112articlestagged with "SSH"
CrowdSec: Complete Guide to Collaborative Intrusion Prevention
CrowdSec complete guide: install, configure bouncers, custom scenarios, community blocklists, multi-server setup, and Nginx+SSH production protection on Linux.
CrowdSec: Vollständige Anleitung zur kollaborativen Angriffserkennung
CrowdSec vollständige Anleitung: Installation, Bouncer-Konfiguration, eigene Szenarien, Community-Blocklisten und Nginx+SSH-Schutz unter Linux.
CrowdSec: Guía Completa de Prevención de Intrusiones Colaborativa
Guía completa de CrowdSec: instala, configura bouncers, escenarios personalizados, listas comunitarias y protección Nginx+SSH en servidores Linux.
CrowdSec : Guide Complet de Prévention des Intrusions Collaborative
Guide complet CrowdSec : installation, bouncers, scénarios personnalisés, listes communautaires et protection Nginx+SSH sur vos serveurs Linux.
CrowdSec: Guia Completo de Prevenção de Intrusões Colaborativa
Guia completo do CrowdSec: instale, configure bouncers, cenários personalizados, listas comunitárias e proteção Nginx+SSH em servidores Linux.
Mosh: The Mobile Shell — SSH That Stays Connected
Mosh is a replacement for SSH that stays connected through network changes, Wi-Fi switching, and high latency. It uses UDP and shows local echo instantly.
Mosh: Die Mobile Shell — SSH das Verbunden Bleibt
Mosh hält Remote-Sessions durch Netzwerkwechsel aufrecht.
Mosh: El Shell Móvil — SSH que No se Desconecta
Mosh reemplaza SSH para sesiones que sobreviven cambios de red, sleep y alta latencia.
Mosh : Le Shell Mobile — SSH qui Reste Connecté
Mosh maintient les sessions à travers les changements réseau.
Mosh: O Shell Móvel — SSH que Não Desconecta
Mosh mantém sessões remotas ativas através de mudanças de rede.
Sshuttle: VPN Over SSH Without Root on the Server
Sshuttle creates a VPN-like tunnel over SSH without server configuration. Route all traffic or specific subnets through any SSH server. No root needed on remote.
Sshuttle: VPN über SSH Ohne Root auf dem Server
Sshuttle erstellt VPN-Tunnel über SSH ohne Serverkonfiguration. Routen Sie Verkehr ohne Root auf dem Remote-Server.
Sshuttle: VPN a Través de SSH Sin Root en el Servidor
Sshuttle crea un túnel VPN sobre SSH sin configuración del servidor. Enrute todo el tráfico o subredes específicas. Sin root en el servidor remoto.
Sshuttle : VPN via SSH Sans Root sur le Serveur
Sshuttle crée un tunnel VPN via SSH sans configuration serveur. Routez tout le trafic sans root sur le serveur distant.
Sshuttle: VPN Através de SSH Sem Root no Servidor
Sshuttle cria túnel VPN sobre SSH sem configuração do servidor. Roteie tráfico ou sub-redes específicas sem root no servidor.
Teleport: Secure SSH and Infrastructure Access Management Guide
Complete guide to Gravitational Teleport for secure SSH, Kubernetes, database, and app access. Certificate auth, SSO, RBAC, audit logs, and Access Requests.
Teleport: Vollständiger Leitfaden für sicheren SSH- und Infrastrukturzugriff
Vollständiger Leitfaden zu Gravitational Teleport für sicheres SSH, Kubernetes, Datenbanken und Apps. Zertifikate, SSO, RBAC, Audit-Logs und Access Requests.
Teleport: Guía Completa de Acceso Seguro SSH e Infraestructura
Guía completa de Gravitational Teleport para SSH seguro, Kubernetes, bases de datos y apps. Certificados, SSO, RBAC, auditoría y Access Requests explicados.
Teleport: Guide Complet d'Accès SSH Sécurisé et Gestion d'Infrastructure
Guide complet de Gravitational Teleport pour SSH sécurisé, Kubernetes, bases de données et apps. Certificats, SSO, RBAC, journaux d'audit et Access Requests.
Teleport: Guia Completo de Acesso SSH Seguro e Gestão de Infraestrutura
Guia completo do Gravitational Teleport para SSH seguro, Kubernetes, bancos de dados e apps. Certificados, SSO, RBAC, logs de auditoria e Access Requests.
