SSH (sshd_config.conf)
Desabilitando protocolo 1(inseguro) no SSH
Categoria: Segurança
Software: SSH
[ Hits: 12.883 ]
Por: Lucas Diniz de Paula Lima
Conforme citado em meu comment neste artigo, segue o meu arquivo de configuração do SSH server aqui da empresa. Por padrão, edito apenas duas linhas desse arquivo: a linha começada por "Protocol" habilita APENAS o protocolo 2. Na segunda linha editada, desabilito o login de root no servidor.
# $OpenBSD: sshd_config,v 1.59 2002/09/25 11:17:16 markus Exp $ # This is the sshd server system-wide configuration file. See # sshd_config(5) for more information. # This sshd was compiled with PATH=/usr/local/sbin:/usr/sbin:/sbin:/usr/local/bin:/usr/bin:/bin # The strategy used for options in the default sshd_config shipped with # OpenSSH is to specify options with their default value where # possible, but leave them commented. Uncommented options change a # default value. #Port 22 Protocol 2 #ListenAddress 0.0.0.0 #ListenAddress :: # HostKey for protocol version 1 #HostKey /etc/ssh/ssh_host_key # HostKeys for protocol version 2 #HostKey /etc/ssh/ssh_host_rsa_key #HostKey /etc/ssh/ssh_host_dsa_key # Lifetime and size of ephemeral version 1 server key #KeyRegenerationInterval 3600 #ServerKeyBits 768 # Logging #obsoletes QuietMode and FascistLogging #SyslogFacility AUTH #LogLevel INFO # Authentication: #LoginGraceTime 120 PermitRootLogin no #StrictModes yes #RSAAuthentication yes #PubkeyAuthentication yes #AuthorizedKeysFile .ssh/authorized_keys # rhosts authentication should not be used #RhostsAuthentication no # Don't read the user's ~/.rhosts and ~/.shosts files #IgnoreRhosts yes # For this to work you will also need host keys in /etc/ssh/ssh_known_hosts #RhostsRSAAuthentication no # similar for protocol version 2 #HostbasedAuthentication no # Change to yes if you don't trust ~/.ssh/known_hosts for # RhostsRSAAuthentication and HostbasedAuthentication #IgnoreUserKnownHosts no # To disable tunneled clear text passwords, change to no here! #PasswordAuthentication yes #PermitEmptyPasswords no # Change to no to disable s/key passwords #ChallengeResponseAuthentication yes # Kerberos options #KerberosAuthentication no #KerberosOrLocalPasswd yes #KerberosTicketCleanup yes #AFSTokenPassing no # Kerberos TGT Passing only works with the AFS kaserver #KerberosTgtPassing no # Set this to 'yes' to enable PAM keyboard-interactive authentication # Warning: enabling this may bypass the setting of 'PasswordAuthentication' #PAMAuthenticationViaKbdInt no #X11Forwarding no #X11DisplayOffset 10 #X11UseLocalhost yes #PrintMotd yes #PrintLastLog yes #KeepAlive yes #UseLogin no #UsePrivilegeSeparation yes #PermitUserEnvironment no #Compression yes #MaxStartups 10 # no default banner path #Banner /some/path #VerifyReverseMapping no # override default of no subsystems Subsystem sftp /usr/libexec/sftp-server
O que é o THP na configuração de RAM do Linux e quando desabilitá-lo
Comparação entre os escalonadores BFQ e MQ-Deadline (acesso a disco) no Arch e Debian
Conciliando o uso da ZRAM e SWAP em disco na sua máquina
Servidor de Backup com Ubuntu Server 24.04 LTS, RAID e Duplicati (Dell PowerEdge T420)
Como unir duas coleções de ROMs preservando as versões traduzidas (sem duplicatas)
Como instalar o Telegram Desktop no Ubuntu 24.04
Overclocking Permanente para Drastic no Miyoo Mini Plus
Problemas de chaves (/usr/share/keyrings) no Debian
Converter os repositórios Debian para o novo formato com as chaves
eu preciso saber uma coisa sobre os games no linux (3)
eu preciso saber uma coisa sobre os games no linux (1)
Problema com audio apos upgrade (1)