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ãŠã™ã™ã‚.ssh/configè¨å®š - 2023-04-03 - ククãƒã‚°
ã¯ã˜ã‚ã« ã¤ã„先日ã€GitHubã®RSA SSHホストéµãŒçªå¦‚å·®ã—替ãˆã‚‰ã‚Œã‚‹ã¨ã„ã†ä¸€ä»¶ãŒã‚ã‚Šã¾ã—ãŸã€‚ We updated our RSA SSH host key 詳細ã«é–¢ã—ã¦ã¯è˜è€…ã«ã‚ˆã‚‹è§£èª¬ã«å§”ãã¾ã™ãŒã€ã¡ã‚‡ã†ã©ã‚¿ã‚¤ãƒ リーãªè©±é¡Œã ã£ãŸã®ã§ã€SSHをより安全ã«åˆ©ç”¨ã™ã‚‹ã¨ã„ã†è¦³ç‚¹ã§ãŠã™ã™ã‚è¨å®šã«ã¤ã„ã¦ã„ãã¤ã‹ç´¹ä»‹ã—ã¾ã™ã€‚ ãªãŠã€ã‚¯ãƒªã‚¢ã‚³ãƒ¼ãƒ‰ã§ã¯SSH以外ã«ã‚‚ãŠã™ã™ã‚zshè¨å®šã‚„ãŠã™ã™ã‚Emacsè¨å®šã¨ã„ã†è¨˜äº‹ã‚‚公開ã—ã¦ã„ã‚‹ã®ã§å‚考ã«ã—ã¦ã¿ã¦ãã ã•ã„。 2023å¹´5月11日更新：StrictHostKeyCheckingã‚’yesã«ã™ã‚‹å ´åˆã®å®‰å…¨ãªknown_hostsã®æ›´æ–°æ–¹æ³•ã«ã¤ã„ã¦è¿½è¨˜ã—ã¾ã—ãŸã€‚ ãŠã™ã™ã‚è¨å®šã«ã¤ã„㦠クリアコードã§ã¯ã€.ssh/configã®ãŠã™ã™ã‚è¨å®šã‚’ https://gitlab.com/clear-code/ssh.d ã«ã¦å…¬é–‹ã—ã¦ã„ã¾ã™ã€‚ ã“ã‚Œã¯ã€ç¤¾å†…ã§.ss
A Visual Guide to SSH Tunnels: Local and Remote Port Forwarding
Bridge vs. Switch: What I Learned From a Data Center TourNetworking Lab: Ethernet Broadcast DomainsNetworking Lab: L3 to L2 Segments MappingNetworking Lab: Simple VLANDon't miss new posts in the series! Subscribe to the blog updates and get deep technical write-ups on Cloud Native topics direct into your inbox. TL;DR SSH Port Forwarding as a printable cheat sheet. SSH is yet another example of an
If you’re not using SSH certificates you’re doing SSH wrong
If you’re not using SSH certificates you’re doing SSH wrongUpdated on: May 20, 2024 SSH is ubiquitous. It's the de-facto solution for remote administration of *nix systems. But SSH has some pretty gnarly issues when it comes to usability, operability, and security. You're probably familiar with these issues: SSH user experience is terrible. SSH user on-boarding is slow and manual. Connecting to ne
SSH and Git, meet 1Password 🥰 | 1Password
1Password now includes full support for SSH keys, providing the easiest and most secure way for developers to manage SSH keys and use Git in their daily workflow. The magic of 1Password has always been making the secure thing to do the easy thing to do. Today I’m thrilled to announce that we’re bringing this magic to development teams everywhere with the all-new 1Password SSH Agent. 🦄 In today’s
