docs: more md linting (#10371)

* clean 1-Minute-Polling.md formatting

* cleanup formatting for Adding-a-Device.md

* clean up formatting of Cleanup-options.md

* cleanup formatting some for CLI-Tools.md

* cleanup formatting for Syslog.md and Configuration.md

* cleanup formatting for Device-Sensors.md

* cleanup formatting for Device-Troubleshooting.md

* cleanup Discovery Support.md

* cleanup Environment-Variables.md

* cleanup Example-Hardware-Setup.md and FAQ.mg

* update Features.md, Install Validation.md, Perfermance.md, Poller Support.md, and index.md

* cleanup Remote-Monitoring-VPN.md, SNMP-Configuration-Examples.md, and SSL-Configuration.md

* lots of updates for Installation docs

* more installation doc cleanup

* more formatting cleanup

* clean Work-Map.md up some
This commit is contained in:
VVelox
2019-07-18 21:25:53 -05:00
committed by Tony Murray
parent cfdd23d2c2
commit 06b85f5b07
45 changed files with 3650 additions and 1801 deletions

View File

@@ -1,48 +1,66 @@
source: Installation/Installation-CentOS-7-Apache.md
path: blob/master/doc/
> NOTE: These instructions assume you are the **root** user. If you are not, prepend `sudo` to the shell commands (the ones that aren't at `mysql>` prompts) or temporarily become a user with root privileges with `sudo -s` or `sudo -i`.
> NOTE: These instructions assume you are the **root** user. If you
> are not, prepend `sudo` to the shell commands (the ones that aren't
> at `mysql>` prompts) or temporarily become a user with root
> privileges with `sudo -s` or `sudo -i`.
**Please note the minimum supported PHP version is 7.1.3**
## Install Required Packages ##
# Install Required Packages
yum install epel-release
```
yum install epel-release
```
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
```
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
yum install composer cronie fping git httpd ImageMagick jwhois mariadb mariadb-server mtr MySQL-python net-snmp net-snmp-utils nmap php72w php72w-cli php72w-common php72w-curl php72w-gd php72w-mbstring php72w-mysqlnd php72w-process php72w-snmp php72w-xml php72w-zip python-memcached rrdtool
```
yum install composer cronie fping git httpd ImageMagick jwhois mariadb mariadb-server mtr MySQL-python net-snmp net-snmp-utils nmap php72w php72w-cli php72w-common php72w-curl php72w-gd php72w-mbstring php72w-mysqlnd php72w-process php72w-snmp php72w-xml php72w-zip python-memcached rrdtool
# Add librenms user
#### Add librenms user
```
useradd librenms -d /opt/librenms -M -r
usermod -a -G librenms apache
```
useradd librenms -d /opt/librenms -M -r
usermod -a -G librenms apache
# Download LibreNMS
#### Download LibreNMS
```
cd /opt
git clone https://github.com/librenms/librenms.git
```
cd /opt
git clone https://github.com/librenms/librenms.git
#### Set permissions
# Set permissions
chown -R librenms:librenms /opt/librenms
chmod 770 /opt/librenms
setfacl -d -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
setfacl -R -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
````
chown -R librenms:librenms /opt/librenms
chmod 770 /opt/librenms
setfacl -d -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
setfacl -R -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
```
#### Install PHP dependencies
# Install PHP dependencies
su - librenms
./scripts/composer_wrapper.php install --no-dev
exit
```
su - librenms
./scripts/composer_wrapper.php install --no-dev
exit
```
## DB Server ##
# DB Server
#### Configure MySQL
## Configure MySQL
systemctl start mariadb
mysql -u root
```
systemctl start mariadb
mysql -u root
```
> NOTE: Please change the 'password' below to something secure.
```sql
CREATE DATABASE librenms CHARACTER SET utf8 COLLATE utf8_unicode_ci;
CREATE USER 'librenms'@'localhost' IDENTIFIED BY 'password';
@@ -51,7 +69,9 @@ FLUSH PRIVILEGES;
exit
```
vi /etc/my.cnf
```
vi /etc/my.cnf
```
Within the `[mysqld]` section please add:
@@ -59,22 +79,32 @@ Within the `[mysqld]` section please add:
