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Content delivery network | way telcos building federated cdn offering interesting content provider willing deliver content aggregated audience federation.it likely near future telco cdn federations created.grow enrollment new telcos joining federation bringing network presence internet subscriber bases existing ones.improving cdn performance using edns option traditionally cdns used ip clients recursive dns resolver geolocate client.sound approach many situations leads poor client performance client uses nonlocal recursive dns resolver far away.instance cdn may route requests client india edge server singapore client uses public dns resolver singapore causing poor performance client. |
Content delivery network | indeed recent study showed many countries public dns resolvers popular use median distance clients recursive dns resolvers high thousand miles.august global consortium leading internet service providers led google announced official implementation ednsclientsubnet ietf internetdraft intended accurately localize dns resolution responses.initiative involves limited number leading dns service providers google public dns cdn service providers well.ednsclientsubnet edns option cdns utilize ip address requesting clients subnet resolving dns requests.approach called enduser mapping adopted cdns shown drastically reduce roundtrip latencies improve performance clients use public dns nonlocal resolvers. |
Content delivery network | however use edns also drawbacks decreases effectiveness caching resolutions recursive resolvers increases total dns resolution traffic raises privacy concern exposing clients subnet.virtual cdn vcdn virtualization technologies used deploy virtual cdns vcdns goal reduce content provider costs time increase elasticity decrease service delay.vcdns possible avoid traditional cdn limitations performance reliability availability since virtual caches deployed dynamically virtual machines containers physical servers distributed across provider geographical coverage.virtual cache placement based content type server enduser geographic location vcdns significant impact service delivery network congestion.image optimization delivery image cdns addy osmany google started referring software solutions could integrate naturally responsive web design paradigm particular reference picture element image cdns. |
Content delivery network | expression referred ability web architecture serve multiple versions image http depending properties browser requesting determined either browser serverside logic.purpose image cdns googles vision serve highquality images better images perceived highquality human eye preserving download speed thus contributing great user experience ux.arguably image cdn term originally misnomer neither cloudinary imgix examples quoted google guide addy osmany time cdn classical sense term.shortly afterwards though several companies offered solutions allowed developers serve different versions graphical assets according several strategies.many solutions built top traditional cdns akamai cloudfront fastly verizon digital media services cloudflare.time solutions already provided image multiserving service joined image cdn definition either offering cdn functionality natively imageengine integrating one existing cdns cloudinaryakamai imgixfastly.while providing universally agreedon definition image cdn may possible generally speaking image cdn supports following three componentsa content delivery network cdn fast serving images.image manipulation optimization either onthefly though url directives batch mode manual upload images fullyautomatic combination these.device detection also known device intelligence i.e. |
Credential Management | ability determine properties requesting browser andor device analysis useragent string http accept headers clienthints javascript.the following table summarizes current situation main software cdns space notable content delivery service providers free cdns traditional commercial cdns telco cdns commercial cdns using pp delivery multi cdn inhouse cdn netflix see also references readingcms software used governments enterprises issuing strong twofactor authentication fa employees citizens.cms integrates components pki provide one joinedup solution departments issue manage credentials wide selection devices including smart cards usb keys smartphones laptops desktop computers.credential management also proposed application programming interface api development world wide web consortium standardizing aspects password managers used web user agents web browsers applications create store use modify username password combinations logins addition management federated credentials single signon tokens user agents.api developed wcs web application security working group working draft status since april .recommendationtrack proposal expected become accepted standard may undergo significant changes occurs.credential management api already extended webauthn web authentication proposal reached candidate recommendation status april adds ability handle publickey authentication.it common modern web browsers able store automatically enter usernames passwords website logins though often used suboptimal heuristics guessing form fields data supposed filledstored resulting inconsistent sometimes faulty behavior. |
Credential Management | browsers also trouble filling login forms federated identities user connecting website uses account thirdparty web service like facebook google twitter authenticate provide identity information.credential management specification also aims streamline process changing passwords locally stored password client updated time modified server.google chrome included support credential management since version released may opera included support since version released april .mozilla firefox includes subset api support webauthn since version released may .api august working draft user agents supporting credential management api must implement credential store persistent storage credential objects also include credential chooser allow users interact objects allow deny use logins.credentials ideally name favicon associated perhaps along related information help distinguish website service used well ability differentiate credentials multiple accounts site.the api defines four main javascript methods expose credentialscontainer interface navigator.credentials.create navigator.credentials.store navigator.credentials.get navigator.credentials.preventsilentaccess. |
Credential Management | also specifies toplevel credential interface object descendant passwordcredential federatedcredential object types.webauthn also defines publickeycredential interface object.api available user agent connected secure https website.browsers still implement autofilling login information nonsecure sites must allow sites benefit automation api provides since could lead accidental exposure passwords credentials.addition api access allowed toplevel windows within iframe elements nested browsing contexts.the navigator.credentials.create method used constructing credential objects memory store triggers writing object credential store following successful login. |
