\u0648\u0642\u062a\u06cc \u0635\u062d\u0628\u062a \u0627\u0632 \u06a9\u0648\u0628\u0631\u0646\u062a\u06cc\u0632 \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0642\u0627\u0628\u0644\u06cc\u062a\u200c\u0647\u0627\u06cc \u0644\u06cc\u0646\u0648\u06a9\u0633 (Linux Capabilities) \u0631\u0627 \u062f\u0631 SecurityContext \u062e\u0648\u062f \u0627\u0636\u0627\u0641\u0647 \u06cc\u0627 \u062d\u0630\u0641 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0633\u0637\u0648\u062d \u062d\u0645\u0644\u0647 \u06a9\u0627\u0647\u0634 \u06cc\u0627\u0628\u062f.
\n\u0648\u0642\u062a\u06cc \u06cc\u06a9 pod \u0628\u0627 \u062a\u0635\u0648\u06cc\u0631 BusyBox \u0627\u062c\u0631\u0627 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f\u060c \u0628\u0647 \u0637\u0648\u0631 \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u067e\u06cc\u0646\u06af \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n
\r\n$ kubectl run ping-pod \\\r\n--image=busybox --restart=Never \\\r\n-it -- sh -c "ping 8.8.8.8"\r\n\r\n\u06f6\u06f4 bytes from 8.8.8.8: seq=1 ttl=61 time=13.500 ms\r\n\u06f6\u06f4 bytes from 8.8.8.8: seq=2 ttl=61 time=16.598 ms\r\n\u06f6\u06f4 bytes from 8.8.8.8: seq=3 ttl=61 time=16.262 ms\r\n<\/pre>\n\u062d\u0627\u0644\u0627\u060c \u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u0646\u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u0628\u0647 BusyBox pod \u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f \u067e\u06cc\u0646\u06af \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u062f.<\/p>\n
\u062f\u0631 \u0627\u06cc\u0646 \u062d\u0627\u0644\u062a\u060c \u0642\u0627\u0628\u0644\u06cc\u062a NET_RAW \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 Security Context \u062d\u0630\u0641 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645.<\/p>\n
\u0642\u0627\u0628\u0644\u06cc\u062a NET_RAW \u0628\u0647 \u06cc\u06a9 \u06a9\u0627\u0646\u062a\u06cc\u0646\u0631 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u062a\u0627 \u0633\u0648\u06a9\u062a\u200c\u0647\u0627\u06cc \u0634\u0628\u06a9\u0647 \u062e\u0627\u0645 \u0627\u06cc\u062c\u0627\u062f \u0648 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u0648\u0631\u0627\u062a\u06cc \u0645\u0627\u0646\u0646\u062f \u067e\u06cc\u0646\u06af \u0648 \u0628\u0631\u062e\u06cc \u0627\u0632 \u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc \u062f\u06cc\u0628\u0627\u06af \u0634\u0628\u06a9\u0647 \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0627\u0633\u062a.<\/p>\n
\u0628\u0627 \u062d\u0630\u0641 NET_RAW\u060c \u0627\u0632 \u0627\u0631\u0633\u0627\u0644 \u0628\u0633\u062a\u0647\u200c\u0647\u0627\u06cc \u062e\u0627\u0645 \u062a\u0648\u0633\u0637 \u06a9\u0627\u0646\u062a\u06cc\u0646\u0631 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645.<\/p>\n
\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c<\/p>\n
\r\napiVersion: v1\r\nkind: Pod\r\nmetadata:\r\nname: busybox-ping\r\nspec:\r\ncontainers:\r\n- name: busybox\r\nimage: busybox:latest\r\ncommand: ["sleep", "3600"]\r\nsecurityContext:\r\ncapabilities:\r\ndrop:\r\n- NET_RAW\r\n<\/pre>\n\u0627\u06af\u0631 \u0627\u06cc\u0646 pod \u0631\u0627 \u0645\u0633\u062a\u0642\u0631 \u06a9\u0646\u06cc\u062f \u0648 \u067e\u06cc\u0646\u06af \u0631\u0627 \u0627\u0645\u062a\u062d\u0627\u0646 \u06a9\u0646\u06cc\u062f\u060c \u062e\u0637\u0627\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0631\u06cc\u0627\u0641\u062a \u062e\u0648\u0627\u0647\u06cc\u062f \u06a9\u0631\u062f.<\/p>\n
