IP数量计算 子网掩码速查

  1. CIDR 子网掩码 IP数量
  2. /20 4096IP 255.255.240.0
  3. /21 2048IP 255.255.248.0
  4. /22 1024IP 255.255.252.0
  5. /23 512IP 255.255.254.0
  6. /24 256IP 255.255.255.0
  7. /25 128IP 255.255.255.128
  8. /26 64IP 255.255.255.192
  9. /27 32IP 255.255.255.224
  10. /28 16IP 255.255.255.240
  11. /29 8IP 255.255.255.248
  12. /30 4IP 255.255.255.252

别克英朗故障代码

  1. 2 未发现钥匙,请踩离合器
  2. 3 冷却液不足请添加
  3. 4 发动机过热空调关闭
  4. 5 转向管柱锁止
  5. 6 踩刹车释放驻车制动
  6. 7 转动方向盘熄火后起动
  7. 8 重复熄火后起动
  8. 9 转动方向盘再起动
  9. 10 刹车过热
  10. 11 刹车磨损
  11. 12 车载过重
  12. 13 压缩机过热请稍后
  13. 15 高位刹车灯故障
  14. 16 请检修刹车灯
  15. 17 前大灯水平调节故障
  16. 18 左近光灯故障
  17. 19 后雾灯故障
  18. 20 右近光故障
  19. 21 检查左示宽灯
  20. 22 检查右示宽灯
  21. 23 倒车灯故障
  22. 24 牌照灯故障
  23. 25 左前转向灯故障
  24. 26 左后转向灯故障
  25. 27 右前转向灯故障
  26. 28 右后转向灯故障
  27. 35 请更换遥控钥匙电池
  28. 50 调整发动机盖
  29. 51 指南针
  30. 53 请盖紧加油盖
  31. 54 燃料有水混入请检修
  32. 56 前轮胎压不平衡
  33. 57 后轮胎压不平衡
  34. 58 冬季轮胎已识别
  35. 59 请初始化驾座车窗
  36. 60 请初始化前排客座车窗
  37. 61 请初始化左后车窗
  38. 62 请初始化右后车窗
  39. 65 车辆曾被入侵
  40. 66 请检修防盗警报器
  41. 67 转向管柱锁止请检修
  42. 68 请检修助力转向
  43. 69 请检修悬挂系统
  44. 70 请检修水平调节
  45. 71 请检修后轴
  46. 74 请检修AFL
  47. 75 请检修空调系统
  48. 79 机油不足请添加
  49. 81 请检修变速箱
  50. 82 请速更换机油
  51. 83 请检修自适应巡航系统
  52. 84 发动机动力降低
  53. 91 未发现遥控钥匙
  54. 92 未发现钥匙请踩刹车点火
  55. 93 再次关闭点火按钮
  56. 94 请换至P
  57. 95 请检修气囊
  58. 174 电池电压低

whmcs的Boleto支付模块漏洞

  1. 未使用该模块的直接删除:
  2. modules/gateways/boleto 该文件夹
  3.  
  4. 有启用该模块的则可以下载补丁
  5. www.whmcs.com/members/dl.php?type=d&id=138

firefox已经在运行,但是没有响应。如果要打开新窗口,您必须先关闭该firefox进程,或者重新启动您的系统

  1. 创建快捷方式,右键属性,添加-new-window的参数
  2. “目标” E:\Tools\mozilla_firefox\firefox.exe -new-window

whmcs follow up whmcs被黑后续跟进

whmcs官方账号强制用户重置密码 https://www.whmcs.com/members/pwreset.php ,即使在whmcs被黑后重置过。
whmcs官方建议的whmcs安全设置 http://go.whmcs.com/22/security
whmcs官方建议:
1 重命名admin文件夹
2 基本配置whmcs安全设置
3 whmcs建议用密码或身份验证以保护admin文件夹的安全。

  1. Dear Customer,
  2.  
  3. This is a follow up to the Urgent Security Alert email sent earlier this week. As you will be aware from that, we were the victim of a malicious attack which has resulted in our server being accessed, and our database being compromised.
  4.  
  5. As a security precaution, we are expiring all passwords for our client area. In order to restore access to your account, please visit the following url to reset your password:
  6. https://www.whmcs.com/members/pwreset.php
  7.  
  8. We have restored all essential services except for our forums, and resumed normal operations as quickly as possible in order to keep licensing and support channels open. We are still actively working to restore the forums, and we expect them to return to operation soon.
  9.  
  10. A full security audit and hardening was undertaken immediately following the breach, and the site remains safe to use. It is important to note that the breach we experienced was the result of a social engineering attack, and not the result of a hack or a breach in the WHMCS software.
  11.  
  12. We continue to experience a distributed denial of service attack, which has caused disruption to our public facing site. We are in the process of moving to a more expansive infrastructure which should mitigate this type of attack in the future. With this move, we will have a much stronger setup with additional layers of security, and these upgrades to our infrastructure will ultimately mean that our servers, and your data, will be better protected than ever before.
  13.  
  14. Please be aware, that in order to deliver these security upgrades, we expect some very brief downtime during the migration process. We apologize in advance for any inconvenience this may cause.
  15.  
  16. While we are all currently focused on security, we would like to take this opportunity to ask everyone to read our Security Guide @ http://go.whmcs.com/22/security
  17.  
  18. While it would be ideal for all steps to be followed, we recommend that you at least rename (http://go.whmcs.com/23/securityfolder), and apply IP protection (http://go.whmcs.com/24/securityip) and/or password protection (http://go.whmcs.com/25/securityadmin) to the admin directory.
  19.  
  20. We are continuing to work tirelessly to resume normal service and regain your trust. On behalf of everyone at WHMCS please accept my apologies for the inconvenience and we thank you for your support.
  21.  
  22. ----
  23. Matt
  24. WHMCS Limited
  25. www.whmcs.com
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