[{"data":1,"prerenderedAt":327},["ShallowReactive",2],{"blog:vpn-terms-glossary":3},{"zh-CN":4,"en":173},{"blocks":5,"faq":157},[6,9,11,13,17,19,42,44,47,49,68,70,72,75,77,93,95,98,100,116,118,120,122,125,127,146,148,150,153,155],{"type":7,"html":8},"p","节点、机场、无日志、断线重连——这些词在科学上网相关的文章里到处都是，但很少有人愿意停下来解释它们到底指什么。结果就是，一篇教程读到一半就冒出一个没见过的词，读起来比解决问题本身还费劲。",{"type":7,"html":10},"这篇是一本小词典，按主题分组，把常见术语换成大白话讲一遍。不用一次全部背下来，遇到不认识的词回来查一下就够了。",{"type":7,"html":12},"分组的逻辑很简单：先是整个互联网都在用的基础词，然后是这个圈子自己的行话，接下来是判断连接好不好用的词、隐私安全相关的词，最后是挑订阅时会碰到的词。按这个顺序读下来，大部分文章里出现的术语都能对上号。",{"type":14,"id":15,"html":16},"h2","bp-basics","先搞懂这几个网络基础词",{"type":7,"html":18},"这几个词不是科学上网专属，是整个互联网都在用的基础说法。先弄懂它们，后面的词才不会绕。",{"type":20,"align":21,"head":23,"rows":26},"table",[22,22],null,[24,25],"词","说的是什么",[27,30,33,36,39],[28,29],"IP 地址","你的设备在网络上的门牌号，网站靠它知道把内容送到哪",[31,32],"DNS","把网址翻译成 IP 地址的"电话簿"，网页打不开有时候是它没查到",[34,35],"带宽","一条线路同时能塞下多少数据，类似水管的粗细",[37,38],"端口","同一个 IP 地址下，区分不同服务的编号，类似一栋楼里的门牌号",[40,41],"节点 \u002F 服务器","数据在到达目标网站之前，经过或落脚的一台机器",{"type":7,"html":43},"带宽和延迟经常被当成一回事，其实说的是两件不同的事：带宽决定"一次能塞下多少"，延迟决定"来回要多久"。带宽很大但延迟很高，大文件下载得很快，但打开一个页面依然要等——这两个数字要分开看，才不会被"网速"这个模糊的说法带偏。",{"type":14,"id":45,"html":46},"bp-scene","科学上网圈子里天天出现的词",{"type":7,"html":48},"这几个词是这个圈子里的"行话"，搞懂了之后看别的文章会顺很多。",{"type":20,"align":50,"head":51,"rows":52},[22,22],[24,25],[53,56,59,62,65],[54,55],"科学上网","泛指绕开网络限制访问境外网站的各种做法，是个统称，不是某一种具体技术",[57,58],"翻墙","和科学上网基本是同一个意思，说法更口语化",[60,61],"机场","按流量或时长订阅的代理服务，通常需要自己手动配置客户端和线路",[63,64],"加速器","强调"让某个应用更好用"的工具，常见于游戏和视频场景，一键连接是常见形态",[66,67],"出口 IP","连接之后，网站看到的"你的位置"对应的那个 IP，不是你设备本身真正的 IP",{"type":7,"html":69},"机场和 VPN 类工具常被放在一起比较，两者的定位和使用方式其实不一样，VPN 和机场有什么区别这篇专门讲了这件事。"加速器"和"VPN"很多时候是同一类工具换了个面向场景的名字——面向游戏和视频宣传时更常叫加速器，面向"绕开限制"这件事本身时更常叫 VPN，底层原理没有本质区别。",{"type":7,"html":71},"网上常见的"免费节点"，大多来自机场资源被截流或者二次分享，谁在用、用来做什么完全没人管，稳定性和安全性都没有保障，和正规渠道的订阅制服务是两件事，不能划等号。",{"type":14,"id":73,"html":74},"bp-quality","判断连接好不好用的词",{"type":7,"html":76},"这几个词是用来描述"网络到底哪里不舒服"的。平时抱怨"网卡"的时候，实际说的通常是其中一个。",{"type":20,"align":78,"head":79,"rows":80},[22,22],[24,25],[81,84,87,90],[82,83],"延迟","数据来回一趟花的时间，数字越小反应越快",[85,86],"丢包","发出去的数据有一部分根本没到，不是慢，是真的少了",[88,89],"抖动","延迟这个数字本身不稳定，一会儿快一会儿慢",[91,92],"断线重连","连接掉了之后工具自动重新连上的过程，这段时间通常会短暂没有网络",{"type":7,"html":94},"这四个词具体怎么分辨、分别对应什么感觉，\u003Ca href=\"\u002Fblog\u002Fwhat-is-latency\u002F\">延迟、丢包、抖动：三个词说清楚\u003C\u002Fa>拆得更细；经常无缘无故断线的，VPN 老是自动断开怎么办有单独的排查思路。",{"type":14,"id":96,"html":97},"bp-security","隐私和安全相关的词",{"type":7,"html":99},"这几个词决定了一个工具值不值得信任，挑工具的时候比速度更值得花时间看。",{"type":20,"align":101,"head":102,"rows":103},[22,22],[24,25],[104,107,110,113],[105,106],"无日志政策","服务商承诺不记录你具体访问了什么、什么时候访问的",[108,109],"加密","数据在传输路上被打乱成除了两端之外没人看得懂的样子",[111,112],"断网保护","连接意外掉线时自动切断设备联网，避免流量在没有保护的情况下裸奔出去；是否具备这个功能，值得在挑选时问清楚",[114,115],"DNS 泄漏","该走加密线路的网址查询，意外走了本地网络，暴露了你实际访问过什么",{"type":7,"html":117},"这几个词单独看都不难，放在一起就是判断一个服务靠不靠谱的基本框架：说不清楚自己的无日志政策具体包含什么范围、回避加密方式的问题、连断网保护有没有都答不上来的服务，大概率没有把这部分当回事。",{"type":119},"downloads",{"type":7,"html":121},"无日志政策具体应该看哪些地方、加密到底保护了什么，无日志政策到底意味着什么和VPN 加密入门两篇分别讲了。怀疑自己遇到 DNS 泄漏，DNS 泄漏是什么，怎么自查有具体的自查步骤。",{"type":14,"id":123,"html":124},"bp-buying","买 VPN 之前会遇到的词",{"type":7,"html":126},"挑一个订阅之前，这几个词决定了你到底在为什么付钱。",{"type":20,"align":128,"head":129,"rows":130},[22,22],[24,25],[131,134,137,140,143],[132,133],"订阅制","按月或按年付费持续使用，而不是一次性买断",[135,136],"VIP \u002F 会员","比基础版本更高的档位，通常对应更高速度或更多可用设备数",[138,139],"免费试用","注册之后能免费用一段时间，通常是判断一个工具是否适合自己最省钱的方式",[141,142],"退款保证","用了一段时间不满意，在承诺的期限内可以要求退款",[144,145],"多设备","一份订阅能不能同时在手机、电脑等几台设备上登录使用",{"type":7,"html":147},"这几个词的共同作用，是帮你在付钱之前就把"这份订阅到底买了什么"想清楚，而不是等用了一个月才发现设备数不够用，或者退款条件比想象的严格。",{"type":7,"html":149},"\u003Ca href=\"\u002Ffeatures\u002F\">快橙\u003C\u002Fa>在这几项上的做法是：注册后每天有免费试用时长，一份订阅可以同时覆盖多台设备，还有 30 天退款保证——不满意可以在这个期限内申请退款，不用一次性押上一整年的钱去赌。",{"type":14,"id":151,"html":152},"bp-final","总结",{"type":7,"html":154},"科学上网相关的词看起来很多，但大部分可以按"基础网络""圈子行话""连接质量""隐私安全""购买相关"这五类去理解。