Ubuntu Configuration New Installation configuration toss a good freshman

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To set the root administrator account password:

sudo passwd root

Enter the normal user password and then modify it.

After the change, log out with root

To install Remote services:

$ sudo apt-get install Openssh-server

$ sudo/etc/init.d/ssh Restart

Check Service Status:

Systemctl--failed

Server responded "algorithm negotiation faild." cannot be remote,

Vi/etc/ssh/sshd_config

Finally, add the following information:

Ciphers aes128-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr,aes256-ctr,3des-cbc,arcfour128,arcfour256, Arcfour,blowfish-cbc,cast128-cbc

MACs Hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,hmac-sha1-96,hmac-md5-96

Kexalgorithms DIFFIE-HELLMAN-GROUP1-SHA1,DIFFIE-HELLMAN-GROUP14-SHA1,DIFFIE-HELLMAN-GROUP-EXCHANGE-SHA1, diffie-hellman-group-exchange-sha256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521, Diffie-hellman-group1-sha1,[email protected]

Unable to use root remote, can be configured for OpenSSH server

$ sudo vi/etc/ssh/sshd_config

Locate the Permitrootlogin line and change to permitrootlogin Yes

Add parameters related to static IP, commenting on Dynamic DNS:

# The Primary network interface

Iface eth0 inet Static

Address 192.168.1.247

Netmask 255.255.255.0

Gateway 192.168.1.2

$sudo Ifdown eth0

$sudo ifup eth0

Test Link: OK.

The following page is attached to the reference information:

This error may be reported when you connect using an SSH client after installing Openssh-server, as shown in

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Server responded "algorithm negotiation failed"

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Workaround

Modify the configuration file for SSH/etc/ssh/sshd_config

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In the configuration file, add:

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Ciphers aes128-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr,aes256-ctr,3des-cbc,arcfour128,arcfour256, Arcfour,blowfish-cbc,cast128-cbc

MACs Hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,hmac-sha1-96,hmac-md5-96

Kexalgorithms DIFFIE-HELLMAN-GROUP1-SHA1,DIFFIE-HELLMAN-GROUP14-SHA1,DIFFIE-HELLMAN-GROUP-EXCHANGE-SHA1, diffie-hellman-group-exchange-sha256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521, Diffie-hellman-group1-sha1,[email protected]

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After restarting the SSHD service

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It will be connected properly.

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Send a Python test.

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Ubuntu Configuration New Installation configuration toss a good freshman