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一次非常不愉快的购买DELL笔记本的经历

对DELL印象一直不错,直至最近的一次购买经历,让我非常失望。


公司采购一批笔记本电脑,选择了DELL Latitude系列商用机,配置不高,价格不菲,但外形不错,大气,关键服务好。我们购买了不错的服务,包括全面保护、三年保、硬盘保留服务什么的。


购买过程不表,不几天到货了,接下来工作就是逐一开机,部署OS了。

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Tags: dell 屏幕亮点

分类:一片汪洋大海 | 固定链接 | 评论: 4 | 引用: 0 | 查看次数: 5298

关于SonicWall DHCP Server Network Pre-Discovery

SonicWall防火墙
Model:PRO 4060
Fireware Version: SonicOS Enhanced 4.2.1.0-20e
ROM Version: SonicROM 3.1.0.2

管理菜单Network > DHCP Server

DHCP Server Settings 中有项 Enable DHCP Server Network Pre-Discovery
新购的SonicWall NSA2400中未提供这一菜单。搜索了些关于这一功能的资料。

Select Enable Conflict Detection to turn on automatic DHCP scope conflict detection on each zone.
Compatible with Conflict Detection
– Currently, the SonicWALL DHCP server performs server-side conflict detection when this feature is enabled. The advantage of server-side conflict detection is that it detects conflicts even when the DHCP client does not run client-side conflict detection. However, if there are a lot of DHCP clients on the network, server-side conflict detection can result in longer waits for a full IP address allocation to complete.

Select Enable DHCP Server Network Pre-Discovery to have the DHCP server scan for other DHCP server networks. The following options can be modified to customize the performance of DHCP server network pre-discovery:
–DHCP Server Conflict Detect Period: Sets how often the DHCP server scans for other networks. The default is 300 seconds.
–Number of DHCP resources to discover: Sets the number of DHCP networks that are scanned for. The default is 10.
–Timeout for conflicted resource to be rechecked: Sets the duration of time after which conflicted resources are re-checked. The default is 1800 seconds.
–Timeout for available resource to be rechecked: Sets the duration of time after which avialable resources are re-checked. The default is 600 seconds.

Note:Conflict detection and network pre-discovery are not performed for an IP address which belongs to a “relayed” subnet scope. The DHCP server only performs a conflict detection ICMP check for a subnet range attached to its interface.

Normally, upon receiving a DHCP DISCOVER request from a prospective DHCP server of this device will select an IP to provide in response to the request. Prior to communicating the new IP, the DHCP server will first send out ARP and ICMP requests for the selected IP address to determine if any other device is already using the IP address in the network. If another device does respond, the DHCP server will select an alternate IP address to offer. This setting allows the device to send out ARPs and ICMP requests ahead of time to determine which IP address are already used in a network. This setting allows for faster DHCP offers to be made allowing the device to proactively perform network IP address conflict detection before rather than after a request is received.

只理解了个大概意思,求详解!

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Tags: SonicWall DHCP Server Network Pre-Discovery

分类:一本学习笔记 | 固定链接 | 评论: 150 | 引用: 0 | 查看次数: 16182

Failed to enable virtual adapter

同事欲通过VPN连接到国外的银行提供支持,使用 Cisco VPN Client,报错
Secure VPN Connection terminated locally by the Client.
Reason 442: Failed to enable Virtual Adapter.

解决方法是 Disable Internet Connection Sharing (ICS) service:
“开始” – “运行” – “services.msc” – 停止 “Internet Connection Sharing (ICS)”

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分类:一本学习笔记 | 固定链接 | 评论: 2 | 引用: 0 | 查看次数: 9012

南京集体户如何办理初婚未育证明

虽然江苏省已废除了生育头胎宝宝要求准生证的制度,但在实际执行中,尤其是苏北小城市,人为附加很多不规范的小规定。据讲这个计划生育是计生部门、医院、配出所联动的,虽说口称不强制办理准生证,但若不办,可能会给以后办事时增加重重障碍,比如给孩子上户口等等,到时可能会面临罚款,要找关系送烟...

没办法,还是办吧,办之前在网上做了不少功课,然后请了3小时假,按流程办了这些事,还算顺利,效率还是很高的。
1.将结婚证、身份证等证件复印数份备用;
2.在南京人事人才网上下载《婚育基础信息登记表》,填好后请单位盖章;
3.请工作单位出具一份初婚未育的情况证明;
4.到玄武公安服务大厅将户口簿上的未婚改为已婚;

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分类:一片汪洋大海 | 固定链接 | 评论: 0 | 引用: 0 | 查看次数: 9346

Cisco VPN Client 下载

通过搜索,在“走在雨中”的博客 http://www.zzyz.org/
获得到下载地址:
http://samsten.net/work/cvpnc/
有32bit、64bit、Linux、Mac下的版本
相当不错,感谢

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Tags: Cisco VPN Client 下载

分类:一片汪洋大海 | 固定链接 | 评论: 1 | 引用: 0 | 查看次数: 7969