97 lines
3.6 KiB
Bash
97 lines
3.6 KiB
Bash
#!/bin/bash
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# Скрипт установки кастомного sysinfo MOTD со статистикой логинов и ключей
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TARGET_PATH="/etc/update-motd.d/zzzzz-motd-sysinfo"
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cat > "$TARGET_PATH" <<"EOF"
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#!/bin/bash
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RED="\033[0;31m"
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GREEN="\033[0;32m"
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YELLOW="\033[1;33m"
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BLUE="\033[1;34m"
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CYAN="\033[0;36m"
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RESET="\033[0m"
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# Системная статистика
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MEM_STAT=$(free -m | awk '/^Mem:/{printf "%.1f/%.1f МБ", $3, $2}')
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LOAD_AVG=$(awk '{print $1 " " $2 " " $3 " (1мин 5мин 15мин)"}' /proc/loadavg)
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if command -v sensors &>/dev/null && sensors | grep -iP "Core|temp1" >/dev/null; then
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CPU_TEMP=$(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, $2}')
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# Локаль для корректного парсинга дат
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DATE_24H_AGO=$(LC_TIME=C date --date="24 hours ago" "+%b %-d")
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CURRENT_DATE=$(LC_TIME=C date "+%b %-d")
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HOUR_24H_AGO=$(date --date="24 hours ago" "+%H")
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CURRENT_HOUR=$(date "+%H")
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get_recent_logs() {
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local AUTHLOG=""
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if [[ -f /var/log/auth.log ]]; then
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AUTHLOG="/var/log/auth.log"
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elif [[ -f /var/log/secure ]]; then
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AUTHLOG="/var/log/secure"
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fi
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if [[ -n "$AUTHLOG" ]]; then
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awk -v d1="$DATE_24H_AGO" -v d2="$CURRENT_DATE" -v h1="$HOUR_24H_AGO" -v h2="$CURRENT_HOUR" '
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{
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line_date = $1 " " $2
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line_hour = substr($3,1,2)
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if (line_date == d1 && line_date != d2) {
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if (line_hour >= h1) print $0
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}
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else if (line_date == d2) {
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if (line_hour <= h2) print $0
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}
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else if (line_date > d1 && line_date < d2) {
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print $0
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}
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}
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' "$AUTHLOG"
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elif command -v journalctl &>/dev/null; then
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journalctl -u ssh -u sshd --since "24 hours ago" --no-pager 2>/dev/null
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fi
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}
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RECENT_LOG=$(get_recent_logs)
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# 1. Неудачные попытки
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FAILED_IPS=$(echo "$RECENT_LOG" | grep "Failed " | awk '{for(i=1;i<NF;i++) if($i=="from") print $(i+1)}' | grep -E '^[0-9]+\.[0-9]+' | sort | uniq -c | sort -nr | head -n 5 | awk '{printf "%s: %s\n", $2, $1}')
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# 2. Успешные входы (всего)
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SUCCESS_IPS=$(echo "$RECENT_LOG" | grep "Accepted " | awk '{for(i=1;i<NF;i++) if($i=="from") print $(i+1)}' | grep -E '^[0-9]+\.[0-9]+' | sort | uniq -c | sort -nr | head -n 5 | awk '{printf "%s: %s\n", $2, $1}')
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echo -e "\n\n${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}${RESET}"
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echo -e "${YELLOW}Диск: ${GREEN}${DISK_STAT}${RESET}"
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echo -e "${YELLOW}CPU: ${GREEN}${CPU_TEMP}${RESET}"
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echo -e "\n${BLUE}--- Неудачные попытки за 24ч (IP: кол-во) ---${RESET}"
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[[ -n "$FAILED_IPS" ]] && echo -e "${RED}${FAILED_IPS}${RESET}" || echo "Нет данных."
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echo -e "\n${BLUE}--- Успешные входы за 24ч (IP: кол-во) ---${RESET}"
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[[ -n "$SUCCESS_IPS" ]] && echo -e "${GREEN}${SUCCESS_IPS}${RESET}" || echo "Нет данных."
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if [[ -n "$SSH_CONNECTION" ]]; then
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CURRENT_IP=$(echo $SSH_CONNECTION | awk '{print $1}')
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echo -e "\n${GREEN}Вы успешно вошли как ${USER} с IP: ${CURRENT_IP}${RESET}"
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else
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echo -e "\n${GREEN}Вы успешно вошли как ${USER} (Локальный вход)${RESET}"
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fi
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echo -e "${BLUE}=============================================${RESET}"
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EOF
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chmod +x "$TARGET_PATH"
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bash "$TARGET_PATH" |