Sandbox (computer security) | get requests potentially relevant credentials storage may presented user credential chooser.retrieval requests made user agents required prompt user authorization default though user interface allow flag set allows silent authorization without presenting prompt.website reset flag preventsilentaccess method recommended use logging out.see also openid connect references external links credential management level wc web application security working groupoften used execute untested untrusted programs code possibly unverified untrusted third parties suppliers users websites without risking harm host machine operating system.sandbox typically provides tightly controlled set resources guest programs run storage memory scratch space.network access ability inspect host system read input devices usually disallowed heavily restricted.in sense providing highly controlled environment sandboxes may seen specific example virtualization.sandboxing frequently used test unverified programs may contain virus malicious code without allowing software harm host device.implementations sandbox implemented executing software restricted operating system environment thus controlling resources e.g. |
Sandbox (computer security) | file descriptors memory file system space etc.process may use.examples sandbox implementations include followinglinux application sandboxing built seccomp cgroups linux namespaces.notably used systemd google chrome firefox firejail.android first mainstream operating system implement full application sandboxing built assigning application linux user id.apple app sandbox required apps distributed apples mac app store iosipados app store recommended signed apps.windows vista later editions include low mode process running known user account control uac allows writing specific directory registry keys.windows pro version provides feature known windows sandbox.google sandboxed api.virtual machines emulate complete host computer conventional operating system may boot run actual hardware.guest operating system runs sandboxed sense function natively host access host resources emulator.a jail networkaccess restrictions restricted file system namespace. |
Sandbox (computer security) | jails commonly used virtual hosting.rulebased execution gives users full control processes started spawned applications allowed inject code applications access net system assign access levels users programs according set determined rules.also control fileregistry security programs read write file systemregistry.environment viruses trojans fewer opportunities infecting computer.selinux apparmor security frameworks two implementations linux.security researchers rely heavily sandboxing technologies analyse malware behavior.creating environment mimics replicates targeted desktops researchers evaluate malware infects compromises target host. |
Sandbox (computer security) | numerous malware analysis services based sandboxing technology.google native client sandbox running compiled c c code browser efficiently securely independent users operating system.capability systems thought finegrained sandboxing mechanism programs given opaque tokens spawned ability specific things based tokens hold.capabilitybased implementations work various levels kernel userspace.example capabilitybased userlevel sandboxing involves html rendering web browser.secure computing mode seccomp sandbox built linux kernel.activated strict mode seccomp allows write read exit sigreturn system calls.html sandbox attribute use iframes.java virtual machines include sandbox restrict actions untrusted code java applet.the .net common language runtime provides code access security enforce restrictions untrusted code.software fault isolation sfi allows running untrusted native code sandboxing store read jump assembly instructions isolated segments memory.some use cases sandboxes include followingonline judge systems test programs programming contests.newgeneration pastebins allowing users execute pasted code snippets pastebins server.see also sandboxieseccompshade sandboxtor anonymity networkinterface segregation principle references external links security indepth linux software preventing mitigating security bugssandbox – chromium projectsfreebsd capsicum man page – lightweight os capability sandbox frameworkopenbsd pledge man page – way restrict system operationssandbox testing importancesandbox importance sandbox zero day flaw |
Google hacking | google dorking could also used osint.basics google hacking involves using advanced operators google search engine locate specific errors text within search results.popular examples finding specific versions vulnerable web applications.search query intitleadmbook intitlefversion filetypephp would locate web pages particular text contained within them.normal default installations applications include running version every page serve example powered xoops .. final.devices connected internet found. |
Google hacking | search string inurlviewerframemode find public web cameras.another useful search following intitleindex.of followed search keyword.give list files servers.example intitleindex.of mp give mp files available various types servers.you use symbols words search make search results precise.google search usually ignores punctuation isn’t part search operator.don’t put spaces symbol word search term.search sitenytimes.com work site nytimes.com won’t.history concept google hacking dates back johnny long began collect google search queries uncovered vulnerable systems andor sensitive information disclosures – labeling googledorks.the list google dorks grew large dictionary queries eventually organized original google hacking database ghdb .concepts explored google hacking extended search engines bing shodan. |
Security operations center | automated attack tools use custom search dictionaries find vulnerable systems sensitive information disclosures public systems indexed search engines.protection robots.txt well known file search engine optimization protection google dorking.involves use robots.txt disallow everything specific endpoints hackers still search robots.txt endpoints prevents google bots crawling sensitive endpoints admin panels.references external links google hacking database ghdb reborn nov – exploitdb.com folks picked effort maintaining adding original ghdb johnnyihackstuff.com created johnny long.google hacking .pdf document boriskoch.de printable .pdfgoogle help cheat sheet google printablegoogle hacking penetration using google security testing tool introduction johnny longcomprises three building blocks managing enhancing organizations security posture people processes technology.thereby governance compliance provide framework tying together building blocks.soc within building facility central location staff supervises site using data processing technology.typically soc equipped access monitoring controlling lighting alarms vehicle barriers.information security operations center isoc dedicated site enterprise information systems web sites applications databases data centers servers networks desktops endpoints monitored assessed defended. |
Security operations center | united states government transportation security administration united states implemented security operations centers airports federalized security.primary function tsa security operations centers act communication hub security personnel law enforcement airport personnel various agencies involved daily operations airports.socs manned hours day soc watch officers.security operations center watch officers trained aspects airport aviation security often required work abnormal shifts.soc watch officers also ensure tsa personnel follow proper protocol dealing airport security operations. |