Universal Logging System

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===== Download & Installation =====

Download the {{:uls:uls-server-1.9.6-4.tgz|}} and 
follow the installation instruction for different operating systems. 


-----

==== Installation ====

-----

=== Debian 10 to Debian 12 ===

Install the operating system and chose the software: SSH-server, Standard-system tools

Become root and install Maria-DB:

<code bash>
# apt-get install mariadb-server libmariadb-dev dh-make
</code>

Enter the password for mysql-root and file it for further use.

Install gcc for compiling the u2webtools:

<code bash>
# apt-get install build-essential libssl-dev 
</code>

Install gnuplot for the generation of charts:

<code bash>
# apt-get install gnuplot
</code>

Install gnu-awk (needed for the processing of start-stop tuples):

<code bash>
# apt-get install gawk
</code>

Install wkhtmltopdf from [[https://wkhtmltopdf.org/downloads.html|wkhtmltopdf.org]]
<code bash>
# apt-get install libpng12-0                # may be required on Raspbian
# dpkg -i wkhtmltox_<version>.deb
</code>

Install mailutils for sending mails:

<code bash>
# apt-get install mailutils
</code>

Add language support for at least german and english, mark "de_DE.UTF-8 UTF-8" and "en_US.UTF-8 UTF-8":
<code bash>
# dpkg-reconfigure locales
</code>

Unpack the ULS-server, version 1.9.6:

<code bash>
# tar xf ULS-Server-1.9.6-2.tgz
# cd ULS-Server-1.9.6
</code>

Install u2webtools from {{ :unix2web:u2webtools-mariadb_9.7-7debian10_amd64.deb |}}, {{ :unix2web:u2webtools-mariadb_9.7-7debian11_amd64.deb |}} or {{ :unix2web:u2webtools-mariadb_9.9-4debian12_amd64.deb |}}



Adjust Maria-DB configuration

<code bash>
# vi /etc/mysql/mariadb.conf.d/50-server.cnf 
...
max_allowed_packet   = 64M
max_connections      = 2000
group_concat_max_len = 1024000
sql_mode             = ''
</code>

and restart Maria-DB with:

<code bash>
# systemctl restart mysql
</code>


Start the installation:

<code bash>
# cd ulsserver
# ./installuls.sh
</code>

You will be prompted for the mysql-root password. On Debian 10 and 11 hit return for no password.

Now, the ULS-server is running and waits for its base configuration.

Point your webbrowser to 'https://localhost/' and login 
as user 'admin', password 'NewAdmin'.

-----

==== ULS Basic Configuration ====

You **must** make configurations to the ULS-server!

Use your webbrowser, open [[https://localhost/]] and login 
as user 'admin', password 'NewAdmin'.

:TODO: This may be English or German, depending on your browser settings.

"Admin-Menü"
"Verfahren" -> "Verfahren bearbeiten"

Fill last line and hit OK.


"Server" -> "Server anlegen"

{|
!Sin:
|<ServerIdentNumber>
|-
!Servername:
|<Servername> (short name)
|-
!domain:
|chose - each source must be related to a domain
|-
!IP-address:
|IP-address from which agents send values to the ULS-server
|-
!transfer-IP:
|a probably existing alternative IP-address, second interface
|-
!value-IPs:
|alternate or virtual IP-address from which agents send values to the ULS-server. Mainly used in cluster environments
|}

:TODO: the following is not finished yet.


"Gruppen" -> "Gruppen anlegen" Gruppenname vergeben "OK"

Ggf. Button "alle Verfahren", damit das Verfahren des Clients erscheint.
Haken unter Verfahren setzen.
"OK"

"User" -> "User anlegen"
Haken bei Gruppe setzen.
"OK"


Install the ULS-client for Linux

Download file {{ :uls:agents:uls-client_3.14-5debian10_amd64.deb |}}, {{ :uls:agents:uls-client_3.14-5debian11_amd64.deb |}} or {{ :uls:agents:uls-client_3.15-8debian12_amd64.deb |}} and 
install the package using the GDebi installation program.

Configure the uls-client: Set the ulsserver ip-address or the ulsserver name in /etc/uls/uls.conf.

<code bash>
$ vi /etc/uls/uls.conf
...
ULSSERVER=<ulsserver>:11976
</code>

Check  directory /var/tmp/uls for files, should look like:

<code bash>
$ ls -al /var/tmp/uls
drwxrwxrwt  2 uls  ulsuser   4096 Dez 23 14:40 .
drwxrwxrwt 14 root root    299008 Dez 23 14:40 ..
-rw-------  1 root root       929 Dez 23 14:40 dat-0-8550.uls
-rw-------  1 root root       789 Dez 23 14:40 dat-0-8575.uls
-rw-------  1 root root       400 Dez 23 14:40 dat-0-8602.uls
-rw-------  1 root root       381 Dez 23 14:40 dat-0.uls
-rw-------  1 uls  ulsuser    720 Dez 23 14:39 dat-900.uls
</code>

If no files are shown, check the crontab entries:

<code bash>
$ cd /etc/cron.d/
$ cat ulsclient
</code>

to verify that the crontab file has been created and the entries 
are activated.

If the files do not disappear (not transferred to the ULS-server), try:

<code bash>
$ flush_test_values -t
</code>

:TODO: further explanation is needed.

To check, if an error condition exists, e.g. "ERROR from ULS-Server: NOSRV", 
which means that the current hostname has not been set up as an ULS-client.

Setup a user that can access the ULS domain! 

Values should appear after about 5 to 10 minutes.
-----

==== Update ====

Update from version 1.9.2 or newer to version 1.9.5

Install the u2webtools_mariadb-9.7-7 from the "Media Manager". Unpack {{:uls:uls_update-1.9.5.tgz}} and run the updatescript:
<code bash>
tar xf uls-update-1.9.5.tgz
cd update
./uls_update.sh <db-root-user>
</code>

After an update to version 1.9.5 and before an update to version 1.9.6 every user should logon to the ULS-server.
For users without logon under version 1.9.5 an admin user has to reset the password.

Update from version 1.9.5 to version 1.9.6

Unpack {{:uls:uls_update-1.9.6.tgz}} and run the updatescript:
<code bash>
tar xf uls-update-1.9.6.tgz
cd update
./uls_update.sh <db-root-user>
</code>
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