{"id":31,"date":"2024-12-01T07:59:07","date_gmt":"2024-12-01T07:59:07","guid":{"rendered":"http:\/\/211.230.203.47\/wordpress\/?p=31"},"modified":"2024-12-01T07:59:20","modified_gmt":"2024-12-01T07:59:20","slug":"buntu%ec%97%90%ec%84%9c-ip-%ec%a3%bc%ec%86%8c%ea%b0%80-dhcp%eb%a1%9c-%eb%b3%80%ea%b2%bd%eb%90%a0-%eb%95%8c-%eb%b3%80%ea%b2%bd%eb%90%9c-ip%eb%a5%bc-%ea%b0%90%ec%a7%80%ed%95%98%ea%b3%a0-%ec%9d%b4","status":"publish","type":"post","link":"https:\/\/www.soon7shop.kr\/wordpress\/?p=31","title":{"rendered":"Ubuntu\uc5d0\uc11c IP \uc8fc\uc18c\uac00 DHCP\ub85c \ubcc0\uacbd\ub420 \ub54c \ubcc0\uacbd\ub41c IP\ub97c \uac10\uc9c0\ud558\uace0 \uc774\uba54\uc77c\ub85c \uc54c\ub9bc"},"content":{"rendered":"

Ubuntu\uc5d0\uc11c IP \uc8fc\uc18c\uac00 DHCP\ub85c \ubcc0\uacbd\ub420 \ub54c \ubcc0\uacbd\ub41c IP\ub97c \uac10\uc9c0\ud558\uace0 \uc774\uba54\uc77c\ub85c \uc54c\ub9bc\uc744 \ubcf4\ub0b4\ub294 Bash \uc2a4\ud06c\ub9bd\ud2b8\ub97c \ub9cc\ub4e4\uae30 \uc704\ud574 \ub2e4\uc74c\uc744 \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ud544\uc694\ud55c \uc2a4\ud06c\ub9bd\ud2b8\uc640 \uc124\uc815 \ub2e8\uacc4\uc785\ub2c8\ub2e4.<\/p>\n

\uc2a4\ud06c\ub9bd\ud2b8 \uc791\uc131<\/h3>\n

\ub2e4\uc74c\uc740 \ubc31\uadf8\ub77c\uc6b4\ub4dc\uc5d0\uc11c \uc2e4\ud589\ub418\uba70, IP\uac00 \ubcc0\uacbd\ub420 \ub54c \uc54c\ub9bc\uc744 \ubcf4\ub0b4\ub294 Bash \uc2a4\ud06c\ub9bd\ud2b8\uc785\ub2c8\ub2e4.<\/p>\n

\n
bash<\/div>\n
\n
<\/div>\n<\/div>\n
<\/div>\n
\n

#!\/bin\/bash<\/p>\n

# \uc774\uc804 IP\ub97c \uc800\uc7a5\ud560 \ud30c\uc77c \uacbd\ub85c
\nPREVIOUS_IP_FILE=”\/tmp\/previous_ip.txt”
\n# \uba54\uc77c \uc124\uc815
\nTO_EMAIL=”your_email@example.com”
\nSMTP_SERVER=”smtp.example.com”
\nSMTP_PORT=587
\nSMTP_USER=”your_email@example.com”
\nSMTP_PASS=”your_password”<\/p>\n

# IP\ub97c \ud655\uc778\ud558\ub294 \ud568\uc218
\nget_current_ip() {
\nhostname -I | awk ‘{print $1}’
\n}<\/p>\n

# \uc774\uba54\uc77c \ubcf4\ub0b4\uae30
\nsend_email() {
\nlocal new_ip=$1
\necho -e “Subject: IP Address Changed\\n\\nYour new IP address is: $new_ip” | \\
\ncurl –url “smtp:\/\/${SMTP_SERVER}:${SMTP_PORT}” \\
\n–ssl \\
\n–mail-from “$SMTP_USER” \\
\n–mail-rcpt “$TO_EMAIL” \\
\n–user “$SMTP_USER:$SMTP_PASS”
\n}<\/p>\n

