92 lines
3.0 KiB
Bash
92 lines
3.0 KiB
Bash
#!/bin/bash
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set -e
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MOTD_PATH="/etc/update-motd.d/00-sysinfo"
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SCRIPT_CONTENT='#!/bin/bash
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RED="\033[0;31m"
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GREEN="\033[0;32m"
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YELLOW="\033[1;33m"
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BLUE="\033[1;34m"
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CYAN="\033[0;36m"
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RESET="\033[0m"
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MEM_STAT=$(free -m | awk '\''/^Mem:/{printf "%.1f/%.1f МБ", $3, $2}'\'')
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LOAD_AVG=$(cat /proc/loadavg | awk '\''{print $1 " " $2 " " $3}'\'')
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if command -v sensors &>/dev/null && sensors | grep -iP "Core|temp1" >/dev/null; then
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CPU_TEMP=$(sensors | grep -iP "Core|temp1" | head -n1 | awk '\''{print $NF}'\'')
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elif [[ -r /sys/class/thermal/thermal_zone0/temp ]]; then
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TEMP_RAW=$(cat /sys/class/thermal/thermal_zone0/temp)
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CPU_TEMP=$(awk "BEGIN{printf \"%.1f°C\", $TEMP_RAW/1000}")
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else
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CPU_TEMP="N/A"
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fi
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DISK_STAT=$(df -h / | awk '\''NR==2{printf "%s/%s (свободно/всего)", $4, $2}'\'')
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AUTHLOG=""
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if [[ -f /var/log/auth.log ]]; then
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AUTHLOG="/var/log/auth.log"
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elif [[ -f /var/log/secure ]]; then
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AUTHLOG="/var/log/secure"
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fi
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FAILED_IPS=""
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FAILED_LIMIT=10
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if [[ -n $AUTHLOG ]]; then
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FAILED_IPS=$(sudo grep "Failed password" "$AUTHLOG" \
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| awk "/from/ {print \$(NF-3)}" \
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| sort | uniq -c | sort -nr \
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| head -n \$FAILED_LIMIT \
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| awk "{printf \"%s: %s\\\\n\", \$2, \$1}")
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fi
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SUCCESS_IPS=""
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SUCCESS_LIMIT=10
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if [[ -n $AUTHLOG ]]; then
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SUCCESS_IPS=$(sudo grep "Accepted password" "$AUTHLOG" \
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| awk "/from/ {print \$(NF-3)}" \
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| sort | uniq -c | sort -nr \
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| head -n \$SUCCESS_LIMIT \
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| awk "{printf \"%s: %s\\\\n\", \$2, \$1}")
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fi
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echo -e "${BLUE}============ Состояние сервера ============${RESET}"
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echo -e "${YELLOW}ОЗУ: ${GREEN}${MEM_STAT}${RESET}"
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echo -e "${YELLOW}Нагрузка: ${GREEN}${LOAD_AVG}${RESET} (1/5/15 мин)"
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echo -e "${YELLOW}Диск: ${GREEN}${DISK_STAT}${RESET}"
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echo -e "${YELLOW}CPU: ${GREEN}${CPU_TEMP}${RESET}"
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echo -e "${BLUE}--- Неудачные попытки входа (IP: попытки) ---${RESET}"
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if [[ -n "$FAILED_IPS" ]]; then
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echo -e "${RED}${FAILED_IPS}${RESET}"
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else
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echo "Нет неудачных попыток."
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fi
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echo -e "${BLUE}--- Успешные входы (IP: раз) ---${RESET}"
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if [[ -n "$SUCCESS_IPS" ]]; then
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echo -e "${GREEN}${SUCCESS_IPS}${RESET}"
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else
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echo "Нет успешных входов."
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fi
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echo -e "${BLUE}=============================================${RESET}"
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'
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echo
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echo "===> Установка motd-скрипта..."
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# Требует root, если не root - перезапусти сам себя через sudo
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if [[ "$EUID" -ne 0 ]]; then
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echo "Требуются root-права. Запускаю через sudo..."
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exec sudo bash "$0" "$@"
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fi
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# Создаём файл
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echo "$SCRIPT_CONTENT" > "$MOTD_PATH"
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chmod +x "$MOTD_PATH"
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echo "===> Скрипт MOTD установлен: $MOTD_PATH"
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echo
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echo "===> Тестовый вывод:"
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bash "$MOTD_PATH"
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echo
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echo "Если сообщение красиво выводится — всё готово!"
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echo
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echo "При входе по SSH каждый раз вы будете видеть свежий статус." |