关于larbin useragent 与 robot.txt设置
更改larbin的useragent
由于larbin默认遵守robots.txt,所以如果我要下载百度百科的话就不行，如下百度百科的robots.txt:User-agent: Baiduspider
Allow: /
Disallow: /w?
User-agent: Googlebot
Allow: /
Disallow: /update
Disallow: /history
Disallow: /usercard
Disallow: /usercenter
User-agent: MSNBot
Allow: /
User-Agent: YoudaoBot
Allow: /
User-agent: *
Disallow: /
除了robots.txt中提到的几个爬虫外，都不允许下载，解决方法：1.可简单的修改larbin.conf中的userAgent为这几个爬虫中的一个 2.不修改userAgent,做一些代码修改，使得是否遵守robots.txt是可配置的
设置robot.txt防止爬虫抓取网页
全球互联网上有多少搜索引擎机器人（爬行蜘蛛）在工作？这个问题很难回答，你要知道有很多人开发了自己的机器人来窃取别人的信息，也有很多为了其他的利益而开发了机器人。这些机器人，都是垃圾机器人，不但占用了网站的带宽，而且网站的用户信息都可能已经被偷走了。这里，我根据国外同行的一些小技巧介绍下如何给自己的添加robot.txt并进行设置，来彻底与垃圾搜索引擎机器人说Goodbye。首先，打开记事本，复制下面这些代码。代码解释：下面是126个国际上公认的垃圾搜索引擎机器人、蜘蛛、搜索代理等，通过disallow:/来完全禁止他们爬行网站。
User-agent: larbin
Disallow: /
User-agent: b2w/0.1
Disallow: /
User-agent: Copernic
Disallow: /
User-agent: psbot
Disallow: /
User-agent: Python-urllib
Disallow: /
User-agent: Googlebot-Image
Disallow: /
User-agent: URL_Spider_Pro
Disallow: /
User-agent: CherryPicker
Disallow: /
User-agent: EmailCollector
Disallow: /
User-agent: EmailSiphon
Disallow: /
User-agent: WebBandit
Disallow: /
User-agent: EmailWolf
Disallow: /
User-agent: ExtractorPro
Disallow: /
User-agent: CopyRightCheck
Disallow: /
User-agent: Crescent
Disallow: /
User-agent: SiteSnagger
Disallow: /
User-agent: ProWebWalker
Disallow: /
User-agent: CheeseBot
Disallow: /
User-agent: LNSpiderguy
Disallow: /
User-agent: Alexibot
Disallow: /
User-agent: Teleport
Disallow: /
User-agent: TeleportPro
Disallow: /
User-agent: MIIxpc
Disallow: /
User-agent: Telesoft
Disallow: /
User-agent: Website Quester
Disallow: /
User-agent: WebZip
Disallow: /
User-agent: moget/2.1
Disallow: /
User-agent: WebZip/4.0
Disallow: /
User-agent: WebStripper
Disallow: /
User-agent: WebSauger
Disallow: /
User-agent: WebCopier
Disallow: /
User-agent: NetAnts
Disallow: /
User-agent: Mister PiX
Disallow: /
User-agent: WebAuto
Disallow: /
User-agent: TheNomad
Disallow: /
User-agent: WWW-Collector-E
Disallow: /
User-agent: RMA
Disallow: /
User-agent: libWeb/clsHTTP
Disallow: /
User-agent: asterias
Disallow: /
User-agent: httplib
Disallow: /
User-agent: turingos
Disallow: /
User-agent: spanner
Disallow: /
User-agent: InfoNaviRobot
Disallow: /
User-agent: Harvest/1.5
Disallow: /
User-agent: Bullseye/1.0
Disallow: /
User-agent: Mozilla/4.0 (compatible; BullsEye; Windows 95)
Disallow: /
User-agent: Crescent Internet ToolPak HTTP OLE Control v.1.0
Disallow: /
User-agent: CherryPickerSE/1.0
Disallow: /
User-agent: CherryPickerElite/1.0
Disallow: /
User-agent: WebBandit/3.50
Disallow: /
User-agent: NICErsPRO
Disallow: /
User-agent: Microsoft URL Control – 5.01.4511
Disallow: /
User-agent: Not Your Business!
