Linux服务器巡检脚本

⚙️系统基本信息： 自动获取操作系统、内核版本、主机名、运行时间等信息，为后续诊断提供基础数据。

🖥️硬件检测： 检测CPU型号、核心数、内存总量、硬盘使用情况等，帮助你全面了解服务器硬件状态。

📈性能监控： 实时监控内存使用率、负载情况、磁盘利用率等关键指标，预防系统过载风险。

🔒配置检查： 自动检查SSH配置、防火墙状态以及其他安全参数，确保系统安全稳固。

🌐网络信息： 收集IP地址、活动网卡等信息，方便进行网络故障排查

Linux

#!/bin/bash

# 定义输出文件
REPORT_FILE="system_inspection_$(date +%Y%m%d%H%M).html"

# 开始生成HTML报告
cat > $REPORT_FILE <<EOF
<html>
<head>
<title>Linux系统巡检报告</title>
<meta charset="UTF-8">
<style>
body { font-family:"Microsoft YaHei", sans-serif; margin:20px; }
h1 { color:#2E8B57; }
h2 { color:#2c3e50; border-bottom: 2px solid #2c3e50; padding-bottom: 5px; }

/*统一表格列宽*/
table { border-collapse:collapse; width:100%; margin-bottom:20px; table-layout:fixed; /*强制列宽均等*/ }

/*统一单元格格式*/
th, td {
    border:1px solid #dddddd;
    padding:12px;
    text-align:center;      /*默认居中对齐*/
    vertical-align:middle; /*上下居中对齐*/
  }

/*第一列左对齐*/
/*设置列宽，确保列宽均等*/
th:first-child, td:first-child {
    text-align:left;
    width:20%; /*让第一列占据相同的宽度*/
  }
th:nth-child(2), td:nth-child(2) {
    width:40%; /*第二列*/
  }
th:nth-child(3), td:nth-child(3) {
    width:40%; /*第三列*/
  }

th { background-color:#f8f9fa; }
.warning { background-color:#fff3cd; }
.critical { background-color:#f8d7da; }
.ok { background-color:#d4edda; }
/*响应式表格*/
@media (max-width:768px) {
    table, th, td { font-size:12px; }
  }
</style>
</head>
<body>
<h1>Linux系统巡检报告</h1>
<p>生成时间: $(date "+%Y-%m-%d %H:%M:%S")</p>
EOF

# 函数：添加报告段落
add_section() {
  echo "<h2>$1</h2>" >> $REPORT_FILE
  echo "<table>" >> $REPORT_FILE
}

# 函数：结束段落
end_section() {
  echo "</table>" >> $REPORT_FILE
}

# 函数：添加表格行
add_row() {
  echo "<tr><th>$1</th><td>$2</td><td>$3</td></tr>" >> $REPORT_FILE
}

##############################
# 1. 主机基本信息
##############################
add_section "主机基本信息"
{
  echo "<tr><th>检查项</th><th>值</th><th>状态</th></tr>"
  os_name=$(grep PRETTY_NAME /etc/os-release | cut -d= -f2 | tr -d '"')
  add_row "操作系统" "$os_name" "正常"
  kernel_version=$(uname -r)
  add_row "内核版本" "$kernel_version" "正常"
  uptime_info=$(uptime -p)
  add_row "运行时间" "$uptime_info" "正常"
  hostname=$(hostname -f)
  add_row "主机名" "$hostname" "正常"
} >> $REPORT_FILE
end_section

##############################
# 2. 硬件信息
##############################
add_section "硬件信息"
{
  echo "<tr><th>检查项</th><th>值</th><th>状态</th></tr>"
  cpu_model=$(grep "model name" /proc/cpuinfo | uniq | cut -d: -f2 | sed 's/^ //')
  cpu_cores=$(grep -c "processor" /proc/cpuinfo)
  add_row "CPU型号" "$cpu_model" "正常"
  add_row "CPU核心数" "$cpu_cores" "正常"
  mem_total=$(free -h | awk '/Mem/{print $2}')
  add_row "总内存" "$mem_total" "正常"
  swap_total=$(free -h | awk '/Swap/{print $2}')
  add_row "交换内存" "$swap_total" "正常"
  disk_info=$(df -hT / | awk 'NR==2{print $2, $3"/"$4}')
  add_row "根分区使用" "$disk_info" "正常"
} >> $REPORT_FILE
end_section

##############################
# 3. 性能指标
##############################
add_section "性能指标"
{
  echo "<tr><th>检查项</th><th>值</th><th>状态</th></tr>"
  mem_usage=$(free | awk '/Mem/{printf "%.1f%%", $3/$2*100}')
  add_row "内存使用率" "$mem_usage" "正常"
  load_avg=$(uptime | awk -F 'load average:' '{print $2}')
  add_row "15分钟负载" "$load_avg" "正常"
  disk_usage=$(df -h / | awk 'NR==2{print $5}')
  usage_percent=${disk_usage%\%}
  if [ $usage_percent -gt 90 ]; then
    status="<div class='critical'>critical</div>"
  elif [ $usage_percent -gt 80 ]; then
    status="<div class='warning'>warning</div>"
  else
    status="<div class='ok'>ok</div>"
  fi
  add_row "根分区使用率" "$disk_usage" "$status"
} >> $REPORT_FILE
end_section

##############################
# 4. 安全配置检查
##############################
add_section "安全配置检查"
{
  echo "<tr><th>检查项</th><th>值</th><th>状态</th></tr>"
  ssh_root_login=$(grep "^PermitRootLogin" /etc/ssh/sshd_config | awk '{print $2}')
  if [ "$ssh_root_login" == "yes" ]; then
    status="<div class='warning'>warning</div>"
  else
    status="<div class='ok'>ok</div>"
  fi
  add_row "SSH Root登录" "$ssh_root_login" "$status"

  ssh_password_auth=$(grep "^PasswordAuthentication" /etc/ssh/sshd_config | awk '{print $2}')
  if [ "$ssh_password_auth" == "yes" ]; then
    status="<div class='warning'>warning</div>"
  else
    status="<div class='ok'>ok</div>"
  fi
  add_row "SSH密码认证" "$ssh_password_auth" "$status"

  firewall_status=$(systemctl is-active firewalld 2>/dev/null || echo "inactive")
  if [ "$firewall_status" == "active" ]; then
    status="<div class='ok'>ok</div>"
  else
    status="<div class='warning'>warning</div>"
  fi
  add_row "防火墙状态" "$firewall_status" "$status"
} >> $REPORT_FILE
end_section

##############################
# 5. 网络信息
##############################
add_section "网络信息"
{
  echo "<tr><th>检查项</th><th>值</th><th>状态</th></tr>"
  ip_info=$(hostname -I)
  add_row "IP地址" "$ip_info" "正常"
  net_status=$(ip link show | grep "state UP" | wc -l)
  add_row "活动网卡数量" "$net_status" "正常"
} >> $REPORT_FILE
end_section

# 结束HTML报告
cat >> $REPORT_FILE <<EOF
</body>
</html>
EOF

echo "巡检报告已生成: $REPORT_FILE"