\r\n$ kubectl exec -it busybox-secure -- ping 8.8.8.8\r\n\r\nPING 8.8.8.8 (8.8.8.8): 56 data bytes\r\nping: permission denied (are you root?)\r\ncommand terminated with exit code 1\r\n<\/pre>\n<\/span>\u062a\u062d\u0644\u06cc\u0644 \u0642\u0627\u0628\u0644\u06cc\u062a\u200c\u0647\u0627 \u0628\u0627 Systemd<\/span><\/h3>\n\u062f\u0631 \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u0644\u06cc\u0646\u0648\u06a9\u0633\u060c \u062f\u0633\u062a\u0648\u0631 systemd-analyze security \u0628\u0631\u0627\u06cc \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u0627\u0645\u0646\u06cc\u062a \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627\u06cc systemd \u0628\u0627 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 sandboxing \u0648 \u0648\u06cc\u0698\u06af\u06cc\u200c\u0647\u0627\u06cc \u0627\u0645\u0646\u06cc\u062a\u06cc \u0622\u0646\u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n
\u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0646\u062d\u0648\u0647 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u06cc\u06a9 \u0633\u0631\u0648\u06cc\u0633 \u0631\u0627 \u0627\u0632 \u0646\u0638\u0631 \u0645\u062d\u062f\u0648\u062f\u06cc\u062a\u200c\u0647\u0627\u06cc \u0642\u0627\u0628\u0644\u06cc\u062a \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f. (\u0645\u062b\u0644\u0627 CAP_NET_ADMIN\u060c CAP_DAC_OVERRIDE) \u0648 \u0645\u0648\u0627\u0631\u062f \u062f\u06cc\u06af\u0631.<\/p>\n
\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0646\u0645\u0648\u0646\u0647\u200c\u0627\u06cc \u0627\u0632 \u062e\u0631\u0648\u062c\u06cc \u062f\u0633\u062a\u0648\u0631 systemd-analyze security \u0622\u0648\u0631\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n
<\/p>\n
\u0634\u0645\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0646\u0627\u0645 \u0648\u0627\u062d\u062f\u060c \u06cc\u06a9 \u0633\u0631\u0648\u06cc\u0633 \u062e\u0627\u0635 \u0631\u0627 \u0628\u06cc\u0634\u062a\u0631 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u06a9\u0646\u06cc\u062f.<\/p>\n
\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c<\/p>\n
\r\nsystemd-analyze security apache2.service\r\n<\/pre>\n<\/span>\u062c\u0645\u0639 \u0628\u0646\u062f\u06cc<\/span><\/h4>\n\u0642\u0627\u0628\u0644\u06cc\u062a\u200c\u0647\u0627\u06cc \u0644\u06cc\u0646\u0648\u06a9\u0633 (Linux Capabilities) \u0628\u0627 \u0641\u0631\u0627\u0647\u0645 \u06a9\u0631\u062f\u0646 \u0627\u0645\u06a9\u0627\u0646 \u06a9\u0646\u062a\u0631\u0644 \u062f\u0642\u06cc\u0642 \u0628\u0631 \u0631\u0648\u06cc \u06a9\u0627\u0631\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0641\u0631\u0622\u06cc\u0646\u062f\u0647\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u0646\u062f\u060c \u0646\u0642\u0634 \u0645\u0647\u0645\u06cc \u062f\u0631 \u0627\u062c\u0631\u0627\u06cc \u0627\u0635\u0644 \u062d\u062f\u0627\u0642\u0644 \u0627\u0645\u062a\u06cc\u0627\u0632 (principle of least privilege) \u062f\u0627\u0631\u0646\u062f.
