile"/etc/httpd24/ssl/httpd.key" ###私鑰路徑
<Directory"/web/vhosts/www2">
OPtions None
AllowOverride None
Require all granted
</Directory>
</VirtualHost>
TransferLog"/var/log/httpd/www2.ssl.access"
[root@localhost ssl]# httpd -t ###測(cè)試出現(xiàn)錯(cuò)誤
AH00526: Syntax error on line 73 of/etc/httpd24/extra/httpd-ssl.conf:
SSLSessionCache: 'shmcb' session cache notsupported (known names: ). Maybe you need to lo
ad the appropriate socache module(mod_socache_shmcb?).
[root@localhost ssl]# vim/etc/httpd24/httpd.conf
LoadModule socache_shmcb_modulemodules/mod_socache_shmcb.so ###啟用此模塊,去掉#
[root@localhost ssl]# httpd -t
Syntax OK
[root@localhost ssl]# apachectl restart
測(cè)試
[root@localhost ~]# vim /etc/host ###編輯hosts文件添加httpd主機(jī)Ip
192.168.0.113 www2.stuX.com
[root@localhost ~]# openssl s_client-connect www2.stuX.com:443
6、在LAMP架構(gòu)中,請(qǐng)分別以php編譯成httpd模塊形式和php以fpm工作為獨(dú)立守護(hù)進(jìn)程的方式來(lái)支持httpd,列出詳細(xì)的過(guò)程。(下一篇博客詳細(xì)介紹)
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