innodb_file_per_table=1
lower_case_table_names=0
```
systemctl enable mariadb
systemctl restart mariadb
## Web Server ##
```
systemctl enable mariadb
systemctl restart mariadb
```
### Configure PHP
# Web Server
Ensure date.timezone is set in php.ini to your preferred time zone. See http://php.net/manual/en/timezones.php for a list of supported timezones. Valid examples are: "America/New_York", "Australia/Brisbane", "Etc/UTC".
## Configure PHP
vi /etc/php.ini
Ensure date.timezone is set in php.ini to your preferred time zone.
See <http://php.net/manual/en/timezones.php> for a list of supported
timezones. Valid examples are: "America/New_York",
"Australia/Brisbane", "Etc/UTC".
### Configure Apache
```
vi /etc/php.ini
```
## Configure Apache
Create the librenms.conf:
vi /etc/httpd/conf.d/librenms.conf
```
vi /etc/httpd/conf.d/librenms.conf
```
Add the following config, edit `ServerName` as required:
@@ -92,36 +122,47 @@ Add the following config, edit `ServerName` as required:
</VirtualHost>
```
> NOTE: If this is the only site you are hosting on this server (it should be :)) then you will need to disable the default site.
`rm -f /etc/httpd/conf.d/welcome.conf`
> NOTE: If this is the only site you are hosting on this server (it
> should be :)) then you will need to disable the default site. `rm -f /etc/httpd/conf.d/welcome.conf`
systemctl enable httpd
systemctl restart httpd
```
systemctl enable httpd
systemctl restart httpd
```
#### SELinux
# SELinux
Install the policy tool for SELinux:
yum install policycoreutils-python
```
yum install policycoreutils-python
```
##### Configure the contexts needed by LibreNMS:
## Configure the contexts needed by LibreNMS
semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/logs(/.*)?'
semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/logs(/.*)?'
restorecon -RFvv /opt/librenms/logs/
semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/rrd(/.*)?'
semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/rrd(/.*)?'
restorecon -RFvv /opt/librenms/rrd/
semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/storage(/.*)?'
semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/storage(/.*)?'
restorecon -RFvv /opt/librenms/storage/
semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/bootstrap/cache(/.*)?'
semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/bootstrap/cache(/.*)?'
restorecon -RFvv /opt/librenms/bootstrap/cache/
setsebool -P httpd_can_sendmail=1
```
semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/logs(/.*)?'
semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/logs(/.*)?'
restorecon -RFvv /opt/librenms/logs/
semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/rrd(/.*)?'
semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/rrd(/.*)?'
restorecon -RFvv /opt/librenms/rrd/
semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/storage(/.*)?'
semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/storage(/.*)?'
restorecon -RFvv /opt/librenms/storage/
semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/bootstrap/cache(/.*)?'
semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/bootstrap/cache(/.*)?'
restorecon -RFvv /opt/librenms/bootstrap/cache/
setsebool -P httpd_can_sendmail=1
```
# Allow fping
Create the file http_fping.tt with the following contents. You can
create this file anywhere, as it is a throw-away file. The last step
in this install procedure will install the module in the proper
location.
##### Allow fping
Create the file http_fping.tt with the following contents. You can create this file anywhere, as it is a throw-away file. The last step in this install procedure will install the module in the proper location.
```
module http_fping 1.0;
@@ -138,84 +179,126 @@ allow httpd_t self:rawip_socket { getopt create setopt write read };
Then run these commands
checkmodule -M -m -o http_fping.mod http_fping.tt
semodule_package -o http_fping.pp -m http_fping.mod
