フレッツ光回線でscpが遅かった話 - Qiita
この記事は、Supershipグループ Advent Calendar 2021の7日目の記事になります。 先日、sshを使用したファイル転送が回線速度と比べて異常に遅いという現象に遭遇したので、その際に行った調査を再現しつつ原因や対策について書いてみたいと思います。 要約 OpenSSHはデフォルトでinteractiveなセッションに af21 、non-interactiveなセッションに cs1 をDSCP値としてIPヘッダに設定する フレッツ網はIPヘッダのDSCP値を帯域優先サービスで使用しており、契約に応じて指定された優先度以外が設定されたパケットの転送は保証されない そのため、OpenSSHをデフォルト設定のままフレッツ網で使うと通信ができなかったり、速度低下などの悪影響を受ける可能性がある OpenSSHがDSCP値を設定しないようにするためには、IPQoS noneを設
PuTTY: a free telnet/ssh client
PuTTY: a free SSH and Telnet client Home | FAQ | Feedback | Licence | Updates | Mirrors | Keys | Links | Team Download: Stable · Snapshot | Docs | Changes | Wishlist PuTTY is a free implementation of SSH and Telnet for Windows and Unix platforms, along with an xterm terminal emulator. It is written and maintained primarily by Simon Tatham. The latest version is 0.81. Download it here. LEGAL WARNIN
Funtoo Keychain Project - Funtoo
Keychain helps you to manage SSH and GPG keys in a convenient and secure manner. It acts as a frontend to ssh-agent and ssh-add, but allows you to easily have one long running ssh-agent process per system, rather than the norm of one ssh-agent per login session. Keychain helps you to manage SSH and GPG keys in a convenient and secure manner. It acts as a frontend to ssh-agent and ssh-add, but allo
socat
dest-unreach / socat socat - Multipurpose relay Abstract what: "netcat++" (extended design, new implementation) OS: AIX, BSD, Linux, Solaris e.a. (UNIX) lic: GPL2 inst: tar x...; ./configure; make; make install doc: README; socat.html, socat.1 ui: command line exa: socat TCP6-LISTEN:8080,reuseaddr,fork PROXY:proxy:www.domain.com:80 keyw: tcp, udp, ipv6, raw ip, unix-socket, pty, pipe, listen, sock
DEPRECATED Secure Shell App - Chrome Web Store
(DEPRECATED: USE THE EXTENSION) Terminal emulator and SSH and SFTP client. ********************************************************** This Chrome App version has been deprecated and is no longer receiving updates. All users (including on ChromeOS) should migrate to the extension version at their earliest possible convenience: https://chrome.google.com/webstore/detail/iodihamcpbpeioajjeobimgagajmli
Apache Guacamole™
Apache Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC, RDP, and SSH. We call it clientless because no plugins or client software are required. Thanks to HTML5, once Guacamole is installed on a server, all you need to access your desktops is a web browser. Download Apache Guacamole 1.5.5 Released on 2024-04-05 Access your computers from anywhere Because th
Forwarding the Docker Socket over SSH
Lately, I’ve been working on some testing tools for Docker Swarm Mode. One of the things that is desirable is to be able to run docker commands locally, and have them execute on a remote cluster. In my case, it lets me develop tests locally without having to cross-compile and then copy files. A little-known trick that OpenSSH can do since 6.7 is forward Unix domain sockets over SSH using the same
tinyssh
Introduction TinySSH is a minimalistic SSH server which implements only a subset of SSHv2 features. Twitter: @tinyssh Github: https://github.com/janmojzis/tinyssh Features easy auditable - TinySSH has less than 100000 words of code no dynamic memory allocation - TinySSH has all memory statically allocated (less than 1MB) simple configuration - TinySSH can’t be misconfigured reusing code - TinySSH
Rsync over SSH - (40MB/s over 1GB NICs)
Documentation.md The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs) This creates an archive that does the following: rsync (Everyone seems to like -z, but it is much slower for me) a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files. H: preserve
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GitHub - tavrez/openssh-sk-winhello: A helper for OpenSSH to interact with FIDO2 and U2F security keys through native Windows Hello API
SSH Security Best Practices using Certificates, 2FA and Bastions
GitHub - mviereck/x11docker: Run GUI applications and desktops in docker and podman containers. Focus on security.
GitHub - tg123/sshpiper: The missing reverse proxy for ssh scp
GitHub - sshuttle/sshuttle: Transparent proxy server that works as a poor man's VPN. Forwards over ssh. Doesn't require admin. Works with Linux and MacOS. Supports DNS tunneling.
GitHub - MisterTea/EternalTerminal: Re-Connectable secure remote shell
GitHub - gravitational/teleport: The easiest, and most secure way to access and protect all of your infrastructure.
RLogin(Win32用rlogin/telnet/sshターミナルソフト)
GitHub - scponly/scponly: The scponly pseudo-shell provides a file-transfer only shell for *Nix systems with optional support for using a chrooted environment.
GitHub - moul/sshportal: :tophat: simple, fun and transparent SSH (and telnet) bastion server