# \ucd08\uae30\ud654: \uc774\uc804 IP \ubd88\ub7ec\uc624\uae30
\nif [[ -f “$PREVIOUS_IP_FILE” ]]; then
\nprevious_ip=$(cat “$PREVIOUS_IP_FILE”)
\nelse
\nprevious_ip=””
\nfi<\/p>\n

# \ubb34\ud55c \ub8e8\ud504
\nwhile true; do
\n# \ud604\uc7ac IP \ud655\uc778
\ncurrent_ip=$(get_current_ip)<\/p>\n

# IP \ubcc0\uacbd \uc5ec\ubd80 \ud655\uc778
\nif [[ “$current_ip” != “$previous_ip” ]]; then
\necho “IP \ubcc0\uacbd\ub428: $current_ip”
\necho “$current_ip” > “$PREVIOUS_IP_FILE”
\nsend_email “$current_ip”
\nprevious_ip=”$current_ip”
\nfi<\/p>\n

# 5\ubd84 \ub300\uae30
\nsleep 300
\ndone<\/p>\n


\n<\/code><\/p>\n<\/div>\n<\/div>\n

\n

\uc2a4\ud06c\ub9bd\ud2b8 \uc2e4\ud589 \uc124\uc815<\/h3>\n
    \n
  1. \uc2a4\ud06c\ub9bd\ud2b8 \uc800\uc7a5 \ubc0f \uc2e4\ud589 \uad8c\ud55c \ubd80\uc5ec<\/strong>
    \n\uc704 \uc2a4\ud06c\ub9bd\ud2b8\ub97c \uc608\ub97c \ub4e4\uc5b4 \/home\/youruser\/ip_monitor.sh<\/code>\ub85c \uc800\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n
    \n
    bash<\/div>\n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    chmod<\/span> +x \/home\/youruser\/ip_monitor.sh
    \n<\/code><\/div>\n<\/div>\n<\/li>\n
  2. \uc2a4\ud06c\ub9bd\ud2b8\ub97c \ubc31\uadf8\ub77c\uc6b4\ub4dc\uc5d0\uc11c \uc2e4\ud589<\/strong>
    \nnohup<\/code> \uba85\ub839\uc5b4\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc2a4\ud06c\ub9bd\ud2b8\ub97c \ubc31\uadf8\ub77c\uc6b4\ub4dc\uc5d0\uc11c \uc2e4\ud589\ud569\ub2c8\ub2e4.<\/p>\n
    \n
    bash<\/div>\n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    nohup<\/span> \/home\/youruser\/ip_monitor.sh &
    \n<\/code><\/div>\n<\/div>\n<\/li>\n
  3. \uc2dc\uc2a4\ud15c \uc7ac\ubd80\ud305 \uc2dc \uc790\ub3d9 \uc2e4\ud589 \uc124\uc815<\/strong>
    \ncrontab\uc5d0 \ucd94\uac00\ud569\ub2c8\ub2e4:<\/p>\n
    \n
    bash<\/div>\n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    crontab -e
    \n<\/code><\/div>\n<\/div>\n

    \uc544\ub798 \uc904 \ucd94\uac00:<\/p>\n

    \n
    bash<\/div>\n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    @reboot \/home\/youruser\/ip_monitor.sh &
    \n<\/code><\/div>\n<\/div>\n<\/li>\n<\/ol>\n
    \n

    \ud544\uc694\ud55c \ud328\ud0a4\uc9c0 \uc124\uce58<\/h3>\n

    \uc774\uba54\uc77c\uc744 \ubcf4\ub0b4\uae30 \uc704\ud574 curl<\/code> \uba85\ub839\uc5b4\ub97c \uc0ac\uc6a9\ud558\ubbc0\ub85c \ud574\ub2f9 \ud328\ud0a4\uc9c0\uac00 \uc124\uce58\ub418\uc5b4 \uc788\ub294\uc9c0 \ud655\uc778\ud558\uc138\uc694:<\/p>\n

    \n
    bash<\/div>\n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    sudo apt update
    \nsudo apt install curl
    \n<\/code><\/div>\n<\/div>\n

