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модуль_selinux [2020/07/16 13:55] val [Конфигурация] |
модуль_selinux [2024/04/26 14:33] val |
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| * [[https://max-ko.ru/14-upravlenie-selinux.html|Управление SELinux]] | * [[https://max-ko.ru/14-upravlenie-selinux.html|Управление SELinux]] | ||
| - | * [[http://itstickers.besthw.net/selinux-%D0%B1%D0%BB%D0%BE%D0%BA%D0%B8%D1%80%D1%83%D0%B5%D1%82-zabbix-%D0%B0%D0%B3%D0%B5%D0%BD%D1%82/|SELinux блокирует Zabbix-агент]] | + | * [[https://habr.com/ru/companies/otus/articles/460387/|Руководство для начинающих по SELinux]] |
| - | + | ||
| - | * [[https://docs.fedoraproject.org/ru-RU/Fedora/13/html/Security-Enhanced_Linux/index.html|Security-Enhanced Linux. Linux с улучшенной безопасностью]] | + | |
| * [[https://www.opennet.ru/base/sec/selinux_setup.txt.html|Настройка и использование SELinux (selinux limit security linux mac acl)]] | * [[https://www.opennet.ru/base/sec/selinux_setup.txt.html|Настройка и использование SELinux (selinux limit security linux mac acl)]] | ||
| * [[https://www.ibm.com/developerworks/ru/library/l-se_linux_01/index.html|Часть 1. SELinux - история появления, архитектура и принципы работы]] | * [[https://www.ibm.com/developerworks/ru/library/l-se_linux_01/index.html|Часть 1. SELinux - история появления, архитектура и принципы работы]] | ||
| - | * [[https://wiki.centos.org/TipsAndTricks/SelinuxBooleans|SELinux Booleans]] | + | |
| * [[https://www.server-world.info/en/note?os=CentOS_7&p=selinux&f=11|SELinux : Use sesearch]] | * [[https://www.server-world.info/en/note?os=CentOS_7&p=selinux&f=11|SELinux : Use sesearch]] | ||
| - | * [[http://hansenroy.com/selinux-run-a-command-or-script-in-a-specific-context/|SELinux: Run a command or script in a specific context]] | + | |
| <code> | <code> | ||
| - | # sestatus | + | # sestatus -v |
| # id -Z | # id -Z | ||
| Line 49: | Line 47: | ||
| ===== Добавление сетевых портов к типу (домену) контекста безопасности ===== | ===== Добавление сетевых портов к типу (домену) контекста безопасности ===== | ||
| - | * [[Сервис Firewall#CentOS]] firewalld | + | * [[Сервис Firewall#CentOS]] firewalld (для демонстрации темы можно отключить) |
| + | |||
| + | * [[https://access.redhat.com/documentation/ru-ru/red_hat_enterprise_linux/5/html/deployment_guide/rhlcommon-section-0085|50.2.11. Running a Command in a Specific Security Context]] | ||
| + | * [[https://blog.tinned-software.net/change-ssh-port-in-centos-with-selinux/|Change SSH port in CentOS with SELinux]] | ||
| <code> | <code> | ||
| Line 56: | Line 57: | ||
| # ss -tupanZ | grep ssh | # ss -tupanZ | grep ssh | ||
| - | # yum install setools-console | + | # runcon -t sshd_t -r system_r -u system_u /usr/sbin/sshd -p 2222 -d |
| - | # sesearch --allow | grep sshd_t | grep port | + | |
| + | # semanage port -l | grep ssh | ||
| # semanage port -a -t ssh_port_t -p tcp 2222 | # semanage port -a -t ssh_port_t -p tcp 2222 | ||
| - | # yum install policycoreutils-devel | + | |
| - | # sepolicy network -a /usr/sbin/sshd | + | |
| # semanage port -d -t ssh_port_t -p tcp 22 | # semanage port -d -t ssh_port_t -p tcp 22 | ||
| </code> | </code> | ||
| - | * [[Сервис XINETD]] | + | ===== Управление разрешениями с использованием boolean ===== |
| - | * [[Средства программирования shell#Web сервер на shell]] | + | |
| + | * [[https://wiki.centos.org/TipsAndTricks/SelinuxBooleans|SELinux Booleans]] | ||
| + | * [[https://serverfault.com/questions/666045/zabbix-server-selinux-policy|Zabbix server SELinux policy]] | ||
| <code> | <code> | ||
| - | # runcon -t inetd_child_t -r system_r -u system_u cat /etc/passwd | + | # semanage boolean -l | grep zabbix |
| - | # runcon -t httpd_t -r system_r -u system_u cat /etc/passwd | + | |
| - | </code><code> | + | |
| - | # semanage boolean -l | + | |
| ... | ... | ||
| - | httpd_can_connect_ldap | + | |
| + | или | ||
| + | |||
| + | # getsebool -a | grep zabbix | ||
| ... | ... | ||
| + | |||
| + | # setsebool -P httpd_can_connect_zabbix on | ||
| </code> | </code> | ||
| + | |||
| + | ===== Аудит SELinux Policy утилитой sesearch ===== | ||
| + | |||
| + | * [[https://www.lisenet.com/2019/auditing-the-selinux-policy-with-sesearch/|Auditing the SELinux Policy with sesearch]] | ||
| + | |||
| + | <code> | ||
| + | # yum install -y setools-console | ||
| + | |||
| + | # sesearch --allow | tee se_allow.txt | ||
| + | ... | ||
| + | allow sshd_t ssh_port_t:tcp_socket name_bind; | ||
| + | ... | ||
| + | allow httpd_t zabbix_port_t:tcp_socket name_connect; [ httpd_can_connect_zabbix ]:True | ||
| + | ... | ||
| + | </code> | ||
| + | |||
| ===== Разработка модулей ===== | ===== Разработка модулей ===== | ||
модуль_selinux.txt · Last modified: 2024/08/23 09:32 by val
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