by: Helge, published: Mar 1, 2021, updated: Mar 27, 2021, in Networking Security This post lists the internet communication targets of the Microsoft Windows operating system, including its various services and UWP apps. This post is a part of my application network connection monitoring series, a group of articles that explain how to analyze the network traffic of any Windows or macOS app. The ser
以前、Pingの応答時のTTLからOSの種類を調べる方法について記述した事があったが、今回はこの応答時のTTL値を変更し、PingによるOSの判別をさせないように設定する方法についてを記述する。 1.Windowsの場合 Windows系OSの場合、レジストリに以下のキーを追加することでTTLの値を変更可能となる。 HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters キー名：DefaultTTL タイプ：REG_DWORD 値:1 ～ 255 レジストリエディタで開くのが面倒であれば、以下のようにコマンドで設定すると良いだろう。 reg add HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters /v DefaultTTL /t REG_DWO
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UEFI向け9P File Systemを実装した． これにより9Pサーバからネットワークブートができるようになった． さらにFUSEと組み合わせることで少ない労力で9Pサーバ経由で クラウドからネットワークブートができるようになった． ソースコードと発表資料と発表の録画は以下で公開している． https://github.com/yabits/9pfsPkg https://speakerdeck.com/retrage/network-boot-from-bell-labs https://youtu.be/3PX19nWrygQ ネットワークブート 通常OSを起動するときBIOSはローカルディスクにアクセスしてブートイメージをロードする． ネットワークブートではローカルディスクの代わりにネットワーク上のサーバからブートイメージをロードする． これを実現するためにBIOSはネットワーク
Prepare your network or web server for iCloud Private Relay iCloud Private Relay is an internet privacy service offered as a part of an iCloud+ subscription that allows users on iOS 15, iPadOS 15, and macOS Monterey and later to connect to and browse the web more privately and securely. Private Relay protects users’ web browsing in Safari, DNS resolution queries, and insecure http app traffic. Int
PXEサーバーというのはご存知だろうか。 ネットワーク上からBootしてLinuxをインストールしたり、Memtestを走らせたりするサーバーである。 今回はiPXEでchainloadingをやってみたい。 通常はtftpだけを使いNetworkBootを行う。 しかし、tftpはとても遅く少しのデータしか転送できない。 httpからBootできれば早くそしてより重いデータも転送することができる。 PXEbootはhttpをいきなりブート出来ない。 iPXEはhttpからのBootが可能である。 そこで、 下図のように LANからPXEでtftpからiPXE(undionly.kpxe)をロードさせる。 undionly.kpxeがWebサーバーにあるbootメニューを読み込む インターネット上にあるubuntuやCentOSのインストーラーを読み込む とやればhttpからbootするこ
I heard that dramatic article images heavy with meaning are a meme, so here you have a picture of a subway tunnel because VPNs are network tunnels. 1 Short Instructions I recently reorganized my self-hosted stuff to use Docker. While Docker not really fits my philosophy, the broad availability and low-maintenance of images for pretty much all software convinced me to switch and so far I’m happy, i
This post is a wiki post. Anybody can edit it to provide useful tips for whitelisting. Editing abuse may result in a ban from the forums! Whitelisting Tips List any tips you've discovered on how or what to whitelist in order to solve specific issues! Google (Maps, Youtube, etc) Google Maps and other Google services pihole allow clients4.google.com pihole allow clients2.google.com YouTube history p
Is it possible to auto block all applications incoming/outgoing internet connection except for example Firefox with default windows firewall? I would like to block everything, even including windows update and other software updates. I would like to allow only one web browser like firefox, chrome or opera. How can I set up a config like this in windows Firewall? I see for blocking application but
Firewalld provides a dynamically managed firewall with support for network/firewall zones that define the trust level of network connections or interfaces. It has support for IPv4, IPv6 firewall settings, ethernet bridges and IP sets. There is a separation of runtime and permanent configuration options. It also provides an interface for services or applications to add firewall rules directly. Bene
Devio: Remote drive access and acquisition
Back when I was writing the Focus on Forensics Linkfest post, I mentioned a handy little freeware tool. ImDisk Virtual Disk Drive – freeware developed by Olof Lagerkvist. It works on all Windows systems I currently use: XP/Vista/Win7 in both x32/x64 bits along with Windows Server. (Though UAC must be turned off in both Vista/Win7 or or setup the driver to auto-load on system startup. as explained
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The document discusses the importance of observability for load balancers like HAProxy. It defines observability as the ability to infer the internal state of a system from external outputs. The load balancer acts as an observation tower that sees metrics from multiple targets, allowing comparisons to detect issues. HAProxy provides logs and statistics that can be used for observability to detect
0 ? '-30px' : '30px'), opacity: menu === 'platform' ? '1' : '0', transition: transition ? 'left 500ms ease-out, opacity ' + (menu === 'platform' ? '100ms' : '100ms') + ' ease-out' : 'none' }" x-ref="platform" role="menu" :aria-label="'HAProxy One menu'" :inert="menu !== 'platform'" @keydown.tab.shift="if (menu === 'platform' && $event.target === $el.querySelector('a')) { $event.preventDefault(); c
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "DNS rebinding" – news · newspapers · books · scholar · JSTOR (February 2012) (Learn how and when to remove this message) DNS rebinding is a method of manipulating resolution of domain names that is commo
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