Visual guide to SSH tunnels
A visual guide to SSH tunnels This page explains use cases and examples of SSH tunnels while visually presenting the traffic flows. For example, here's a reverse tunnel that allows only users from IP address 1.2.3.4 access to port 80 on the SSH client through an SSH server. SSH tunnels are encrypted TCP connections between SSH clients and servers that allows traffic entering one side of the tunnel
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SELinux ã‚’è¸ã¿å°ã‚µãƒ¼ãƒã«ä½¿ã£ã¦ã¿ãŸè©±
ã“れ㯠ビットãƒãƒ³ã‚¯æ ªå¼ä¼šç¤¾ Advent Calendar 2020 ã® 17 日目ã®è¨˜äº‹ã§ã™ã€‚ ã¯ã˜ã‚㫠皆ã•ã‚“ setenforce 1ã—ã¦ã¾ã™ã‹ï¼Ÿ AWS エンジニア㮠koarakko ã§ã™ã€‚ 普段㯠DevOps ã‚„ 統制周りã®æ¥å‹™ã‚’担当ã—ã¦ã„ã¾ã™ã€‚ 今回ã¯è¸ã¿å°ã‚µãƒ¼ãƒã§ã® SELinux 活用事例を交ãˆãªãŒã‚‰å®Ÿéš›ã«ãƒãƒªã‚·ãƒ¼èª¿æŸ»ã‹ã‚‰å®Ÿè£…ã¾ã§ã®æ–¹æ³•ã‚’紹介ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ SELinux を本番利用ã—ã¦ã„る環境ã¯å°‘ãªãã€è²´é‡ãªçµŒé¨“ãŒã§ããŸã¨è‡ªè² ã—ã¦ã„ã¾ã™ã€‚ ã“ã®è¨˜äº‹ã‚’èªã‚€ã“ã¨ã§ SELinux ã®æœ¬ç•ªåˆ©ç”¨ã®ä¸€åŠ©ã«ãªã‚Œã°å¹¸ã„ã§ã™ã€‚ 当社ã®è¸ã¿å°ã®æ´»ç”¨èƒŒæ™¯ è¸ã¿å°ã‚µãƒ¼ãƒã¯æœ¬ç•ªã‚¢ãƒ—リサーãƒã«ãƒã‚°ã‚¤ãƒ³ã™ã‚‹å ´åˆã«çµŒç”±ã‚µãƒ¼ãƒã¨ã—ã¦åˆ©ç”¨ã—ã¦ã„ã¾ã™ã€‚ OS 㯠RHEL 8 ã§2å°æ§‹æˆã§ã™ã€‚ 当社ã§ã¯è¸ã¿å°ã‚µãƒ¼ãƒã‚’２年程度使ã£ã¦ã„ã¾ã™ãŒã€ã“ã®é–“ã«è¸ã¿å°ã‚µãƒ¼ãƒã®ç½®ãæ›ãˆã‚‚ã—ã¦ã„ã¾ã™ã€‚ 以å‰ã¯ am
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「外出先ã§ã‚‚リモートサーãƒãƒ¼ã¸ã®SSH接続やã€æ‰‹è»½ãªLinux環境を利用ã—ãŸã„ï¼ã€ã¨ã„ã†é¡˜ã„ã‚’ã‹ãªãˆã¦ãれるã®ãŒã€ç„¡æ–™ã®Androidå‘ã‘アプリケーション「Termuxã€ã§ã™ã€‚Termuxã¯ãƒ‘ッケージマãƒãƒ¼ã‚¸ãƒ£ãƒ¼çµŒç”±ã§SSHクライアントやウェブサーãƒãƒ¼ã€ã‚¦ã‚£ãƒ³ãƒ‰ã‚¦ã‚·ã‚¹ãƒ†ãƒ ãªã©ã‚’インストールã§ãã‚‹ã€è»½é‡ç‰ˆLinuxã®ã‚ˆã†ãªä½¿ã„æ–¹ãŒå¯èƒ½ãªé«˜æ©Ÿèƒ½ã‚¿ãƒ¼ãƒŸãƒŠãƒ«ã§ã™ã€‚ Termux https://termux.com/ Termux - Google Play ã®ã‚¢ãƒ—リ https://play.google.com/store/apps/details?id=com.termux ã¾ãšã¯Google Play Storeã«ã‚¢ã‚¯ã‚»ã‚¹ã—ã¦ã€Termuxをインストールã—ã¾ã™ã€‚ インストールãŒå®Œäº†ã—ãŸã‚‰ã€Œé–‹ãã€ã‚’タップ。 TermuxãŒèµ·å‹•ã—ã¾ã—ãŸã€‚ ユーザーåã€ãƒ›ãƒ¼ãƒ ディレクトリã€ã‚«ãƒ¼ãƒãƒ«æƒ…å ±ã¯ä»¥ä¸‹ã€‚