遇到不认识的词，大概能猜到它属于哪一类，再回来查具体定义就快很多。这本词典不追求穷尽所有说法，只挑最常在文章和客服对话里出现的那一批——生僻的行业术语，普通用户其实不需要记。",{"type":7,"html":156},"如果只想先把工具用起来，不想一次性搞懂所有术语，也完全可以：\u003Ca href=\"\u002Forder\u002F\">快橙\u003C\u002Fa>一键连接，不需要先弄懂节点这些概念才能用。注册后每天有免费试用时长，先用起来，遇到不确定的词再回来这篇查。",[158,161,164,167,170],{"q":159,"a":160},"科学上网和翻墙是不是一个意思？","基本是。两个词说的是同一类做法，翻墙更口语化，科学上网是相对正式一点的说法，没有本质区别。",{"q":162,"a":163},"机场和 VPN 类工具是不是同一种东西？","不完全是。机场通常需要自己手动配置客户端和线路，VPN 类的一键连接工具把这一步简化掉了。具体区别见VPN 和机场有什么区别。",{"q":165,"a":166},"节点越多是不是就越好用？","不一定。节点数量不能直接换算成好用，能不能连上一条稳定的线路才是关键。这篇词典里「延迟」「丢包」「抖动」三个词，就是用来判断这件事的。",{"q":168,"a":169},"无日志政策要怎么确认是真的？","作为普通用户，能做的主要是看服务商公开承诺的内容是否清楚、范围是否具体，而不是只看一句口号。",{"q":171,"a":172},"不想先背这些术语，可以直接用吗？","可以。\u003Ca href=\"\u002Forder\u002F\">快橙\u003C\u002Fa>一键连接，不需要先弄懂这些词才能用；真正需要判断问题的时候，再回来查对应的词就够了。",{"blocks":174,"faq":311},[175,177,179,181,183,185,205,207,209,211,227,229,231,233,235,251,253,255,257,273,275,276,278,280,282,301,303,305,307,309],{"type":7,"html":176},"Node, exit IP, jitter, no-logs policy — these terms are everywhere in articles about getting around network restrictions, but almost nothing explains what they actually mean. The result is a tutorial that throws an unfamiliar term at you halfway through, and reading it becomes more work than the problem it was supposed to solve.",{"type":7,"html":178},"This is a small glossary, grouped by theme, that puts common terms into plain language. You don't need to memorize all of it at once — come back and look up whatever you hit.",{"type":7,"html":180},"The grouping is simple: basic terms the whole internet uses, then this scene's own jargon, then the words that describe whether a connection is any good, then privacy and security terms, then the words you run into right before buying a subscription. Read in that order, and most terms you meet in other articles will already make sense.",{"type":14,"id":15,"html":182},"The basic network terms to get straight first",{"type":7,"html":184},"These aren't specific to circumventing restrictions — they're basic terms the whole internet runs on. Get these straight first, and everything after this section will be easier to follow.",{"type":20,"align":186,"head":187,"rows":190},[22,22],[188,189],"Term","What it actually means",[191,194,196,199,202],[192,193],"IP address","Your device's street address on the network — how a site knows where to send its response",[31,195],"The "phone book" that translates a web address into an IP address; a page that won't load sometimes just failed this lookup",[197,198],"Bandwidth","How much data a route can carry at once — like the width of a pipe",[200,201],"Port","A number that tells apart different services under the same IP address, like a unit number inside one building",[203,204],"Node \u002F server","A machine your data passes through, or lands on, on the way to its destination",{"type":7,"html":206},"Bandwidth and latency get treated as the same thing constantly, but they measure two different things: bandwidth is how much a route can carry at once, latency is how long a round trip takes. High bandwidth with high latency means large files download fast but a page still takes a beat to open — worth separating the two instead of lumping them into one vague "speed."",{"type":14,"id":45,"html":208},"The jargon that shows up constantly in this space",{"type":7,"html":210},"These are this scene's own shorthand. Once they click, other articles get much easier to read.",{"type":20,"align":212,"head":213,"rows":214},[22,22],[188,189],[215,218,221,224],[216,217],"Circumventing restrictions","An umbrella phrase for the various ways people reach sites blocked by local network restrictions — a category, not one specific technique",[219,220],"An unmanaged proxy service","A traffic- or time-based subscription proxy that usually needs you to configure the client and route yourself",[222,223],"Accelerator","A