Fail2Ban: Complete Guide to SSH and Service Brute-Force Protection
Fail2Ban complete guide: install, configure SSH jails, progressive banning, custom filters, Nginx/Apache/mail protection, and Cloudflare integration on Linux.
Fail2Ban: Vollständiger Leitfaden zum Schutz von SSH und Diensten unter Linux
Fail2Ban vollständiger Leitfaden: Installation, SSH-Jails, progressives Sperren, benutzerdefinierte Filter, Nginx/Apache/Mail-Schutz und Cloudflare-Integration.
Fail2Ban: Guía Completa para Proteger SSH y Servicios en Linux
Fail2Ban guía completa: instalación, jails SSH, baneo progresivo, filtros personalizados, protección Nginx/Apache/correo e integración con Cloudflare en Linux.
Fail2Ban: Guide Complet pour Protéger SSH et les Services Linux
Fail2Ban guide complet : installation, jails SSH, bannissement progressif, filtres personnalisés, protection Nginx/Apache/mail et intégration Cloudflare Linux.
Fail2Ban: Guia Completo para Proteger SSH e Serviços no Linux
Fail2Ban guia completo: instalação, jails SSH, banimento progressivo, filtros personalizados, proteção Nginx/Apache/e-mail e integração com Cloudflare no Linux.
rsync: Complete Guide to Remote Backups and File Sync on Linux
rsync guide: delta transfer algorithm, essential flags, SSH remote backups, --link-dest incremental snapshots, cron automation, and daemon mode on Linux.
rsync: Vollständige Anleitung für Remote-Backups und Dateisynchronisierung unter Linux
rsync-Leitfaden: Delta-Algorithmus, essentielle Flags, SSH-Remote-Backups, --link-dest-Snapshots, cron-Automatisierung und Daemon-Modus unter Linux.
rsync: Guía Completa de Copias de Seguridad Remotas y Sincronización en Linux
Guía rsync: algoritmo delta, flags esenciales, copias remotas por SSH, snapshots incrementales con --link-dest, automatización con cron y modo daemon en Linux.
rsync : Guide Complet des Sauvegardes Distantes et Synchronisation sous Linux
Guide rsync : algorithme delta, flags essentiels, sauvegardes SSH distantes, snapshots --link-dest, automatisation cron et mode daemon sous Linux.
rsync: Guia Completo de Backups Remotos e Sincronização de Arquivos no Linux
Guia rsync: algoritmo delta, flags essenciais, backups remotos por SSH, snapshots com --link-dest, automação com cron e modo daemon no Linux.
SSH Key Management Best Practices Guide
SSH key management guide for sysadmins: generate Ed25519 keys, use ssh-agent, configure ~/.ssh/config, rotate and revoke keys, and use SSH certificates.
SSH-Schlüsselverwaltung: Leitfaden für Best Practices
SSH-Schlüsselverwaltung für Sysadmins: Ed25519-Schlüssel generieren, ssh-agent nutzen, ~/.ssh/config konfigurieren, Schlüssel rotieren und SSH-Zertifikate.
Guía de Gestión de Claves SSH: Mejores Prácticas
Guía de gestión de claves SSH para sysadmins: genera claves Ed25519, usa ssh-agent, configura ~/.ssh/config, rota y revoca claves y usa certificados SSH.
Guide de Gestion des Clés SSH: Meilleures Pratiques
Guide de gestion des clés SSH pour sysadmins: générez des clés Ed25519, utilisez ssh-agent, configurez ~/.ssh/config et utilisez des certificats SSH.
Guia de Gerenciamento de Chaves SSH: Melhores Práticas
Guia de gestão de chaves SSH para sysadmins: gere chaves Ed25519, use ssh-agent, configure ~/.ssh/config, rode e revogue chaves e use certificados SSH.
Tmux Session Management: Complete Remote Server Guide
Master tmux session management for remote servers. Learn persistent sessions, pane layouts, custom config, plugins, scripting, and practical DevOps workflows.
tmux-Sitzungsverwaltung: Vollständiger Leitfaden für Remote-Server
Tmux-Sitzungsverwaltung für Remote-Server meistern. Persistente Sitzungen, Panels, Konfiguration, Plugins und praktische DevOps-Workflows erklärt.
