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сервис_firewall [2020/12/01 16:34] val [Debian/Ubuntu (iptables)] |
сервис_firewall [2024/05/05 19:07] val [Debian/Ubuntu (iptables)] |
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| ===== Конфигурация для рабочей станции ===== | ===== Конфигурация для рабочей станции ===== | ||
| + | |||
| + | ==== nftables ==== | ||
| + | |||
| + | * [[https://habr.com/ru/companies/ruvds/articles/580648/|Переход с iptables на nftables. Краткий справочник]] | ||
| + | * [[https://cryptoworld.su/kak-perejti-s-iptables-na-nftables-polnaya-istrukciya/|Как перейти с iptables на Nftables — полная инструкция]] | ||
| ==== Linux (iptables) ==== | ==== Linux (iptables) ==== | ||
| - | * [[https://help.ubuntu.com/community/IptablesHowTo]] | + | |
| - | * [[http://ru.wikibooks.org/wiki/Iptables]] | + | * [[https://help.ubuntu.com/community/IptablesHowTo|ubuntu.com community IptablesHowTo]] |
| - | * [[https://ru.wikipedia.org/wiki/Netfilter]] | + | * [[https://ru.wikibooks.org/wiki/Iptables|Материал из Викиучебника iptables — утилита командной строки]] |
| + | * [[https://ru.wikipedia.org/wiki/Netfilter|Материал из Википедии netfilter — межсетевой экран]] | ||
| === Настройка фильтра === | === Настройка фильтра === | ||
| Line 30: | Line 36: | ||
| # iptables -n -L -v --line-numbers | # iptables -n -L -v --line-numbers | ||
| </code> | </code> | ||
| + | === Удаление правил фильтра === | ||
| + | <code> | ||
| + | iptables -t ТАБЛИЦА -D ЦЕПОЧКА НОМЕР_ПРАВИЛА | ||
| + | </code> | ||
| === Работа с таблицей состояний === | === Работа с таблицей состояний === | ||
| Line 41: | Line 50: | ||
| </code> | </code> | ||
| - | === Сохранение состояния iptables === | + | === Управление состоянием iptables === |
| + | |||
| + | == Вариант 1 == | ||
| + | |||
| + | == Сохранение состояния iptables == | ||
| <code> | <code> | ||
| - | # iptables-save > /etc/iptables.rules | + | root@gate:~# iptables-save > /etc/iptables.rules |
| </code> | </code> | ||
| - | === Восстановление состояния iptables === | + | == Восстановление состояния iptables == |
| <code> | <code> | ||
| - | # iptables-restore < /etc/iptables.rules | + | root@gate:~# iptables-restore < /etc/iptables.rules |
| </code> | </code> | ||
| - | === Восстановление состояния iptables при загрузке === | + | == Восстановление состояния iptables при загрузке == |
| - | + | ||
| - | == Debian/Ubuntu == | + | |
| <code> | <code> | ||
| - | # cat /etc/network/interfaces | + | root@gate:~# cat /etc/network/interfaces |
| </code><code> | </code><code> | ||
| ... | ... | ||
| Line 62: | Line 73: | ||
| pre-up iptables-restore < /etc/iptables.rules | pre-up iptables-restore < /etc/iptables.rules | ||
| ... | ... | ||
| + | </code> | ||
| + | |||
| + | == Вариант 2 == | ||
| + | <code> | ||
| + | # apt install iptables-persistent | ||
| + | |||
| + | # netfilter-persistent save | ||
| </code> | </code> | ||
| ==== CentOS ==== | ==== CentOS ==== | ||
| - | === CentOS 7 === | + | === CentOS 7, AlmaLinux 9 === |
| * [[https://bozza.ru/art-259.html|Настройка firewalld CentOS 7 с примерами команд]] | * [[https://bozza.ru/art-259.html|Настройка firewalld CentOS 7 с примерами команд]] | ||
| Line 405: | Line 423: | ||
| </code> | </code> | ||
| + | ==== nftables ==== | ||
| + | |||
| + | * [[https://access.redhat.com/documentation/ru-ru/red_hat_enterprise_linux/7/html/security_guide/sec-using_nftables_to_limit_the_amount_of_connections|Using nftables to limit the amount of connections]] | ||
| + | |||
| + | <code> | ||
| + | gate# cat /etc/nftables.conf | ||
| + | </code><code> | ||
| + | ... | ||
| + | table inet filter { | ||
| + | set denylist { | ||
| + | type ipv4_addr | ||
| + | size 65535 | ||
| + | flags dynamic,timeout | ||
| + | timeout 5m | ||
| + | } | ||
| + | ... | ||
| + | chain forward { | ||
| + | type filter hook forward priority filter; policy accept; | ||
| + | ip protocol tcp ct state new,untracked limit rate over 10/second add @denylist { ip saddr } | ||
| + | ip saddr @denylist drop | ||
| + | } | ||
| + | ... | ||
| + | </code> | ||
| ==== FreeBSD (pf) ==== | ==== FreeBSD (pf) ==== | ||
| Line 424: | Line 465: | ||
| # pfctl -t fail2ban -T add 172.16.1.254 | # pfctl -t fail2ban -T add 172.16.1.254 | ||
| + | # pfctl -k 172.16.1.254 | ||
| # pfctl -t fail2ban -T flush | # pfctl -t fail2ban -T flush | ||
| Line 441: | Line 483: | ||
| <code> | <code> | ||
| [gate:~] # pfctl -vs state | [gate:~] # pfctl -vs state | ||
| + | |||
| + | [gate:~] # pfctl -k 0.0.0.0/0 -k 172.16.1.254 | ||
| [gate:~] # pfctl -F states | [gate:~] # pfctl -F states | ||
сервис_firewall.txt · Last modified: 2024/05/07 16:18 by val
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