52 lines
1.5 KiB
Plaintext
52 lines
1.5 KiB
Plaintext
# Saikyo OS Server - Kernel Security Hardening
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# Соответствует требованиям безопасности Минцифры
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# Защита от IP spoofing
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net.ipv4.conf.all.rp_filter = 1
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net.ipv4.conf.default.rp_filter = 1
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# Отключить ICMP redirect
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net.ipv4.conf.all.accept_redirects = 0
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net.ipv4.conf.default.accept_redirects = 0
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net.ipv4.conf.all.send_redirects = 0
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net.ipv4.conf.default.send_redirects = 0
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net.ipv6.conf.all.accept_redirects = 0
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net.ipv6.conf.default.accept_redirects = 0
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# Отключить source routing
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net.ipv4.conf.all.accept_source_route = 0
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net.ipv4.conf.default.accept_source_route = 0
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net.ipv6.conf.all.accept_source_route = 0
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net.ipv6.conf.default.accept_source_route = 0
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# Защита от SYN flood
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net.ipv4.tcp_syncookies = 1
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net.ipv4.tcp_max_syn_backlog = 2048
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net.ipv4.tcp_synack_retries = 2
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# Игнорировать ICMP broadcast
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net.ipv4.icmp_echo_ignore_broadcasts = 1
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# Логировать martian пакеты
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net.ipv4.conf.all.log_martians = 1
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net.ipv4.conf.default.log_martians = 1
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# Защита памяти
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kernel.randomize_va_space = 2
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kernel.kptr_restrict = 2
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kernel.dmesg_restrict = 1
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kernel.perf_event_paranoid = 3
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# Ограничение core dumps
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fs.suid_dumpable = 0
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# Защита от symlink/hardlink атак
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fs.protected_symlinks = 1
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fs.protected_hardlinks = 1
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fs.protected_fifos = 2
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fs.protected_regular = 2
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# IPv6 (отключить если не используется)
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# net.ipv6.conf.all.disable_ipv6 = 1
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# net.ipv6.conf.default.disable_ipv6 = 1
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