Gestión de Sesiones tmux: Guía Completa para Servidores Remotos
Domina la gestión de sesiones tmux para servidores remotos. Aprende sesiones persistentes, paneles, configuración, plugins y flujos de trabajo prácticos.
Gestion des Sessions tmux : Guide Complet pour Serveurs Distants
Maîtrisez la gestion des sessions tmux pour serveurs distants. Sessions persistantes, volets, configuration, plugins et workflows DevOps pratiques expliqués.
Gerenciamento de Sessões tmux: Guia Completo para Servidores Remotos
Domine o gerenciamento de sessões tmux para servidores remotos. Aprenda sessões persistentes, painéis, configuração, plugins e fluxos de trabalho práticos.
Code-Server: Run VS Code in Your Browser — Self-Hosted Remote Development
Run VS Code in your browser with code-server. Self-hosted remote development with Docker, extensions, Git integration, and access from any device.
Endlessh: SSH Tarpit — Trap and Slow Down Brute-Force Attackers
Deploy Endlessh to trap SSH brute-force attackers in an endless SSH banner, wasting attacker resources while protecting your real SSH server via Docker.
Endlessh: SSH-Tarpit — Falle für Brute-Force-Angreifer
Deployen Sie Endlessh um SSH-Brute-Force-Angreifer in einem endlosen Banner zu fangen, Ressourcen zu verschwenden und Ihren echten SSH-Server zu schützen.
Endlessh: Tarpit SSH — Atrapa Atacantes de Fuerza Bruta
Despliega Endlessh para atrapar atacantes de fuerza bruta SSH en un banner infinito, agotando sus recursos mientras proteges tu servidor SSH real con Docker.
Endlessh : Tarpit SSH — Piège pour Attaquants
Déployez Endlessh pour piéger les attaquants SSH par force brute dans un banner infini, épuisant leurs ressources tout en protégeant votre vrai serveur SSH.
Endlessh: Tarpit SSH — Armadilha para Atacantes
Implante Endlessh para prender atacantes SSH de força bruta em um banner infinito, desperdiçando recursos enquanto protege seu servidor SSH real via Docker.
Ansible for Beginners: Automate Server Configuration Without an Agent
Get started with Ansible to automate server configuration across your infrastructure. Learn playbooks, inventory, roles, and examples for Ubuntu and Windows.
Ansible fuer Einsteiger: Serverkonfiguration ohne Agent automatisieren
Starten Sie mit Ansible, um Serverkonfiguration zu automatisieren. Lernen Sie Playbooks, Inventarverwaltung, Rollen und Beispiele fuer Ubuntu und Windows.
Ansible para Principiantes: Automatiza la Configuracion de Servidores sin Agente
Comienza con Ansible para automatizar servidores en tu infraestructura. Aprende playbooks, gestion de inventario, roles y ejemplos para Ubuntu y Windows.
Ansible pour Debutants : Automatiser la Configuration des Serveurs sans Agent
Demarrez avec Ansible pour automatiser les serveurs dans votre infrastructure. Apprenez playbooks, inventaire, roles et exemples pour Ubuntu et Windows.
Ansible para Iniciantes: Automatize a Configuracao de Servidores sem Agente
Comece com Ansible para automatizar servidores em sua infraestrutura. Aprenda playbooks, gerenciamento de inventario, roles e exemplos para Ubuntu e Windows.
SSH Hardening: 12 Steps to Secure Your Linux Server
Harden SSH on your Linux server with these 12 security best practices: key-based auth, fail2ban, port changes, 2FA, and more.
SSH-Haertung: 12 Schritte zur Absicherung Ihres Linux-Servers
Haerten Sie SSH auf Ihrem Linux-Server mit diesen 12 Sicherheits-Best-Practices: Schluesselauthentifizierung, fail2ban, Portwechsel, 2FA und mehr.
Endurecimiento SSH: 12 Pasos para Asegurar tu Servidor Linux
Endurece SSH en tu servidor Linux con estas 12 mejores prácticas de seguridad: autenticación por claves, fail2ban, cambio de puertos, 2FA y más.
Renforcement SSH : 12 Etapes pour Securiser Votre Serveur Linux
Renforcez SSH sur votre serveur Linux avec ces 12 meilleures pratiques de securite : authentification par cle, fail2ban, changement de port, 2FA et plus.