\n\u0628\u0631\u0627\u06cc \u0645\u0647\u0646\u062f\u0633\u0627\u0646 DevOps\u060c \u067e\u06cc\u0634\u06af\u06cc\u0631\u0627\u0646\u0647 \u0628\u0648\u062f\u0646 \u062f\u0631 \u0645\u0648\u0631\u062f \u0627\u06cc\u0646 \u0628\u0647\u062a\u0631\u06cc\u0646 \u0634\u06cc\u0648\u0647\u200c\u0647\u0627 \u0645\u0647\u0645 \u0627\u0633\u062a. \u0627\u0645\u0646\u06cc\u062a \u0646\u0628\u0627\u06cc\u062f \u06cc\u06a9 \u0627\u0645\u0631 \u0641\u0631\u0639\u06cc \u0628\u0627\u0634\u062f\u061b \u0628\u0627 \u0627\u0646\u062c\u0627\u0645 \u0627\u0642\u062f\u0627\u0645\u0627\u062a \u0627\u0645\u0646\u06cc\u062a\u06cc \u06a9\u0648\u0686\u06a9 \u0627\u0645\u0627 \u0647\u0648\u0634\u0645\u0646\u062f\u0627\u0646\u0647 \u062f\u0631 \u0647\u0631 \u06a9\u062c\u0627 \u06a9\u0647 \u0644\u0627\u0632\u0645 \u0628\u0627\u0634\u062f\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u063a\u0627\u0641\u0644\u06af\u06cc\u0631\u06cc\u200c\u0647\u0627\u06cc \u0644\u062d\u0638\u0647 \u0622\u062e\u0631\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u06a9\u0646\u06cc\u062f \u0648 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u062e\u0648\u062f \u0631\u0627 \u0627\u0632 \u0647\u0645\u0627\u0646 \u0627\u0628\u062a\u062f\u0627 \u0627\u06cc\u0645\u0646 \u0646\u06af\u0647 \u062f\u0627\u0631\u06cc\u062f.<\/p>\n","protected":false},"excerpt":{"rendered":"\u0644\u06cc\u0646\u0648\u06a9\u0633 \u0628\u0627 \u0628\u0647\u0631\u0647\u200c\u06af\u06cc\u0631\u06cc \u0627\u0632 \u0648\u06cc\u0698\u06af\u06cc\u200c\u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f Namespaces\u060c cgroups \u0648 \u0641\u0627\u06cc\u0644\u200c\u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u062a\u0631\u06a9\u06cc\u0628\u06cc\u060c \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0627\u0635\u0644\u06cc \u0627\u062c\u0631\u0627\u06cc \u06a9\u0627\u0646\u062a\u06cc\u0646\u0631\u0647\u0627 \u0648 \u06a9\u0648\u0628\u0631\u0646\u062a\u06cc\u0632 \u0631\u0627…","protected":false},"author":1,"featured_media":3860,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"csco_singular_sidebar":"","csco_page_header_type":"","csco_page_load_nextpost":"","footnotes":""},"categories":[8,3],"tags":[],"class_list":{"0":"post-3761","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-server","8":"category-linux","9":"cs-entry"},"_links":{"self":[{"href":"https:\/\/parsdev.com/blog\/wp-json\/wp\/v2\/posts\/3761","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/parsdev.com/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/parsdev.com/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/parsdev.com/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/parsdev.com/blog\/wp-json\/wp\/v2\/comments?post=3761"}],"version-history":[{"count":12,"href":"https:\/\/parsdev.com/blog\/wp-json\/wp\/v2\/posts\/3761\/revisions"}],"predecessor-version":[{"id":4570,"href":"https:\/\/parsdev.com/blog\/wp-json\/wp\/v2\/posts\/3761\/revisions\/4570"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/parsdev.com/blog\/wp-json\/wp\/v2\/media\/3860"}],"wp:attachment":[{"href":"https:\/\/parsdev.com/blog\/wp-json\/wp\/v2\/media?parent=3761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/parsdev.com/blog\/wp-json\/wp\/v2\/categories?post=3761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/parsdev.com/blog\/wp-json\/wp\/v2\/tags?post=3761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}