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リモートã§ã‚³ãƒ³ãƒ”ューターã«ã‚¢ã‚¯ã‚»ã‚¹ã™ã‚‹ãŸã‚ã®ãƒ—ãƒãƒˆã‚³ãƒ«ã§ã‚ã‚‹SSHã¯ã€ã‚³ãƒ³ãƒ”ューターã®èªè¨¼ã‚’è¡Œã†ãŸã‚ã«å…¬é–‹éµæš—å·ã‚’利用ã—ã¦ã„ã¾ã™ã€‚公開éµæš—å·ã®æ–¹å¼ã«ã¯ã€ŒRSAã€ã€ŒDSAã€ã€ŒECDSAã€ã€ŒEdDSAã€ãŒã‚ã‚Šã€ãã‚Œãžã‚Œã®ä»•çµ„ã¿ã¨ã€ŒSSHã«é©ã—ãŸæ–¹å¼ã€ã«ã¤ã„ã¦ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ä¼æ¥ã€ŒGravitationalã€ã®Virag Modyæ°ãŒè§£èª¬ã—ã¦ã„ã¾ã™ã€‚ Comparing SSH Encryption Algorithms - RSA, DSA, ECDSA, or EdDSA? https://gravitational.com/blog/comparing-ssh-keys/ 公開éµæš—å·ã¯ã€æš—å·åŒ–ã¨å¾©å·ã«åˆ¥ã€…ã®éµã‚’用ã„ã‚‹æš—å·æ–¹å¼ã®ã“ã¨ã€‚例ãˆã°ã€ãƒœãƒ–ã¨ã‚¢ãƒªã‚¹ãŒã‚„ã‚Šå–ã‚Šã‚’è¡Œã†æ™‚ã€ã‚¢ãƒªã‚¹ã¯ç§˜å¯†éµã¨å…¬é–‹éµã‚’作æˆã—ã€å…¬é–‹éµã‚’ボブã«æ¸¡ã—ã¦ãŠãã¾ã™ã€‚ボブã¯ã‚¢ãƒªã‚¹ã®å…¬é–‹éµã§ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’æš—å·åŒ–ã—ã¦ã‚¢ãƒªã‚¹ã«é€ä¿¡ã€‚æš—å·
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ssh-rsa，éžæŽ¨å¥¨ã®ãŠçŸ¥ã‚‰ã›
2020-05-28T14:11+9:00 追記 ã“れ㯠SHA-1 を用ã„㟠RSA éµã«ã¤ã„ã¦ã®è©±ã§ï¼ŒOpenSSH 7.2 以é™ã§ç”Ÿæˆãƒ»åˆ©ç”¨ã•ã‚Œã‚‹ RSA éµã¯ã¾ã 利用å¯èƒ½ã§ã™ 2020-05-28T19:27+9:00 追記 æ—¢ã«ç”Ÿæˆã•ã‚Œã¦ã„ã‚‹ RSA éµã§ã‚‚ホスト・クライアントã®ä¸¡æ–¹ãŒ OpenSSH 7.2 以é™ãƒ›ã‚¹ãƒˆãƒ»ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã®ä¸¡æ–¹ãŒ OpenSSH 7.2 以é™ï¼ŒãŸã ã—サーãƒãƒ¼å´ã¯ OpenSSH 7.4 以外ã§ã‚れ㰠SHA-2 ã§ç½²åã™ã‚‹ã®ã§å¤§ä¸ˆå¤«ãªã‚ˆã†ã§ã™ã€‚（OpenSSH 7.4 ã¯ãƒã‚°ãŒã‚るよã†ã§ã™ï¼‰ ssh-rsaã¨ã„ã†åå‰ã¯"公開éµã®å½¢å¼"ã¨"公開éµã‚’使ã£ãŸç½²åæ–¹å¼"ã®äºŒã¤ã§ä½¿ã‚ã‚Œã¦ã„ã¦ã€å»ƒæ¢å¯¾è±¡ã¨ãªã£ã¦ã„ã‚‹ã®ã¯ç½²åæ–¹å¼ã®æ–¹ã ã‘ã§ã™ã€‚ãªã®ã§OpenSSH 7.2以é™ã‚’入れれã°ã€éµè‡ªä½“ã¯å¤ã„OpenSSHã§ç”Ÿæˆã—ãŸç‰©ãŒãã®ã¾ã¾ä½¿ãˆã¾ã™ã€‚ — ã„ã‚も㨠ã“ã†ã„
SSH Tips & Tricks
Experience SSH certificates for yourself in <5minâš¡! Here are some of our best tips & tricks for using SSH more effectively. This post will cover how to: Add a second factor to your SSH login Use agent forwarding safely Exit from stuck SSH sessions Keep a persistent terminal open Share a remote terminal session with a friend (without Zoom!) Add a second factor to your SSH Here's five different ways
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