Hardening SSH: 12 Passos para Proteger Seu Servidor Linux
Proteja o SSH no seu servidor Linux com estas 12 melhores práticas de segurança: autenticação por chave, fail2ban, mudança de porta, 2FA e mais.
Fail2Ban: Protect Your Linux Server from Brute-Force Attacks
Configure Fail2Ban on Ubuntu to automatically ban malicious IPs. Covers SSH protection, custom jails, email notifications, and UFW and Nginx integration.
Fail2Ban: Schützen Sie Ihren Linux-Server vor Brute-Force-Angriffen
Fail2Ban auf Ubuntu konfigurieren: bösartige IPs automatisch sperren. SSH-Schutz, eigene Jails, E-Mail-Alerts und UFW/Nginx-Integration einrichten.
Fail2Ban: Protege Tu Servidor Linux de Ataques de Fuerza Bruta
Configura Fail2Ban en Ubuntu para bloquear IPs maliciosas. Cubre SSH, jails personalizados, notificaciones por correo e integración con UFW y Nginx.
Fail2Ban : Protégez Votre Serveur Linux Contre les Attaques par Force Brute
Configurez Fail2Ban sur Ubuntu pour bloquer les IPs malveillantes. Couvre SSH, les jails personnalisés, les alertes e-mail et l'intégration UFW et Nginx.
Fail2Ban: Proteja Seu Servidor Linux de Ataques de Força Bruta
Configure o Fail2Ban no Ubuntu para bloquear IPs maliciosos. Abrange SSH, jails personalizados, notificações por e-mail e integração com UFW e Nginx.
Rsync Backup Strategies for Linux Servers
rsync backup strategies for Linux: incremental backups, SSH remote sync, snapshot hard links, automated cron scheduling, and restoration workflows.
Rsync-Backup-Strategien fuer Linux-Server
Backup-Strategien mit rsync unter Linux: inkrementelle Backups, SSH-Remote-Synchronisierung, Snapshot-Hardlinks und automatisierte cron-Planung.
Estrategias de Respaldo con Rsync para Servidores Linux
Estrategias de backup con rsync en Linux: respaldos incrementales, sincronización remota SSH, snapshots con hard links y automatización con cron.
Strategies de sauvegarde avec Rsync pour serveurs Linux
Stratégies de sauvegarde rsync sous Linux : sauvegardes incrémentielles, sync SSH distante, snapshots avec liens physiques et planification automatisée.
Estrategias de Backup com Rsync para Servidores Linux
Estratégias de backup com rsync no Linux: backups incrementais, sincronização remota SSH, snapshots com hard links e agendamento automatizado.
Tmux: The Terminal Multiplexer Every Sysadmin Needs
Master tmux for persistent terminal sessions and split panes. Learn essential shortcuts, custom configuration, session management, and workflows.
Tmux: Der Terminal-Multiplexer, den Jeder Sysadmin Braucht
Tmux für persistente Terminal-Sitzungen und geteilte Bereiche meistern. Shortcuts, benutzerdefinierte Konfiguration und Sitzungsverwaltung kennenlernen.
Tmux: El Multiplexor de Terminal que Todo Sysadmin Necesita
Domina tmux para sesiones de terminal persistentes y paneles divididos. Atajos esenciales, configuración personalizada, gestión de sesiones.
Tmux : Le Multiplexeur de Terminal Indispensable pour Tout Sysadmin
Maîtrisez tmux pour des sessions de terminal persistantes et des panneaux divisés. Apprenez les raccourcis, la configuration et la gestion des sessions.
Tmux: O Multiplexador de Terminal que Todo Sysadmin Precisa
Domine o tmux para sessões de terminal persistentes e painéis divididos. Aprenda atalhos essenciais, configuração personalizada e gerenciamento de sessões.
SSH Tunneling and Port Forwarding on Linux
SSH tunneling on Linux lets you forward ports, access remote services securely, and create SOCKS proxies. Master local, remote, and dynamic forwarding.
SSH-Tunneling und Port-Forwarding unter Linux
SSH-Tunneling unter Linux ermöglicht Port-Weiterleitung, sicheren Zugriff auf Remote-Dienste und SOCKS-Proxys. Lokale, Remote- und dynamische Weiterleitung im Detail.
