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#!/bin/bash
# FailZero Early Warning System (FZ EWS)
# Monitor critical hosts and alert on Telegram on failure
# === INSERT YOUR TELEGRAM CREDENTIALS BELOW ===
BOT_TOKEN="8031184325:AAEGj3gzwYF8HaLjWHVe0gOG5bzo63tcRbU"
CHAT_ID="1559582356"
# === INSERT YOUR CRITICAL HOSTNAMES BELOW ===
CRITICAL_HOSTS=(
"da.genesishostingtechnologies.com"
"zcluster.technodrome1.sshjunkie.com"
"zcluster.technodrome2.sshjunkie.com"
"krang.core.sshjunkie.com"
"tt.themediahub.org"
"toot.themediahub.org"
"chatwithus.live"
"genesishostingtechnologies.com"
"portal.genesishostingtechnologies.com"
"brandoncharles.us"
# Add more hostnames here, one per line inside quotes
)
LOG_FILE="/home/doc/fz_ews.log"
COOLDOWN_FILE="/home/doc/fz_ews_cooldown"
# Cooldown period in seconds to prevent alert spam (e.g., 3600 = 1 hour)
ALERT_COOLDOWN=3600
send_telegram_alert() {
local message="$1"
curl -s -X POST "https://api.telegram.org/bot$BOT_TOKEN/sendMessage" \
-d chat_id="$CHAT_ID" \
-d text="🚨 FailZero EWS Alert: $message" > /dev/null
}
log() {
echo "$(date '+%Y-%m-%d %H:%M:%S') - $1" >> "$LOG_FILE"
}
check_cooldown() {
local host="$1"
local now=$(date +%s)
local last_alert=$(grep "^$host " "$COOLDOWN_FILE" 2>/dev/null | awk '{print $2}')
if [[ -z "$last_alert" ]]; then
return 0
fi
local elapsed=$((now - last_alert))
if (( elapsed > ALERT_COOLDOWN )); then
return 0
else
return 1
fi
}
update_cooldown() {
local host="$1"
local now=$(date +%s)
# Remove existing entry for host if any
grep -v "^$host " "$COOLDOWN_FILE" 2>/dev/null > "${COOLDOWN_FILE}.tmp"
mv "${COOLDOWN_FILE}.tmp" "$COOLDOWN_FILE"
# Append new timestamp
echo "$host $now" >> "$COOLDOWN_FILE"
}
check_host() {
local host="$1"
if ping -c 2 -W 3 "$host" > /dev/null 2>&1; then
log "$host is UP"
else
log "$host is DOWN"
if check_cooldown "$host"; then
send_telegram_alert "$host is DOWN or unreachable!"
update_cooldown "$host"
else
log "Cooldown active for $host; alert suppressed"
fi
fi
}
main() {
for host in "${CRITICAL_HOSTS[@]}"; do
check_host "$host"
done
}
main
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