【正文】 ..............................................................................................47. 安裝防病毒軟件 ..............................................................................................47. 啟用附件阻止功能 ..........................................................................................48. 保持軟件版本最新 ..........................................................................................50. 處理病毒感染 ..................................................................................................50. 防垃圾郵件 ..................................................................................................................50. 進(jìn)行用戶教育 ..................................................................................................51. 使用 Outlook 2022 和 OWA2022 中的垃圾郵件防護(hù)功能 ..........................51. 了解垃圾郵件信任級(jí)別基礎(chǔ)架構(gòu) ..................................................................52. 限制 Exchange2022 通訊組列表 ....................................................................53. 在 Exchange 2022 SMTP 服務(wù)器中應(yīng)用不同篩選類型 ...............................53. 防 DDOS 攻擊 .............................................................................................................54. 防地址欺騙 ..................................................................................................................54. 默認(rèn)身份驗(yàn)證設(shè)置 ..........................................................................................54. 跨目錄林身份驗(yàn)證設(shè)置 ..................................................................................56. 匿名訪問設(shè)置 ..................................................................................................56. 反向域名系統(tǒng)查找 ..........................................................................................56. 防黑客入侵 ..................................................................................................................56. 維護(hù)防火墻的可用性 ......................................................................................57. 確保只有正確的通訊才能夠通過防火墻 ......................................................57. 監(jiān)視黑客入侵 ..................................................................................................58. 處理破壞安全的行為 ......................................................................................58. 安全審計(jì) ......................................................................................................................58第 3 章. 加固 EXCHANGE2022 服務(wù)器 ........................................................................606 / 123. 加固 Windows 基礎(chǔ)網(wǎng)絡(luò)架構(gòu) ....................................................................................60. 加固后端服務(wù)器 ..........................................................................................................62. 關(guān)閉無用服務(wù) ..................................................................................................63. 加固文件訪問 ACL.........................................................................................65. 更改特權(quán) ..........................................................................................................65. 啟用其它 Exchange 服務(wù) ................................................................................66. 加固前端服務(wù)器 ..........................................................................................................67. 加固前準(zhǔn)備 ......................................................................................................67. 加固服務(wù) ..........................................................................................................69. 加固文件訪問 ACL.........................................................................................70. 啟用其它 Exchange 服務(wù) ................................................................................70. 配置 Exchange 2022 URLScan.......................................................................72. 卸掉郵箱存儲(chǔ)并刪除公用文件夾存儲(chǔ) ..........................................................74. 部署 Exchange 組策略安全模板 ................................................................................75. 支持 Exchange2022 服務(wù)器角色的 AD 架構(gòu) ................................................75. 保護(hù) Exchange2022 中的服務(wù)器角色 ............................................................77. 導(dǎo)入 Exchange 組策略安全模板 ..................................................................78. 使用加固后的 Exchange 服務(wù)器 ....................................................................79第 4 章. EXCHANGE2022 服務(wù)器安全管理維護(hù) .........................................................80. 管理權(quán)限和角色劃分 ..................................................................................................80. 存儲(chǔ)管理 ......................................................................................................................81. 使用公用文件夾和郵箱的權(quán)限 ......................................................................81. 災(zāi)難恢復(fù) ......................................................................................................................82第 5 章. 保護(hù) EXCHANGE 2022 通信安全 ...................................................................82. 概述 ..............................................................................................................................82. Outlook 與 Exchange 的通信安全 ..............................................................................83. 對 Outlook 和 Exchange 服務(wù)器之間的 MAPI 連接進(jìn)行加密 .....................83. 使用 S/MIME 對郵件進(jìn)行簽名和加密 .........................................................83. 瀏覽器和 OWA 的通信安全 ......................................................................................83. 前端服務(wù)器和后端服務(wù)器之間的通信安全 ..............................................................83. 確保 SMTP 通信安全 .................................................................................................84. 使用防火墻來確保 SMTP 的安全 .................................................................84. 使用單獨(dú)的 SMTP 網(wǎng)關(guān) .................................................................................84. 防止郵件中繼 .......