Hunter Lowe's questions

I recently managed to get my Ubuntu Server 18.04 machine connected to my companies Windows AD. I am able to login with my AD credentials however I want to take it a step further...

This is the article I followed in order to get my Ubuntu 18.04 machine onto the windows domain, note I did not do any configuration on restricting ssh login to a domain group as I am still struggling. https://www.smbadmin.com/2018/06/connecting-ubuntu-server-1804-to-active.html?showComment=1548915938955#c6716393705599388679

However....

The goal of what I am trying to achieve is as follows:

• Add a line to /etc/sudoers file that specifies an AD group within my organization.
• This groups members should have sudo access on the Linux machines in our organisation.

What I've done:

• I tried adding lines like :
• "nameofdomain\nameofgroup ALL=(ALL:ALL) ALL"
• And more.... However whenever I try to sudo with a user I know is in the group I receive the usual "...user not in sudoers... incident will be reported..."

What could be the reason for this? Is it perhaps due to the configurations I've specified when connecting the machine to the AD domain?

The full path to this group is as follows: - domainname/Groups/Elab/Elab-Level3

Here is the configuration for my files used to join the AD domain:

krb5.conf

[libdefaults]
    default_realm = MYREALM
dns_lookup_kdc = true
dns_lookup_realm = true

...... rest of file ........

realmd.conf

[users]
 default-home = /home/%D/%U
 default-shell = /bin/bash

[active-directory]
 default-client = sssd
 os-name = Ubuntu Server
 os-version = 18.04

[service]
 automatic-install = no

[mydomain]
 fully-qualified-names = yes
 automatic-id-mapping = no
 user-principal = yes
 manage-system = yes

sssd.conf

[sssd] 
domains = mydomain config_file_version = 2
services = nss, pam, ssh

[domain/mydomain]
ad_domain = mydomain
krb5_realm = MYDOMAIN
realmd_tags = manages-system joined-with-adcli 
cache_credentials = True
id_provider = ad
krb5_store_password_if_offline = True
default_shell = /bin/bash
ldap_id_mapping = True
use_fully_qualified_names = False
fallback_homedir = /home/%u@%d
access_provider = ad
ldap_user_ssh_public_key = altSecurityIdentities

I'm really hoping that someone here has the answer, I've searched many many threads and have not been able to crack this nut

My machine is an Ubuntu 16.04 Server running on a thin client. These machines are meant to act as an rdp connection to servers where employees will do other work

What is the format of an .xsession file? I would like to create one and place inside directory /home/user

This file should launch chromium-browser after startx is executed.

How do I go about this?

I have seen that there are many duplicate threads similar to this one on AskUbuntu, however, none of them have helped me so I'm back to square one.

I've installed Ubuntu 18.04 on my Dell Latitude E6430. I've confirmed that the WiFi switch is in fact, on. So that is not the problem.

My machine has the following network adapter installed:

Broadcom Limited BCM4313 802.11bgn Wireless Network Adapter (rev 01)

How do I get WiFi working on my machine? I would like to find the perfect solution, it seems this is a problem which plagues many a Ubuntu users.

Here is the output of rkfill list:

2: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
3: dell-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: yes
4: dell-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
5: dell-wwan: Wireless WAN
    Soft blocked: no
    Hard blocked: yes

I am attempting to create a simple script which will generate files in /etc/apache2/sites-available directory using a for loop, and get it to do this using a template within my script. This is what the snippet of my script looks like:

cat <<EOF > /etc/apache2/sites-available/${VHOST}.com.conf 
<VirtualHost *:80>
ServerName ${VHOST}.com
ServerAlias www.${VHOST}.com
ServerAdmin [email protected]
DocumentRoot /var/www/${VHOST}.com
ErrorLog ${APACHE_LOG_DIR}/${VHOST}_error.log
CustomLog ${APACHE_LOG_DIR}/${VHOST}_access.log combined
Options -Indexes
</VirtualHost>
EOF 

NOTE: ${VHOST} is simply a value specified within my for loop.

The result which I am trying to achieve is that the template output will be sent to a file ${VHOST}.com.conf within the sites-available directory.

My above snippet does not work and I receive the following errors:

./vhost.sh: line 21: warning: here-document at line 6 delimited by end-of-file (wanted `EOF')
./vhost.sh: line 21: syntax error near unexpected token `newline'
./vhost.sh: line 21: `<<-EOF <VirtualHost *:80>'

UPDATE:

I followed @PerlDuck's suggestion by updating the file as follows

cat > /etc/apache2/sites-available/${VHOST}.com.conf <<-EOF
<VirtualHost *:80>
ServerName ${VHOST}.com
ServerAlias www.${VHOST}.com
ServerAdmin [email protected]
DocumentRoot /var/www/${VHOST}.com
ErrorLog ${APACHE_LOG_DIR}/${VHOST}_error.log
CustomLog ${APACHE_LOG_DIR}/${VHOST}_access.log combined
Options -Indexes
</VirtualHost>

Attempting cat > /etc/apache2/sites-available/${VHOST}.com.conf <<- "EOF" also did not work. Both produce the same error.

./vhost.sh: line 22: warning: here-document at line 6 delimited by end-of-file (wanted `EOF')
./vhost.sh: line 23: syntax error: unexpected end of file