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commit: 6d1bfd687106fcb4a75e0d225d77153f2b9c581d |
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Author: Craig Andrews <candrews <AT> integralblue <DOT> com> |
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AuthorDate: Tue Jan 24 17:39:20 2017 +0000 |
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Commit: Robin H. Johnson <robbat2 <AT> gentoo <DOT> org> |
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CommitDate: Sun Jan 29 23:46:19 2017 +0000 |
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URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=6d1bfd68 |
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mail-mta/postfix: additional systemd hardening |
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Other distributions are doing the same thing, and these additions are recommended by systemd. See https://lwn.net/Articles/709755/ |
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(cherry picked from commit 388f5cae8b89039f285a66651bc70d662a9d8e57) |
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Signed-off-by: Robin H. Johnson <robbat2 <AT> gentoo.org> |
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Fixes: https://github.com/gentoo/gentoo/pull/3629 |
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mail-mta/postfix/files/postfix.service | 6 ++++++ |
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1 file changed, 6 insertions(+) |
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diff --git a/mail-mta/postfix/files/postfix.service b/mail-mta/postfix/files/postfix.service |
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index 585849e..db585b3 100644 |
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--- a/mail-mta/postfix/files/postfix.service |
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+++ b/mail-mta/postfix/files/postfix.service |
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@@ -15,6 +15,12 @@ ProtectSystem=full |
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ReadWritePaths=-/etc/mail/aliases.db |
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CapabilityBoundingSet=~ CAP_NET_ADMIN CAP_SYS_ADMIN CAP_SYS_BOOT CAP_SYS_MODULE |
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MemoryDenyWriteExecute=true |
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+ProtectKernelModules=true |
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+ProtectKernelTunables=true |
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+ProtectControlGroups=true |
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+RestrictAddressFamilies=AF_INET AF_INET6 AF_NETLINK AF_UNIX |
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+RestrictNamespaces=true |
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+RestrictRealtime=true |
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[Install] |
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WantedBy=multi-user.target |
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