tool marketed around making one particular app work better, common in gaming and video contexts; one-tap connection is the typical form",[225,226],"Exit IP","The IP address a site sees as "your location" once you're connected — not your device's real IP",{"type":7,"html":228},"An unmanaged proxy service and a one-tap VPN app get compared constantly, but the two are positioned differently and used differently. What actually separates the two covers that in full. "Accelerator" and "VPN" are also frequently the same underlying tool with a different name attached depending on the audience — marketed as an accelerator toward gaming and video, marketed as a VPN toward the broader idea of getting around restrictions, with no fundamental difference underneath.",{"type":7,"html":230},"The "free nodes" that circulate online mostly come from unmanaged-proxy capacity that got redistributed or resold without oversight — nobody is accountable for who is using them or what for, and neither stability nor safety is guaranteed. That is a different thing entirely from a proper subscription service, and the two should not be treated as equivalent.",{"type":14,"id":73,"html":232},"The words that describe whether a connection is any good",{"type":7,"html":234},"These describe exactly where a connection "feels wrong." When someone complains a connection is choppy, they usually mean one specific thing among these.",{"type":20,"align":236,"head":237,"rows":238},[22,22],[188,189],[239,242,245,248],[240,241],"Latency","How long a round trip takes; a smaller number means a faster reaction",[243,244],"Packet loss","Some of what you sent never arrived — not slower, genuinely missing",[246,247],"Jitter","Latency itself refusing to hold steady, fast one moment and slow the next",[249,250],"Reconnection","The automatic process of getting back online after a dropped connection, with a short gap with no connectivity in between",{"type":7,"html":252},"Exactly how to tell these four apart, and what each one feels like, is covered in more depth in \u003Ca href=\"\u002Fen\u002Fblog\u002Fwhat-is-latency\u002F\">Latency, packet loss, jitter: the three terms explained\u003C\u002Fa>. If your connection keeps dropping for no obvious reason, why a VPN keeps disconnecting has a dedicated troubleshooting path.",{"type":14,"id":96,"html":254},"The privacy and security terms",{"type":7,"html":256},"These decide whether a tool is worth trusting, and they're worth more of your attention than speed when you're choosing one.",{"type":20,"align":258,"head":259,"rows":260},[22,22],[188,189],[261,264,267,270],[262,263],"No-logs policy","A provider's commitment not to record what you specifically accessed or when",[265,266],"Encryption","Scrambling data in transit so nobody but the two ends can read it",[268,269],"Kill switch","Automatically cutting a device's connectivity the moment the tunnel drops, so traffic doesn't leak out unprotected; whether a tool has this is worth asking about",[271,272],"DNS leak","A lookup that should have gone through the encrypted route instead went out over the local network, exposing what you were actually trying to reach",{"type":7,"html":274},"Individually none of these is complicated, but together they're the basic framework for judging whether a service is trustworthy. A service that can't say what its no-logs commitment actually covers, dodges questions about encryption, or can't even confirm whether it has a kill switch, probably hasn't taken this part seriously.",{"type":119},{"type":7,"html":277},"Exactly what to check about a no-logs policy, and what encryption actually protects, are covered separately in what a no-logs policy actually means and VPN encryption basics. If you suspect a DNS leak, what a DNS leak is and how to check for one has the concrete steps.",{"type":14,"id":123,"html":279},"The