How To Enable SSH Login From OS X Yosemite 10.10.5 to macOS Ventura 13.3.1

Author: erics, May 19th, 2023

I was unable to login from my old iMac running Yosemite to my new iMac running Ventura using RSA keys. It turns out that RSA key support was disabled in Ventura. To correct the problem, I added the following two lines to the bottom of /etc/ssh/sshd_config:

HostkeyAlgorithms +ssh-rsa
PubkeyAcceptedAlgorithms +ssh-rsa

1 2	HostkeyAlgorithms +ssh-rsa PubkeyAcceptedAlgorithms +ssh-rsa

Categories: How-To's, Technology Tags: denied, HostKeyAlgorithms, howto, key, login, MacOS, OSX, Permission, Pubkey, PubkeyAcceptedAlgorithms, PublicKey, RSA, ssh, sshd, tips, Ventura, Yosemite | No comments

How To Login To A Docker Container Shell

Author: erics, February 15th, 2021

First, get the container ID using docker ps:

shell> docker ps
CONTAINER ID        IMAGE                 COMMAND                  CREATED             STATUS              PORTS                  NAMES
3bcc0baffd68        dashboard:1.0.10-88   "docker-php-entrypoi…"   29 minutes ago      Up 29 minutes       0.0.0.0:8080->80/tcp   dashboard

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shell> docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

3bcc0baffd68 dashboard:1.0.10-88 "docker-php-entrypoi…" 29 minutes ago Up 29 minutes 0.0.0.0:8080->80/tcp dashboard

Now run docker exec -it {ContainerID} /bin/bash:

shell> docker exec -it 3bcc0baffd68 /bin/bash
root@3bcc0baffd68:/var/www/html# exit

1 2	shell> docker exec -it 3bcc0baffd68 /bin/bash root@3bcc0baffd68:/var/www/html# exit

You can make a simple shell script to ease typing a bit:

shell> cat dshell
#!/bin/sh
# dshell
# usage: dshell ContainerID
docker exec -it $* /bin/bash

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shell> cat dshell

#!/bin/sh

# dshell

# usage: dshell ContainerID

docker exec -it $* /bin/bash

Categories: How-To's, Technology Tags: Container, Docker, docker exec, docker ps, Exec, howto, login, ps, Shell, tips | No comments

How To Fix MySQL Remote Login Errors

Author: erics, August 25th, 2016

In this case I had done a restore from a MySQL 5.1 server to a MySQL 5.6 server. That was not too smart, because it broke the mysql database table structures and prevented me from logging in remotely. Local login worked both via the socket and TCP. mysql -u root -p -h remoteHostName Enter password: […]

Categories: How-To's, Technology Tags: Error, howto, login, mysql, mysql_upgrade, remote, Remote Login, tips | No comments

How To Add a Login/Logout Menu Link in WordPress

Author: erics, January 19th, 2015

Simple Link

    $redirect = ( is_home() ) ? false : get_permalink();
    if ( is_user_logged_in() ) { 
        $link = '<a href="' . wp_logout_url( $redirect ) . '" title="Log Out">Log Out</a>';
    } else {
        $link = '<a href="' . wp_login_url( $redirect ) . '" title="Log In">Log In</a>';
    } 
    echo $link;

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$redirect = ( is_home() ) ? false : get_permalink();

if ( is_user_logged_in() ) {

$link = '<a href="' . wp_logout_url( $redirect ) . '" title="Log Out">Log Out</a>';

} else {

$link = '<a href="' . wp_login_url( $redirect ) . '" title="Log In">Log In</a>';

}

echo $link;

Complex Menu Link

// Add login/logout links to a menu
add_filter( 'wp_nav_menu_items', 'add_login_logout_to_menu', 50, 2 );
function add_login_logout_to_menu( $items, $args ){

    // change theme location with your them location name
    $myMenu = 'secondary'; // or primary, etc.

    if( is_admin() ||  $args->theme_location != $myMenu ) {
        return $items; 
    }

    $redirect = ( is_home() ) ? false : get_permalink();
    if ( is_user_logged_in() ) {
        $link = '<a href="' . wp_logout_url( $redirect ) . '" title="' .  __( 'Logout' ) .'">' . __( 'Logout' ) . '</a>';
    } else {
        $link = '<a href="' . wp_login_url( $redirect  ) . '" title="' .  __( 'Login' ) .'">' . __( 'Login' ) . '</a>';
    }
    
    $items .= '<li id="log-in-out-link" class="menu-item menu-type-link">'. $link . '</li>';

    return $items;
}

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// Add login/logout links to a menu

add_filter( 'wp_nav_menu_items', 'add_login_logout_to_menu', 50, 2 );

function add_login_logout_to_menu( $items, $args ){

// change theme location with your them location name

$myMenu = 'secondary'; // or primary, etc.

if( is_admin() || $args->theme_location != $myMenu ) {

return $items;

}

$redirect = ( is_home() ) ? false : get_permalink();

if ( is_user_logged_in() ) {

$link = '<a href="' . wp_logout_url( $redirect ) . '" title="' . __( 'Logout' ) .'">' . __( 'Logout' ) . '</a>';

} else {

$link = '<a href="' . wp_login_url( $redirect ) . '" title="' . __( 'Login' ) .'">' . __( 'Login' ) . '</a>';

}

$items .= '<li id="log-in-out-link" class="menu-item menu-type-link">'. $link . '</li>';

return $items;

}

Categories: How-To's, Technology Tags: add_filter, howto, Link, login, Login/Logout, Logout, Menu, tips, WordPress, wp_nav_menu_items | No comments

How To Enable the sa Login for MS SQL Server on AWS AMI

Author: erics, January 8th, 2013

To change security authentication mode: In SQL Server Management Studio Object Explorer, right-click the server, and then click Properties. On the Security page, under Server authentication, select the new server authentication mode (Windows and SQL auth), and then click OK. In the SQL Server Management Studio dialog box, click OK to acknowledge the requirement to […]

Categories: How-To's, Technology Tags: AWS, Enable, howto, login, sa, SQL, SQL Server, tips, windows | No comments

FreeBSD Crossover Serial Login

Author: erics, August 23rd, 2010

Connect the two servers using a serial null modem cable. This example assumes the first serial port (i.e. uart0 or COM1:). On host you want to login TO: Edit /etc/ttys to add the following: [code]ttyu0 "/usr/libexec/getty std.9600" vt100 on insecure[/code] Then run “kill -HUP 1” as root. On host you want to login FROM: Add […]

Categories: How-To's, Technology Tags: FreeBSD, login, null modem, serial port, tip hardwire | No comments

How To Enable SSH Login From OS X Yosemite 10.10.5 to macOS Ventura 13.3.1

How To Login To A Docker Container Shell

How To Fix MySQL Remote Login Errors

How To Add a Login/Logout Menu Link in WordPress

How To Enable the sa Login for MS SQL Server on AWS AMI

FreeBSD Crossover Serial Login

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