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tutorial:adm:server_preparation_tmp [2020/03/11 13:45]
urbanl [Apache Tomcat configuration] 		tutorial:adm:server_preparation_tmp [2020/03/12 14:52]
urbanl [mod_security configuration - Debian]
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-<note important>temp pro centos 8+<note important>Instalation pro centos 8
  
 Author: Ludek Urban Author: Ludek Urban
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 ===== Instalation and software configuration ===== ===== Instalation and software configuration =====
-Prerequisities - Basic installation of CentOS 7+Prerequisities - Basic installation of CentOS 8
 <code bash> <code bash>
 # EPEL installation # EPEL installation
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 yum install -y epel-release yum install -y epel-release
 yum update -y yum update -y
 +# check installed packages. It's recommanded to have them installed.
 +yum list installed  net-tools nano wget  vim-enhanced bzip2 bash-completion lsof zip unzip psmisc policycoreutils-python-utils
 # other recommended packages installation # other recommended packages installation
-yum install -y net-tools nano wget mc vim-enhanced screen sysstat bzip2 ssmtp bash-completion lsof haveged nmap zip unzip psmisc telnet policycoreutils-python+yum install -y mc haveged nmap screen sysstat telnet
 # enable haveged after OS start # enable haveged after OS start
 systemctl start haveged.service systemctl start haveged.service
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 </code> </code>
  
--!CHANGED +===== PostgreSQL  =====
-When installing to centos8, check and install these packages: +
-<code> +
-# check installed packages. It's recommanded to have them installed. +
-yum list installed  net-tools nano wget  vim-enhanced bzip2 bash-completion lsof zip unzip psmisc policycoreutils-python-utils +
-# other recommended packages installation +
-yum install -y mc haveged nmap screen sysstat telnet +
-</code> +
- +
-When installing on Debian, install these packages: +
-<code> +
-screen dnsutils sysstat lsof haveged nmap tcpdump traceroute tcptraceroute curl iptables-persistent +
-</code> +
-===== PostgreSQL -!CHANGED =====+
 <note tip>If you are install CzechIdM on Sql server, please follow [[tutorial:adm:mssql_database_support|this tutorial]].</note> <note tip>If you are install CzechIdM on Sql server, please follow [[tutorial:adm:mssql_database_support|this tutorial]].</note>
 CentOS8 default repository version of PostgreSQL is 10 but IdM not support that version. In our tutorial, we will install newer version 12. Moreover, we install database data into /data not /var/lib which is the default option. CentOS8 default repository version of PostgreSQL is 10 but IdM not support that version. In our tutorial, we will install newer version 12. Moreover, we install database data into /data not /var/lib which is the default option.
-==== Database server installation - CentOS8 -!CHANGED ====+==== Database server installation - CentOS8 ====
   * Software installation on CentOS8(versions can vary):   * Software installation on CentOS8(versions can vary):
  
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 </code> </code>
  
-==== Database server installation - Debian Stretch ==== + 
-Install the database from OS packages: +==== DB server configuration ====
-<code> +
-apt-get install postgresql-9.6 +
-</code> +
-We will move the database - create directory structure: +
-<code> +
-mkdir -p /data/pgsql/9.6/data/ +
-chown -R postgres:postgres /data/pgsql/ +
-chmod -R 700 /data/pgsql +
-</code> +
-Create the file .bash\_profile in postgres user's home (default /var/lib/postgresql) with following contents: +
-<code> +
-PGDATA=/data/pgsql/9.6/data +
-</code> +
-Stop the database: +
-<code> +
-systemctl stop postgresql +
-</code> +
-Move database directory (run this as root): +
-<code> +
-mv /var/lib/postgresql/9.6/main/* /data/pgsql/9.6/data/ +
-</code> +
-In the PostgreSQL configuration file /etc/postgresql/9.6/main/postgresql.conf set the data\_directory property to: +
-<code> +
-data_directory = '/data/pgsql/9.6/data' +
-</code> +
-Enable and start the database: +
-<code> +
-systemctl start postgresql +
-systemctl enable postgresql +
-</code> +
-==== DB server configuration -!CHANGED ====+
  
 First of all, enable the password authentication. First of all, enable the password authentication.
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 <note>If you install the database to a different server than the CzechIdM application itself (Tomcat etc.), don't forget to configure PostgreSQL to allow remote SSL connection from that server.</note> <note>If you install the database to a different server than the CzechIdM application itself (Tomcat etc.), don't forget to configure PostgreSQL to allow remote SSL connection from that server.</note>
  
-===== Java - CentOS8 -! CHANGED =====+===== Java - CentOS8 =====
  
 Java must be installed before Tomcat start. It is recommended to use OpenJDK (at least 1.11) from standard OS repository. Java must be installed before Tomcat start. It is recommended to use OpenJDK (at least 1.11) from standard OS repository.
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 </file> </file>
  