words you'll hit right before buying",{"type":7,"html":281},"Before picking a subscription, these terms decide exactly what you're paying for.",{"type":20,"align":283,"head":284,"rows":285},[22,22],[188,189],[286,289,292,295,298],[287,288],"Subscription","Paying monthly or yearly for continued use, rather than a one-time purchase",[290,291],"VIP \u002F membership tier","A higher tier than the basic plan, usually mapped to higher speed or more usable devices",[293,294],"Free trial","Free access for a period right after signing up — usually the cheapest way to judge whether a tool suits you",[296,297],"Money-back guarantee","The ability to request a refund within a promised window if you're not satisfied after trying it",[299,300],"Multi-device","Whether one subscription can be logged in on a phone, a computer and other devices at the same time",{"type":7,"html":302},"What these terms have in common is that they let you work out exactly what a subscription includes before you pay, instead of finding out a month in that the device limit is too low or the refund window is stricter than you assumed.",{"type":7,"html":304},"What \u003Ca href=\"\u002Fen\u002Ffeatures\u002F\">FastOrange\u003C\u002Fa> does on these fronts: every registered account gets free trial time each day, one subscription covers multiple devices at once, and there's a 30-day money-back guarantee — if it's not a fit, you can request a refund inside that window instead of committing a full year's payment up front on a guess.",{"type":14,"id":151,"html":306},"In summary",{"type":7,"html":308},"Terms around circumventing restrictions look like a lot, but most of them sort into five buckets: basic networking, this scene's own jargon, connection quality, privacy and security, and buying-related terms. Once you can guess which bucket an unfamiliar term belongs to, looking up its exact meaning goes much faster. This glossary doesn't try to be exhaustive — it only covers the terms that actually show up in articles and support conversations most often; the more obscure industry jargon isn't something a regular user needs to remember.",{"type":7,"html":310},"If you'd rather just start using a tool without mastering every term first, that's fine too: \u003Ca href=\"\u002Fen\u002Forder\u002F\">FastOrange\u003C\u002Fa> connects in one tap and doesn't require understanding concepts like nodes before you can use it. Start using it, and come back to this page whenever an unfamiliar term actually matters.",[312,315,318,321,324],{"q":313,"a":314},"Are "circumventing restrictions" and "VPN" the same thing?","Close enough for everyday use. They describe the same category of practice; people just use different words for it depending on how technical they want to sound.",{"q":316,"a":317},"Is an unmanaged proxy service the same thing as a VPN app?","Not quite. An unmanaged proxy service usually needs you to configure the client and the route yourself; a one-tap VPN app removes that step. See what actually separates the two.",{"q":319,"a":320},"Does having more nodes automatically mean better service?","Not necessarily. Node count does not translate directly into a good experience — landing on one stable route does. The "latency," "packet loss" and "jitter" entries in this glossary are exactly what that judgment is based on.",{"q":322,"a":323},"How can I tell if a no-logs policy is real?","As a regular user, mostly by checking whether the provider's public commitment is specific and clearly scoped, rather than just a slogan.",{"q":325,"a":326},"Can I use a VPN without memorizing any of these terms first?","Yes. \u003Ca href=\"\u002Fen\u002Forder\u002F\">FastOrange\u003C\u002Fa> connects in one tap and does not require understanding any of this first. Come back and look a term up only when you actually need to make a judgment call.",1790199274182]