{"id":839,"date":"2019-02-03T13:38:31","date_gmt":"2019-02-03T04:38:31","guid":{"rendered":"http:\/\/taki-lab.site\/bocci\/?p=839"},"modified":"2020-11-01T14:25:53","modified_gmt":"2020-11-01T05:25:53","slug":"vps%e3%81%ab%e3%83%95%e3%82%a1%e3%82%a4%e3%82%a2%e3%83%bc%e3%82%a6%e3%82%a9%e3%83%bc%e3%83%ab%e3%82%92%e8%a8%ad%e5%ae%9a%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/taki-lab.site\/bocci\/?p=839","title":{"rendered":"VPS\u306b\u30d5\u30a1\u30a4\u30a2\u30fc\u30a6\u30a9\u30fc\u30eb\u3092\u8a2d\u5b9a\u3059\u308b"},"content":{"rendered":"\n<p>\u4eca\u56de\u306fVPS\u306b\u30d5\u30a1\u30a4\u30a2\u30fc\u30a6\u30a9\u30fc\u30eb\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528\u3059\u308b\u306e\u306fiptables\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u3092\u8a2d\u5b9a\u3057\u306a\u3044\u3068\u3001\u5168\u30dd\u30fc\u30c8\u304c\u89e3\u653e\u3055\u308c\u3066\u3044\u308b\u72b6\u614b\u3068\u306a\u308a\u3001<\/p>\n\n\n\n<p>\u4eee\u306b\u3001\u30b5\u30fc\u30d0\u306b\u60aa\u610f\u306e\u3042\u308b\u30bd\u30d5\u30c8\u304c\u4ed5\u8fbc\u307e\u308c\u3001\u30dd\u30fc\u30c8\u3092listen\u3057\u3066\u3044\u308b\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u308b\u3068\u3001<\/p>\n\n\n\n<p>\u653b\u6483\u8005\u306f\u305d\u306e\u30dd\u30fc\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3060\u3051\u3067\u7c21\u5358\u306b\u30b5\u30fc\u30d0\u3092\u66f8\u304d\u63db\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001iptable\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u5916\u304b\u3089\u306e\u8a31\u53ef\u3055\u308c\u305f\u30dd\u30fc\u30c8\u4ee5\u5916\u306f\u5168\u3066iptables\u3067\u30d6\u30ed\u30c3\u30af\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305a\u306f\u3001\u73fe\u72b6\u3092\u78ba\u8a8d<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># iptables -nL<\/code><\/pre>\n\n\n\n<p>\u305f\u3076\u3093\u5168\u30dd\u30fc\u30c8\u958b\u653e\u72b6\u614b\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30c7\u30fc\u30bf\u3092\u6301\u305f\u306a\u3044\u30d1\u30b1\u30c3\u30c8\u3092\u7834\u68c4<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># iptables -A INPUT -p tcp --tcp-flags ALL NONE -j DROP<\/code><\/pre>\n\n\n\n<p>SYNflood\u653b\u6483\u3068\u601d\u308f\u308c\u308b\u63a5\u7d9a\u3092\u7834\u68c4<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># iptables -A INPUT -p tcp ! --syn -m state --state NEW -j DROP<\/code><\/pre>\n\n\n\n<p>\u30b9\u30c6\u30eb\u30b9\u30b9\u30ad\u30e3\u30f3\u3068\u601d\u308f\u308c\u308b\u63a5\u7d9a\u3092\u7834\u68c4<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># iptables -A INPUT -p tcp --tcp-flags ALL ALL -j DROP<\/code><\/pre>\n\n\n\n<p>localhost\u304b\u3089\u306e\u901a\u4fe1\u3068ping\u3092\u8a31\u53ef<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># iptables -A INPUT -i lo -j ACCEPT<\/code><\/pre>\n\n\n\n<p>http\u306b\u3088\u308b\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u53ef<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># iptables -A INPUT -p tcp -m tcp \u2013dport 80 -j ACCEPT\n# iptables -A INPUT -p tcp -m tcp \u2013dport 443 -j ACCEPT<\/code><\/pre>\n\n\n\n<p>\u305d\u306e\u4ed6\u3001\u4f7f\u7528\u3057\u3066\u3044\u308b\u30b5\u30fc\u30d3\u30b9\u306e\u30dd\u30fc\u30c8\u3092\u8a31\u53ef\u3059\u308b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># iptables -A INPUT -p tcp -m tcp \u2013dport &#91;\u30dd\u30fc\u30c8\u756a\u53f7] -j ACCEPT<\/code><\/pre>\n\n\n\n<p>\u78ba\u7acb\u6e08\u307f\u306e\u901a\u4fe1\u3092\u8a31\u53ef\u306b\u8a2d\u5b9a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># iptables -I INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT<\/code><\/pre>\n\n\n\n<p>\u8a31\u53ef\u3057\u305f\u901a\u4fe1\u4ee5\u5916\u306e\u30b5\u30fc\u30d0\u306b\u53d7\u4fe1\u3059\u308b\u30d1\u30b1\u30c3\u30c8\u3092\u62d2\u5426\u3057\u3001\u30b5\u30fc\u30d0\u304b\u3089\u9001\u4fe1\u3059\u308b\u30d1\u30b1\u30c3\u30c8\u3092\u8a31\u53ef<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># iptables -P INPUT DROP\n# iptables -P OUTPUT ACCEPT<\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u72b6\u614b\u3067\u3001\u4f7f\u7528\u3057\u3066\u3044\u308b\u30b5\u30fc\u30d0\u30a2\u30af\u30bb\u30b9\u304c\u4e00\u901a\u308a\u3067\u304d\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u3067\u304d\u306a\u3051\u308c\u3070\u3001\u305d\u306e\u30dd\u30fc\u30c8\u3092\u958b\u653e\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u3067\u3001\u3053\u306e\u8a2d\u5b9a\u3092\u4fdd\u5b58\u3059\u308b\u3093\u3060\u3051\u3069\u3001\u901a\u5e38\u306a\u3089service iptables save\u3067\u3067\u304d\u308b\u306f\u305a\u306a\u3093\u3060\u3051\u3069\u3001<\/p>\n\n\n\n<p>\u306a\u305c\u304b\u3067\u304d\u306a\u3044\u306e\u3067\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4f5c\u3063\u3066\u3001\u518d\u8d77\u52d5\u3059\u308b\u5ea6\u306b\u8a2d\u5b9a\u3092\u884c\u3046\u3088\u3046\u306b\u3059\u308b\u3002\uff08\u3081\u3093\u3069\u304f\u305b\u30fc\uff09<\/p>\n\n\n\n<p>\u3053\u308c\u3067\u30d5\u30a1\u30a4\u30a2\u30fc\u30a6\u30a9\u30fc\u30eb\u306e\u8a2d\u5b9a\u3067\u304d\u307e\u3057\u305f\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u56de\u306fVPS\u306b\u30d5\u30a1\u30a4\u30a2\u30fc\u30a6\u30a9\u30fc\u30eb\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002 \u4f7f\u7528\u3059\u308b\u306e\u306fiptables\u3067\u3059\u3002 \u3053\u308c\u3092\u8a2d\u5b9a\u3057\u306a\u3044\u3068\u3001\u5168\u30dd\u30fc\u30c8\u304c\u89e3\u653e\u3055\u308c\u3066\u3044\u308b\u72b6\u614b\u3068\u306a\u308a\u3001 \u4eee\u306b\u3001\u30b5\u30fc\u30d0\u306b\u60aa\u610f\u306e\u3042\u308b\u30bd\u30d5\u30c8\u304c\u4ed5\u8fbc\u307e\u308c\u3001\u30dd\u30fc\u30c8\u3092listen\u3057\u3066\u3044\u308b\u72b6\u614b\u306b\u306a &hellip; <a href=\"https:\/\/taki-lab.site\/bocci\/?p=839\" class=\"more-link\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">VPS\u306b\u30d5\u30a1\u30a4\u30a2\u30fc\u30a6\u30a9\u30fc\u30eb\u3092\u8a2d\u5b9a\u3059\u308b<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[8,3],"tags":[],"class_list":["post-839","post","type-post","status-publish","format-standard","hentry","category-linux","category-3"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8SDbY-dx","jetpack-related-posts":[{"id":843,"url":"https:\/\/taki-lab.site\/bocci\/?p=843","url_meta":{"origin":839,"position":0},"title":"VPS\u306eFTP\u30dd\u30fc\u30c8\u3092\u5909\u66f4\u3059\u308b","author":"taki","date":"2019\u5e742\u67083\u65e5","format":false,"excerpt":"\u3053\u308c\u306f\u3048\u3089\u3044\u4eba\u304b\u3089\u306e\u6307\u793a\u3067\u8abf\u3079\u305f\u3002 \u307e\u305a\u306f\u3001vsftps\u306b\u30dd\u30fc\u30c8\u8a2d\u5b9a\u3092\u66f8\u304d\u8db3\u3059\u3002 $ sudo vi\u2026","rel":"","context":"Linux","block_context":{"text":"Linux","link":"https:\/\/taki-lab.site\/bocci\/?cat=8"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":13105,"url":"https:\/\/taki-lab.site\/bocci\/?p=13105","url_meta":{"origin":839,"position":1},"title":"\u3010VPS\u3011Ubuntu\u309224.04\u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u305f\u3089iptables\u306f\u30ec\u30ac\u30b7\u30fc\u306b\u306a\u3063\u3066\u307e\u3057\u305f\u3002","author":"taki","date":"2025\u5e745\u67086\u65e5","format":false,"excerpt":"VPS\u3092\u69cb\u7bc9\u3057\u305f\u3068\u304d\u306f\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092iptables\u3067\u8a2d\u5b9a\u3057\u305f\u306e\u3067\u3059\u304c\u3001 