    SMTP \uc815\ubcf4\ub294 \uc678\ubd80 POP3 \uba54\uc77c \uc11c\ubc84 (\uc608: Gmail, Naver \ub4f1)\uc5d0 \ub9de\uac8c \uc124\uc815\ud574\uc57c \ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4 Gmail\uc744 \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0 SMTP \uc11c\ubc84\ub97c smtp.gmail.com<\/code>\uc73c\ub85c \uc124\uc815\ud558\uc138\uc694. (\ucd94\uac00 \uc124\uc815\uc774 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4: \uad6c\uae00 \uc571 \ube44\ubc00\ubc88\ud638<\/a>)<\/p>\n

    \uc774 \uc2a4\ud06c\ub9bd\ud2b8\ub294 \ub124\ud2b8\uc6cc\ud06c \uc0c1\ud0dc\ub97c \uc8fc\uae30\uc801\uc73c\ub85c \ud655\uc778\ud558\uba70, \ubcc0\uacbd \uc0ac\ud56d\uc774 \ubc1c\uc0dd\ud560 \uacbd\uc6b0 \uc989\uc2dc \uc54c\ub9bc\uc744 \ubcf4\ub0c5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Ubuntu\uc5d0\uc11c IP \uc8fc\uc18c\uac00 DHCP\ub85c \ubcc0\uacbd\ub420 \ub54c \ubcc0\uacbd\ub41c IP\ub97c \uac10\uc9c0\ud558\uace0 \uc774\uba54\uc77c\ub85c \uc54c\ub9bc\uc744 \ubcf4\ub0b4\ub294 Bash \uc2a4\ud06c\ub9bd\ud2b8\ub97c \ub9cc\ub4e4\uae30 \uc704\ud574 \ub2e4\uc74c\uc744 \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ud544\uc694\ud55c \uc2a4\ud06c\ub9bd\ud2b8\uc640 \uc124\uc815 \ub2e8\uacc4\uc785\ub2c8\ub2e4. \uc2a4\ud06c\ub9bd\ud2b8 \uc791\uc131 \ub2e4\uc74c\uc740 \ubc31\uadf8\ub77c\uc6b4\ub4dc\uc5d0\uc11c \uc2e4\ud589\ub418\uba70, IP\uac00 \ubcc0\uacbd\ub420 \ub54c \uc54c\ub9bc\uc744 \ubcf4\ub0b4\ub294 Bash \uc2a4\ud06c\ub9bd\ud2b8\uc785\ub2c8\ub2e4. bash #!\/bin\/bash # \uc774\uc804 IP\ub97c \uc800\uc7a5\ud560 \ud30c\uc77c \uacbd\ub85c PREVIOUS_IP_FILE=”\/tmp\/previous_ip.txt” # \uba54\uc77c \uc124\uc815 TO_EMAIL=”your_email@example.com” SMTP_SERVER=”smtp.example.com” SMTP_PORT=587 SMTP_USER=”your_email@example.com” SMTP_PASS=”your_password” # … \ub354 \ubcf4\uae30 “Ubuntu\uc5d0\uc11c IP \uc8fc\uc18c\uac00 DHCP\ub85c \ubcc0\uacbd\ub420 \ub54c \ubcc0\uacbd\ub41c IP\ub97c \uac10\uc9c0\ud558\uace0 \uc774\uba54\uc77c\ub85c \uc54c\ub9bc”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-31","post","type-post","status-publish","format-standard","hentry","category-4"],"_links":{"self":[{"href":"https:\/\/www.soon7shop.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/31","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.soon7shop.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.soon7shop.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.soon7shop.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.soon7shop.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=31"}],"version-history":[{"count":2,"href":"https:\/\/www.soon7shop.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/31\/revisions"}],"predecessor-version":[{"id":33,"href":"https:\/\/www.soon7shop.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/31\/revisions\/33"}],"wp:attachment":[{"href":"https:\/\/www.soon7shop.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=31"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.soon7shop.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=31"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.soon7shop.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=31"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}