-===== Java - Debian ===== 
- 
-Java must be installed before Tomcat start. It is recommended to use OpenJDK (at least 1.8) from standard OS repository. 
- 
-Installation: 
-<code bash> 
-apt-get install openjdk-8-jdk-headless openjdk-8-jre-headless 
-</code> 
- 
-Then create the file ''/etc/profile.d/java.sh'' with following: 
-<file bash java.sh> 
-[ -d /usr/lib/jvm/java-1.8.0-openjdk-amd64 ] && export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-amd64 
-</file> 
  
 ===== Tomcat ===== ===== Tomcat =====
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 It is advised to follow these steps for production usage: It is advised to follow these steps for production usage:
  
-  * Remove unnecessary aplications that comes with Tomcat:+  * Remove unnecessary applications that comes with Tomcat:
  
 <code bash> <code bash>
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 </code> </code>
 -! CHANGED -! CHANGED
- 
   * Make Tomcat listen only on localhost:   * Make Tomcat listen only on localhost:
     * In the ''/opt/tomcat/current/conf/server.xml'' add the ''address="127.0.0.1"'' property to configuration of ''8080'' port.     * In the ''/opt/tomcat/current/conf/server.xml'' add the ''address="127.0.0.1"'' property to configuration of ''8080'' port.
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 <file txt tomcat> <file txt tomcat>
 /opt/tomcat/current/logs/catalina.out { /opt/tomcat/current/logs/catalina.out {
- rotate COUNT+ rotate 90
  daily  daily
  dateext  dateext
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 <code bash> <code bash>
 yum install -y httpd httpd-tools mod_ssl mod_security mod_security_crs yum install -y httpd httpd-tools mod_ssl mod_security mod_security_crs
-</code> 
- 
-On Debian install those packages and allow modules: 
-<code> 
-apt-get install apache2 libapache2-mod-security2 modsecurity-crs 
-a2enmod ssl 
-a2enmod proxy 
-a2enmod proxy_ajp 
-a2enmod proxy_http 
-a2enmod security2 
-a2enmod rewrite 
-a2enmod headers 
 </code> </code>
  
 HTTPd basic configuration: HTTPd basic configuration:
  
-Change MPM to worker (lower system requirements) - in the file ''/etc/httpd/conf.modules.d/00-mpm.conf'' comment the lines with mod\_mpm\_prefork.so and uncomment mod\_mpm\_worker.so:+Change MPM to worker (lower system requirements) - in the file ''/etc/httpd/conf.modules.d/00-mpm.conf'' comment all lines but mod\_mpm\_worker.so:
  
 <code bash> <code bash>
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   ProxyPreserveHost on   ProxyPreserveHost on
   ProxyAddHeaders on   ProxyAddHeaders on
-  ProxyPass / ajp://127.0.0.1:8009/ +  ProxyPass / ajp://127.0.0.1:8009/ secret=**tomcat_ajp_secret** 
-  ProxyPassReverse / ajp://127.0.0.1:8009/+  ProxyPassReverse / ajp://127.0.0.1:8009/ secret=**tomcat_ajp_secret**
 </code> </code>
  
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 </code> </code>
 <note>In some cases older clients (i.e. IE10 and older, Java6, etc.) will not be able to communicate with IdM. If this is your case, you may need to slacken the cipher settings a bit.</note> <note>In some cases older clients (i.e. IE10 and older, Java6, etc.) will not be able to communicate with IdM. If this is your case, you may need to slacken the cipher settings a bit.</note>
- 
-On Debian, create symlinks to sites-enabled: 
-<code> 
-cd /etc/apache2/sites-enabled 
-ln -s ../sites-available/vhost-redirect.conf 01vhost-redirect.conf 
-ln -s ../sites-available/ssl.conf 02ssl.conf 
-</code> 
  
 Syntax check before httpd restart: Syntax check before httpd restart:
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 </code> </code>
  
 +Allow in SELINUX to httpd connect to network:
 +<code>
 +/usr/sbin/setsebool -P httpd_can_network_connect 1
 +</code>
 + 
 Enable httpd after OS start: Enable httpd after OS start:
 <code bash> <code bash>
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 ===== mod_security configuration ===== ===== mod_security configuration =====
-Mod_security files locations (on CentOS7):+Mod_security files locations (on CentOS8):
  
   * Audit log: ''/var/log/httpd/modsec\_audit.log''   * Audit log: ''/var/log/httpd/modsec\_audit.log''
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 </code> </code>
  
-==== mod_security configuration - CentOS7  ====+==== mod_security configuration - CentOS8  ====
  
-In the file /etc/httpd/modsecurity.d/modsecurity\_crs\_10\_config.conf, find the rule with id=900012 and add support for content\_type=application/json, application/hal+json and text/plain on the line starting with tx.allowed\_request\_content\_type, then allow PUT DELETE and PATCH methods on the line with tx.allowed\_methods. +In the file /etc/httpd/modsecurity.d/activated_rules/REQUEST-901-INITIALIZATION.conf, find the rule 900200 and 900220 then add support for content\_type=application/json, application/hal+json and text/plain on the line starting with tx.allowed\_request\_content\_type, then allow PUT DELETE and PATCH methods on the line with tx.allowed\_methods. 
-Whole rule after the changes looks like this:+Whole rules after the changes looks like this:
  