VPS\u306b\u30d5\u30a1\u30a4\u30a2\u30fc\u30a6\u30a9\u2026","rel":"","context":"Linux","block_context":{"text":"Linux","link":"https:\/\/taki-lab.site\/bocci\/?cat=8"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4462,"url":"https:\/\/taki-lab.site\/bocci\/?p=4462","url_meta":{"origin":839,"position":2},"title":"\u30de\u30a4\u30f3\u30af\u30e9\u30d5\u30c8\u30b5\u30fc\u30d0(\u4eee\u60f3PC)\u306b\u30d5\u30a1\u30a4\u30a2\u30fc\u30a6\u30a9\u30fc\u30eb\u3092\u8a2d\u5b9a\u3059\u308b\u3002","author":"taki","date":"2020\u5e7411\u67082\u65e5","format":false,"excerpt":"https:\/\/taki-lab.site\/bocci\/?p=4447 \u3053\u306e\u3084\u308a\u65b9\u3067\u8a2d\u5b9a\u3067\u304d\u308b\u306f\u305a\u3002\u2026","rel":"","context":"\u30b2\u30fc\u30e0","block_context":{"text":"\u30b2\u30fc\u30e0","link":"https:\/\/taki-lab.site\/bocci\/?cat=10"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1727,"url":"https:\/\/taki-lab.site\/bocci\/?p=1727","url_meta":{"origin":839,"position":3},"title":"\u30de\u30a4\u30f3\u30af\u30e9\u30d5\u30c8\u30b5\u30fc\u30d0\u3092\u7acb\u3061\u4e0a\u3052\u308b","author":"taki","date":"2019\u5e7411\u670823\u65e5","format":false,"excerpt":"\u4f55\u3092\u601d\u3063\u305f\u306e\u304bJava\u7248\u306e\u30de\u30a4\u30f3\u30af\u30e9\u30d5\u30c8\u3092\u8cb7\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002 \u5358\u4f53\u3067\u30d7\u30ec\u30a4\u3057\u3066\u3082\u3044\u3044\u306e\u3067\u3059\u304c\u3001\u305b\u3063\u2026","rel":"","context":"\u30b2\u30fc\u30e0","block_context":{"text":"\u30b2\u30fc\u30e0","link":"https:\/\/taki-lab.site\/bocci\/?cat=10"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/taki-lab.site\/bocci\/wp-content\/uploads\/2019\/11\/Screenshot-from-2019-11-23-19-50-14.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/taki-lab.site\/bocci\/wp-content\/uploads\/2019\/11\/Screenshot-from-2019-11-23-19-50-14.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/taki-lab.site\/bocci\/wp-content\/uploads\/2019\/11\/Screenshot-from-2019-11-23-19-50-14.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/taki-lab.site\/bocci\/wp-content\/uploads\/2019\/11\/Screenshot-from-2019-11-23-19-50-14.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":13409,"url":"https:\/\/taki-lab.site\/bocci\/?p=13409","url_meta":{"origin":839,"position":4},"title":"\u306a\u305c\u304b\u7a81\u7136VPS\u306b\u30a2\u30af\u30bb\u30b9\u51fa\u6765\u306a\u304f\u306a\u308b\u554f\u984c\u3002","author":"taki","date":"2025\u5e747\u670827\u65e5","format":false,"excerpt":"\u306a\u305c\u304b\u3053\u3053\u6700\u8fd1\u306b\u306a\u3063\u3066\u3001\u7a81\u7136VPS\u306e\u30d6\u30ed\u30b0\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u4e8b\u614b\u304c\u304a\u304d\u307e\u3057\u3066\u3001 \u30d6\u30e9\u30a6\u30b6\u304b\u3089\u30d6\u30ed\u30b0\u306b\u2026","rel":"","context":"Linux","block_context":{"text":"Linux","link":"https:\/\/taki-lab.site\/bocci\/?cat=8"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/taki-lab.site\/bocci\/wp-content\/uploads\/2025\/07\/386a7216123a64d1bfc688a82390e4e5.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/taki-lab.site\/bocci\/wp-content\/uploads\/2025\/07\/386a7216123a64d1bfc688a82390e4e5.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/taki-lab.site\/bocci\/wp-content\/uploads\/2025\/07\/386a7216123a64d1bfc688a82390e4e5.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/taki-lab.site\/bocci\/wp-content\/uploads\/2025\/07\/386a7216123a64d1bfc688a82390e4e5.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/taki-lab.site\/bocci\/wp-content\/uploads\/2025\/07\/386a7216123a64d1bfc688a82390e4e5.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/taki-lab.site\/bocci\/wp-content\/uploads\/2025\/07\/386a7216123a64d1bfc688a82390e4e5.png?resize=1400%2C800&ssl=1 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