SSH Tunneling y Port Forwarding en Linux
El tunneling SSH en Linux permite reenviar puertos, acceder a servicios remotos de forma segura y crear proxies SOCKS. Domina el reenvío local, remoto y dinámico.
Tunneling SSH et Redirection de Ports sur Linux
Le tunneling SSH sur Linux permet de rediriger des ports, accéder à des services distants en toute sécurité et créer des proxys SOCKS. Maîtrisez les redirections locale, distante et dynamique.
SSH Tunneling e Port Forwarding no Linux
SSH tunneling no Linux permite encaminhar portas, acessar serviços remotos com segurança e criar proxies SOCKS. Domine o encaminhamento local, remoto e dinâmico.
How to: Add ssh keys easily to another machine
I've had a few servers I was logging in using username and password and I kind of liked how Azure uses an ssh key for logging in (plus the fact it is more
SSH-Schlüssel Einfach auf Einer Anderen Maschine Hinzufügen
Kurzanleitung zum Hinzufügen von SSH-Schlüsseln auf Remote-Servern mit ssh-copy-id für sicherere passwortlose Authentifizierung.
Cómo Agregar Claves SSH Fácilmente a Otra Máquina
Guía rápida para agregar claves SSH a servidores remotos usando ssh-copy-id para una autenticación más segura sin contraseña.
Comment Ajouter Facilement des Clés SSH à une Autre Machine
Guide rapide pour ajouter des clés SSH à des serveurs distants avec ssh-copy-id pour une authentification plus sécurisée sans mot de passe.
Como Adicionar Chaves SSH Facilmente a Outra Máquina
Guia rápido para adicionar chaves SSH a servidores remotos usando ssh-copy-id para autenticação mais segura sem senha.
How to store your ssh public key in a different directory
I am no security expert so maybe this is not a great practice on shared server but in my scenario, all are trusted users so storing the ssh public keys of...
SSH-Public-Key in einem anderen Verzeichnis speichern
Sie kommen wahrscheinlich von einem früheren verwandten Beitrag (Gelöst: Permission denied (publickey))
Cómo almacenar tu clave pública SSH en un directorio diferente
Probablemente vienes de una publicación relacionada anterior (Resuelto: Permission denied (publickey))
Comment stocker votre clé publique SSH dans un répertoire différent
Avant de commencer, assurez-vous d'avoir : Un système exécutant Ubuntu (édition bureau ou serveur) Un accès au terminal avec des privilèges sudo Une...
Como armazenar sua chave pública SSH em um diretório diferente
Você provavelmente está vindo de um post relacionado anterior (Resolvido: Permission denied (publickey)
Resolved: 'Permission denied (publickey).' when trying to access via SSH an Ubuntu Server
Fix SSH 'Permission denied (publickey)' on Ubuntu caused by encrypted home directories. Covers diagnosis, multiple fixes, and other common causes of this error.
Gelöst: 'Permission denied (publickey).' beim SSH-Zugriff auf einen Ubuntu-Server
SSH-Fehler 'Permission denied (publickey)' unter Ubuntu beheben. Ursache: verschlüsselte Home-Verzeichnisse. Diagnose, mehrere Lösungen und häufige Ursachen.
Resuelto: 'Permission denied (publickey).' al intentar acceder por SSH a un servidor Ubuntu
Soluciona el error SSH 'Permission denied (publickey)' en Ubuntu por directorios home cifrados. Diagnóstico, múltiples soluciones y otras causas comunes.
Résolu : 'Permission denied (publickey).' lors de l'accès SSH à un serveur Ubuntu
Résolvez l'erreur SSH 'Permission denied (publickey)' sur Ubuntu causée par des répertoires home chiffrés. Diagnostic, plusieurs solutions et causes courantes.
Resolvido: 'Permission denied (publickey).' ao tentar acessar via SSH um servidor Ubuntu
Resolva o erro SSH 'Permission denied (publickey)' no Ubuntu por diretórios home criptografados. Diagnóstico, múltiplas soluções e causas comuns deste erro.
How to: Clone the mac address for the WAN interface on a Ubiquiti Unifi Security Gateway
Clone or spoof the MAC address on the WAN interface of a Ubiquiti UniFi Security Gateway to avoid ISP re-provisioning delays when replacing network equipment.
