Tag Archives: user

Can’t log into NixOS after Install!

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You thought everything went well with your NixOS install, you reboot, enter your username and password, and bam! Login incorrect.

Okay, try it again.

Login incorrect

Hmm…

Let’s try root. Nope, same thing…

If you don’t enter the password in correctly for root at the end of an installation, there will not be a root password, hence you can not log in.

Best way to keep this from happening is to make sure the password is set up before rebooting.

If you are one of those unfortunate souls who entered the wrong root password and missed the warning at the end of the installation

Try the following.

nixos-enter --root '/mnt'

Note: If you already rebooted, boot up on the minimum USB drive, mount the root partition, then run the nixos-enter command.

mount /dev/disk/by-label/nixos /mnt
nixos-enter --root '/mnt'

passwd to set the root password. You can also set your user password with 

passwd username

Change username to your username.

Reboot and login!

LibreNMS Devices Disappeared from Web Interface

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What do you do when all your devices disappear from the web interface?

Everything still appears to be working. Alerts work.

Running a MySQL command to check if the devices are in the database returns all the devices

mysql -u librenms -p librenms -e 'use librenms ; select hostname,sysName,status from devices where status=1'

If we try going to /addhost we are greeted with an Error You have insuffecient permissions to view this page.

Running ./validate.php returns everything good

Potentially it could be an issue with SElinux or with Apache/NGinx

Running 

audit2why < /var/log/audit/audit.log

Doesn’t return anything

No errors pop up in the Logs

Could be something happened with the LibreNMS user.

Test a different LibreNMS user and all the devices show up.

We’ve now isolated the issue to being something with out user.

How to Add a User from Windows Command Prompt

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Adding a user from a Windows command prompt is easy. We can use the net user command. Specify the username and password, append a /ADD and we are off to the races.

net user username password /ADD

Example Command.

net user incredigeek mysecurepassword /ADD

https://www.windows-commandline.com/add-user-from-command-line/

Baicells eNodeB – Random Stuff

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SSH
Looks like Default SSH port is 27149

Software
Runs Quagga

CELL> show version
Quagga 0.99.21 ().
Copyright 1996-2005 Kunihiro Ishiguro, et al.

https://www.quagga.net/

Settings
show network config

CELL> enable
CELL# show network
% Command incomplete.
CELL# show network config
network.loopback=interface
network.loopback.ifname='lo'
network.loopback.proto='static'
network.loopback.ipaddr='127.0.0.1'
network.loopback.netmask='255.0.0.0'
network.lan=interface
network.lan.proto='static'
network.lan.ipaddr='192.168.150.1'
network.lan.netmask='255.255.255.0'
network.lan.mtu='1496'
network.lan.ifname='eth2.3'
network.wan=interface
network.wan.ifname='eth2'
network.wan.media='copper'
network.wan.proto='dhcp'
network.defRouteIf=defRouteIf
network.defRouteIf.defRouteIf='wan'
CELL#

Users

CELL# show user
User      Permission    State
---------------------------------
admin     admin         unlocked
anonymous admin         unlocked
---------------------------------
CELL#

User commands

CELL# user
 USERNAME User name
 add Add user
 delete Delete user
 lock User lock
 role User role
 unlock User unlock
CELL# user

OpenVas set password for user

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After installing OpenVAS you may need to setup a user. Running the following command will create the user admin and will print the password for the user below.

openvasmd --create-user admin

Example output.

User created with password 'b4539967-c521-fe41-d255-aeb53e735h9a'.

If needed you can delete a user with the following command

openvasmd --delete-user=USERNAME

BASH Script to add new SFTP user and setup permissions

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This script adds a new SFTP user with only sftp access.  Refer to this post on setting up a SFTP server.

Download script

wget www.incredigeek.com/home/downloads/scripts/sftpUserAdd.sh

Make executable

chmod +x sftpUserAdd.sh

Run with the new user you want to create.

./sftpUserAdd.sh sftpUsername

You may need to edit the script and modify the location parameters.

#!/bin/bash
# Automatically setup and add SFTP user
# Script creates new user and setups permissions
newUser=$1
sftpDir="/sftp/"
if grep -q ${newUser} /etc/passwd ;then
        echo ${newUser} Already exsists.  Aborting!
        exit 1
else
        mkdir -p ${sftpDir}/${newUser}/files
        useradd -g sftpusers -d ${sftpDir}/${newUser}/files -s /sbin/nologin ${newUser}
        passwd ${newUser}
        chown ${newUser}:sftpusers /sftp/CareMark/files
fi