Disallow: /
User-agent: Hidden-Referrer
Disallow: /
User-agent: DittoSpyder
Disallow: /
User-agent: Foobot
Disallow: /
User-agent: WebmasterWorldForumBot
Disallow: /
User-agent: SpankBot
Disallow: /
User-agent: BotALot
Disallow: /
User-agent: lwp-trivial/1.34
Disallow: /
User-agent: lwp-trivial
Disallow: /
User-agent: BunnySlippers
Disallow: /
User-agent: Microsoft URL Control – 6.00.8169
Disallow: /
User-agent: URLy Warning
Disallow: /
User-agent: Wget/1.6
Disallow: /
User-agent: Wget/1.5.3
Disallow: /
User-agent: Wget
Disallow: /
User-agent: LinkWalker
Disallow: /
User-agent: cosmos
Disallow: /
User-agent: moget
Disallow: /
User-agent: hloader
Disallow: /
User-agent: humanlinks
Disallow: /
User-agent: LinkextractorPro
Disallow: /
User-agent: Offline Explorer
Disallow: /
User-agent: Mata Hari
Disallow: /
User-agent: LexiBot
Disallow: /
User-agent: Web Image Collector
Disallow: /
User-agent: The Intraformant
Disallow: /
User-agent: True_Robot/1.0
Disallow: /
User-agent: True_Robot
Disallow: /
User-agent: BlowFish/1.0
Disallow: /
User-agent: JennyBot
Disallow: /
User-agent: MIIxpc/4.2
Disallow: /
User-agent: BuiltBotTough
Disallow: /
User-agent: ProPowerBot/2.14
Disallow: /
User-agent: BackDoorBot/1.0
Disallow: /
User-agent: toCrawl/UrlDispatcher
Disallow: /
User-agent: WebEnhancer
Disallow: /
User-agent: suzuran
Disallow: /
User-agent: TightTwatBot
Disallow: /
User-agent: VCI WebViewer VCI WebViewer Win32
Disallow: /
User-agent: VCI
Disallow: /
User-agent: Szukacz/1.4
Disallow: /
User-agent: QueryN Metasearch
Disallow: /
User-agent: Openfind data gathere
Disallow: /
User-agent: Openfind
Disallow: /
User-agent: Xenu’s Link Sleuth 1.1c
Disallow: /
User-agent: Xenu’s
Disallow: /
User-agent: Zeus
Disallow: /
User-agent: RepoMonkey Bait & Tackle/v1.01
Disallow: /
User-agent: RepoMonkey
Disallow: /
User-agent: Microsoft URL Control
Disallow: /
User-agent: Openbot
Disallow: /
User-agent: URL Control
Disallow: /
User-agent: Zeus Link Scout
Disallow: /
User-agent: Zeus 32297 Webster Pro V2.9 Win32
Disallow: /
User-agent: Webster Pro
Disallow: /
User-agent: EroCrawler
Disallow: /
User-agent: LinkScan/8.1a Unix
Disallow: /
User-agent: Keyword Density/0.9
Disallow: /
User-agent: Kenjin Spider
Disallow: /
User-agent: Iron33/1.0.2
Disallow: /
User-agent: Bookmark search tool
Disallow: /
User-agent: GetRight/4.2
Disallow: /
User-agent: FairAd Client
Disallow: /
User-agent: Gaisbot
Disallow: /
User-agent: Aqua_Products
Disallow: /
User-agent: Radiation Retriever 1.1
Disallow: /
User-agent: WebmasterWorld Extractor
Disallow: /
User-agent: Flaming AttackBot
Disallow: /
User-agent: Oracle Ultra Search
Disallow: /
User-agent: MSIECrawler
Disallow: /
User-agent: PerMan
Disallow: /
User-agent: searchpreview
Disallow: /
然后保存这个记事本，命名为robot.txt
把这个保存好的文件上传到你的网站根目录下，也就是你的网站index.htm的相同目录下。
大功告成。
就这么简单，利用robot.txt设置，可以完全把垃圾机器人和蜘蛛屏蔽掉，他们以后再也不会来到你的网站为非作歹了。
参考：
1.http://blog.sina.com.cn/s/blog_643010760100jyn9.html2.http://www.maozstudio.com/blog/bad-robot-list/