How to: Launch a Process that Persists even if you Disconnect your ssh Terminal
Launch a Process that Persists even if you Disconnect your ssh Terminal. Step-by-step guide with practical instructions.
Anleitung: Launch a Process that Persists even if you Disconnect your ssh Terminal
Anleitung: Launch a Process that Persists even if you Disconnect your ssh Terminal. Detaillierte technische Anleitung für IT-Profis.
Cómo: Launch a Process that Persists even if you Disconnect your ssh Terminal
Launch a Process that Persists even if you Disconnect your ssh Terminal. Guía técnica detallada para profesionales de TI.
Comment : Launch a Process that Persists even if you Disconnect your ssh Terminal
Comment : Launch a Process that Persists even if you Disconnect your ssh Terminal. Guide étape par étape avec instructions détaillées.
Como: Launch a Process that Persists even if you Disconnect your ssh Terminal
Como: Launch a Process that Persists even if you Disconnect your ssh Terminal. Guia passo a passo com instruções detalhadas.
How to: Create an SSH connection using Terminal on Mac OS X & save the configuration for later use / shortcut
Learn how to create an ssh connection using terminal on mac os x & save the configuration for. Step-by-step guide with examples.
Anleitung: Create an SSH connection using Terminal on Mac OS X & save the configuration for later use / shortcut
Learn how to create an ssh connection using terminal on mac os x & save the configuration for. Step-by-step guide with examples.
Cómo: Create an SSH connection using Terminal on Mac OS X & save the configuration for later use / shortcut
Learn how to create an ssh connection using terminal on mac os x & save the configuration for. Step-by-step guide with examples.
Comment : Create an SSH connection using Terminal on Mac OS X & save the configuration for later use / shortcut
Learn how to create an ssh connection using terminal on mac os x & save the configuration for. Step-by-step guide with examples.
Como: Create an SSH connection using Terminal on Mac OS X & save the configuration for later use / shortcut
Learn how to create an ssh connection using terminal on mac os x & save the configuration for. Step-by-step guide with examples.
What is a privileged port on a Mac / Darwin?
Bind to privileged ports below 1024 on macOS without running as root. Use port forwarding with pfctl or authbind alternatives for Node.js, Python, and Go apps.
Was ist a privileged port on a Mac / Darwin?
Privilegierte Ports unter 1024 auf macOS ohne Root binden. Portweiterleitung mit pfctl oder Authbind-Alternativen fuer Node.js, Python und Go verwenden.
Qué es a privileged port on a Mac / Darwin?
Vinculese a puertos privilegiados (menores a 1024) en macOS sin root. Use reenvio de puertos con pfctl o alternativas authbind para Node.js, Python y Go.
Qu'est-ce que a privileged port on a Mac / Darwin?
Liez-vous aux ports privilegies (inferieurs a 1024) sur macOS sans root. Utilisez la redirection avec pfctl ou des alternatives authbind pour Node.js et Python.
O que é a privileged port on a Mac / Darwin?
Vincule-se a portas privilegiadas (abaixo de 1024) no macOS sem root. Use redirecionamento com pfctl ou alternativas authbind para Node.js, Python e Go.
BSD General Commands Manual: SCP
SCP(1) BSD General Commands Manual SCP(1) NAME scp -- secure copy (remote file copy program) SYNOPSIS scp [ -12346BCpqrv ] [ -c cipher ] [ -F ssh_config ]
BSD General Commands Manual: SCP
SCP(1) BSD General Commands Manual SCP(1) NAME scp -- secure copy (remote file copy program) SYNOPSIS scp [ -12346BCpqrv ] [ -c cipher ] [ -F ssh_config ]
BSD General Commands Manual: SCP
SCP(1) BSD General Commands Manual SCP(1) NAME scp -- secure copy (remote file copy program) SYNOPSIS scp [ -12346BCpqrv ] [ -c cipher ] [ -F ssh_config ]
BSD General Commands Manual: SCP
SCP(1) BSD General Commands Manual SCP(1) NAME scp -- secure copy (remote file copy program) SYNOPSIS scp [ -12346BCpqrv ] [ -c cipher ] [ -F ssh_config ]
BSD General Commands Manual: SCP
SCP(1) BSD General Commands Manual SCP(1) NAME scp -- secure copy (remote file copy program) SYNOPSIS scp [ -12346BCpqrv ] [ -c cipher ] [ -F ssh_config ]