{"id":19376,"date":"2017-01-14T06:26:06","date_gmt":"2017-01-13T22:26:06","guid":{"rendered":"https:\/\/2blog.ilc.edu.tw\/25793\/2017\/01\/14\/%e8%a9%a6%e7%94%a8-banana-pi-m3-ubuntu-minimal-16-04-%e5%ae%89%e8%a3%9d-fail2ban\/"},"modified":"2017-01-14T06:26:06","modified_gmt":"2017-01-13T22:26:06","slug":"%e8%a9%a6%e7%94%a8-banana-pi-m3-ubuntu-minimal-16-04-%e5%ae%89%e8%a3%9d-fail2ban","status":"publish","type":"post","link":"https:\/\/2blog.ilc.edu.tw\/25793\/2017\/01\/14\/%e8%a9%a6%e7%94%a8-banana-pi-m3-ubuntu-minimal-16-04-%e5%ae%89%e8%a3%9d-fail2ban\/","title":{"rendered":"\u8a66\u7528 Banana Pi M3 – Ubuntu minimal 16.04 \u5b89\u88dd fail2ban"},"content":{"rendered":"

\u5b89\u88dd fail2ban \u5957\u4ef6
# apt-get install fail2ban<\/span><\/p>\n

\u5099\u4efd\u8a2d\u5b9a\u6a94
# cp \/etc\/fail2ban\/jail.conf \/etc\/fail2ban\/jail.conf.$(date +%F)<\/span><\/p>\n

\u4fee\u6539\u8a2d\u5b9a(\u5c01\u9396\u6642\u9593<\/span>\u53ca\u5617\u8a66\u932f\u8aa4\u6b21\u6578<\/span>)
# sed -i ‘s\/^bantime\u00a0 = 600\/bantime\u00a0 = 86400\/’ \/etc\/fail2ban\/jail.conf<\/span>
# sed -i ’66s\/^maxretry = 5\/maxretry = 3\/’ \/etc\/fail2ban\/jail.conf<\/span>[@more@]\u91cd\u65b0\u555f\u52d5 fail2ban
# systemctl restart fail2ban<\/span><\/p>\n

\u6aa2\u67e5 fail2ban \u7684\u72c0\u614b
# fail2ban-client status<\/span>
Status
|- Number of jail:\u00a0\u00a0\u00a0\u00a0\u00a0 1
`- Jail list:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 sshd<\/span><\/p>\n

\u4ee5 Client\u00a0 IP 192.168.1.17 \u5617\u8a66\u5c0d Server IP 192.168.1.16 \u5617\u8a66\u9023\u7dda\u932f\u8aa4\u5e7e\u6b21\u4e4b\u5f8c
\u5217\u51fa fail2ban \u5075\u6e2c\u5230\u7684 SSH \u653b\u64ca
# fail2ban-client status sshd<\/span>
Status for the jail: ssh
|- Filter
|\u00a0 |- File list:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/var\/log\/auth.log
|\u00a0 |- Currently failed: 0
|\u00a0 `- Total failed:\u00a0\u00a0\u00a0\u00a0 7
<\/span>`- Action<\/span>
\u00a0\u00a0 |- Currently banned: 2<\/span>
\u00a0\u00a0 |\u00a0 `- IP list:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 192.168.1.17 123.31.34.182<\/span>
\u00a0\u00a0 `- Total banned:\u00a0\u00a0\u00a0\u00a0 2<\/span><\/p>\n

\u5217\u51fa f2b-sshd \u7684\u898f\u5247
# iptables -t filter -L f2b-sshd -n<\/span>
Chain f2b-sshd (1 references)<\/span>
target\u00a0\u00a0\u00a0\u00a0 prot opt source\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 destination<\/span>
REJECT\u00a0\u00a0\u00a0\u00a0 all\u00a0 —\u00a0 192.168.1.17\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.0.0.0\/0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 reject-with icmp-port-unreachable
REJECT\u00a0\u00a0\u00a0\u00a0 all\u00a0 —\u00a0 123.31.34.182\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.0.0.0\/0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 reject-with icmp-port-unreachable<\/span>
RETURN\u00a0\u00a0\u00a0\u00a0 all\u00a0 —\u00a0 0.0.0.0\/0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.0.0.0\/0<\/span><\/p>\n

\u89e3\u9664\u65b9\u5f0f\uff1a
# iptables -D f2b-sshd\u00a0 -s 192.168.1.17 -j REJECT<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

\u5b89\u88dd fail2ban \u5957\u4ef6# apt-get install fail2ban \u5099\u4efd\u8a2d\u5b9a\u6a94# cp \/etc … <\/p>\n

\u95b1\u8b80\u5168\u6587\u3008\u8a66\u7528 Banana Pi M3 – Ubuntu minimal 16.04 \u5b89\u88dd fail2ban\u3009<\/span><\/a><\/p>\n","protected":false},"author":55,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[162,119],"tags":[],"class_list":["post-19376","post","type-post","status-publish","format-standard","hentry","category-c-83744","category-c-78464"],"meta_key":{"_pingme":["1"],"_encloseme":["1"],"lt_post_id":["680664"]},"_links":{"self":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19376"}],"collection":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/users\/55"}],"replies":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/comments?post=19376"}],"version-history":[{"count":0,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19376\/revisions"}],"wp:attachment":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/media?parent=19376"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/categories?post=19376"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/tags?post=19376"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}