 <code> <code>
-SecAction \ +# Default HTTP policy: allowed_methods (rule 900200) 
-  "id:'900012', \ +SecRule &TX:allowed_methods "@eq 0" \ 
-  phase:1, \ +    "id:901160,\ 
-  t:none, \ +    phase:1,\ 
-  setvar:'tx.allowed_methods=GET HEAD POST OPTIONS PUT PATCH DELETE', \ +    pass,\ 
-  setvar:'tx.allowed_request_content_type=application/hal+json|application/json|text/plain|application/x-www-form-urlencoded|multipart/form-data|text/xml|application/xml|application/x-amf', \ +    nolog,\ 
-  setvar:'tx.allowed_http_versions=HTTP/0.9 HTTP/1.0 HTTP/1.1', \ +    setvar:'tx.allowed_methods=GET HEAD POST OPTIONS PUT PATCH DELETE'"
-  setvar:'tx.restricted_extensions=.asa/ .asax/ .ascx/ .axd/ .backup/ .bak/ .bat/ .cdx/ .cer/ .cfg/ .cmd/ .com/ .config/ .conf/ .cs/ .csproj/ .csr/ .dat/ .db/ .dbf/ .dll/ .dos/ .htr/ .htw/ .ida/ .idc/ .idq/ .inc/ .ini/ .key/ .licx/ .lnk/ .log/ .mdb/ .old/ .pass/ .pdb/ .pol/ .printer/ .pwd/ .resources/ .resx/ .sql/ .sys/ .vb/ .vbs/ .vbproj/ .vsdisco/ .webinfo/ .xsd/ .xsx/', \ +
-  setvar:'tx.restricted_headers=/Proxy-Connection/ /Lock-Token/ /Content-Range/ /Translate/ /via/ /if/', \ +
-  nolog, \ +
-  pass" +
-</code> +
- +
-==== mod_security configuration - Debian ==== +
-Enable mod\_security configuration: +
-<code> +
-cd /etc/modsecurity +
-cp modsecurity.conf-recommended modsecurity.conf +
-</code> +
- +
-Uncomment following rules in the ''/etc/modsecurity/crs/crs-setup.conf'' and change them accordingly (add allowed content types and allowed HTTP methods): +
-<code> +
-SecAction \ +
- "id:900200,\ +
-  phase:1,\ +
-  nolog,\ +
-  pass,\ +
-  t:none,\ +
-  setvar:'tx.allowed_methods=GET HEAD POST OPTIONS PUT PATCH DELETE'"+
  
-SecAction \ +# Default HTTP policy: allowed_request_content_type (rule 900220) 
- "id:900220,\ +SecRule &TX:allowed_request_content_type "@eq 0" \ 
-  phase:1,\ +    "id:901162,\ 
-  nolog,\ +    phase:1,\ 
-  pass,\ +    pass,\ 
-  t:none,\ +    nolog,\ 
-  setvar:'tx.allowed_request_content_type=application/x-www-form-urlencoded|multipart/form-data|text/xml|application/xml|application/x-amf|application/json|text/plain|application/hal+json'"+    setvar:'tx.allowed_request_content_type=application/x-www-form-urlencoded|multipart/form-data|text/xml|application/xml|application/x-amf|application/json|text/plain|application/hal+json'"
 </code> </code>
  
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 The patch of httpd should come soon so the first option is OK too. The patch of httpd should come soon so the first option is OK too.
  
-===== SSO ===== 
  
-If you want to enable SSO to CzechIdM, additional configuration must be done with mod\_auth\_kerb. See [[tutorial:adm:sso_ad_domain#configure_apache_httpd_-_linux|SSO installation guide]] for more details. 
  
-====== nginx as reverse proxy ====== 
  
-In case that you want to use nginx instead of Apache httpd, the configuration is as follows.  
  
-<code ini> 
-server { 
- listen   *:443 ssl http2; 
- server_name  idm.domain.tld; 
- client_max_body_size 1G; 
- ssl on; 
- ssl_certificate      /path/to/fullchain.pem; 
- ssl_certificate_key  /path/to/privkey.pem; 
- gzip on; 
- gzip_proxied any; 
- gzip_types 
-        text/css 
-        text/javascript 
-        text/xml 
-        text/plain 
-        application/javascript 
-        application/x-javascript 
-        application/json; 
- 
- location / { 
- proxy_hide_header X-Frame-Options; 
- add_header X-Frame-Options SAMEORIGIN; 
- proxy_pass http://localhost:8080/; 
- proxy_set_header Host $host; 
- proxy_set_header X-Real-IP $remote_addr; 
- proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
- proxy_set_header X-Forwarded-Proto "https"; 
- proxy_ssl_session_reuse off; 
- proxy_redirect off; 
- 
- # WebSocket support 
- proxy_http_version 1.1; 
-    proxy_set_header Upgrade $http_upgrade; 
-    proxy_set_header Connection "upgrade"; 
- } 
-} 
-</code>