semodule -i http_fping.pp
```
checkmodule -M -m -o http_fping.mod http_fping.tt
semodule_package -o http_fping.pp -m http_fping.mod
semodule -i http_fping.pp
```
#### Allow access through firewall
# Allow access through firewall
firewall-cmd --zone public --add-service http
firewall-cmd --permanent --zone public --add-service http
firewall-cmd --zone public --add-service https
firewall-cmd --permanent --zone public --add-service https
```
firewall-cmd --zone public --add-service http
firewall-cmd --permanent --zone public --add-service http
firewall-cmd --zone public --add-service https
firewall-cmd --permanent --zone public --add-service https
```
### Configure snmpd
# Configure snmpd
Copy the example snmpd.conf from the LibreNMS install.
cp /opt/librenms/snmpd.conf.example /etc/snmp/snmpd.conf
```
cp /opt/librenms/snmpd.conf.example /etc/snmp/snmpd.conf
```
vi /etc/snmp/snmpd.conf
```
vi /etc/snmp/snmpd.conf
```
Edit the text which says `RANDOMSTRINGGOESHERE` and set your own community string.
curl -o /usr/bin/distro https://raw.githubusercontent.com/librenms/librenms-agent/master/snmp/distro
chmod +x /usr/bin/distro
systemctl enable snmpd
systemctl restart snmpd
```
curl -o /usr/bin/distro https://raw.githubusercontent.com/librenms/librenms-agent/master/snmp/distro
chmod +x /usr/bin/distro
systemctl enable snmpd
systemctl restart snmpd
```
### Cron job
# Cron job
cp /opt/librenms/librenms.nonroot.cron /etc/cron.d/librenms
```
cp /opt/librenms/librenms.nonroot.cron /etc/cron.d/librenms
```
> NOTE: Keep in mind that cron, by default, only uses a very limited set of environment variables. You may need to configure proxy variables for the cron invocation. Alternatively adding the proxy settings in config.php is possible too. The config.php file will be created in the upcoming steps. Review the following URL after you finished librenms install steps: https://docs.librenms.org/Support/Configuration/#proxy-support
> NOTE: Keep in mind that cron, by default, only uses a very limited
> set of environment variables. You may need to configure proxy
> variables for the cron invocation. Alternatively adding the proxy
> settings in config.php is possible too. The config.php file will be
> created in the upcoming steps. Review the following URL after you
> finished librenms install steps:
> <https://docs.librenms.org/Support/Configuration/#proxy-support>
#### Copy logrotate config
# Copy logrotate config
LibreNMS keeps logs in `/opt/librenms/logs`. Over time these can become large and be rotated out. To rotate out the old logs you can use the provided logrotate config file:
LibreNMS keeps logs in `/opt/librenms/logs`. Over time these can
become large and be rotated out. To rotate out the old logs you can
use the provided logrotate config file:
cp /opt/librenms/misc/librenms.logrotate /etc/logrotate.d/librenms
```
cp /opt/librenms/misc/librenms.logrotate /etc/logrotate.d/librenms
```
## Web installer ##
# Web installer
Now head to the web installer and follow the on-screen instructions.
http://librenms.example.com/install.php
<http://librenms.example.com/install.php>
The web installer might prompt you to create a `config.php` file in your librenms install location manually, copying the content displayed on-screen to the file. If you have to do this, please remember to set the permissions on config.php after you copied the on-screen contents to the file. Run:
The web installer might prompt you to create a `config.php` file in
your librenms install location manually, copying the content displayed
on-screen to the file. If you have to do this, please remember to set
the permissions on config.php after you copied the on-screen contents
to the file. Run:
chown librenms:librenms /opt/librenms/config.php
```
chown librenms:librenms /opt/librenms/config.php
```
# Final steps
### Final steps
That's it! You now should be able to log in to
<http://librenms.example.com/>. Please note that we have not covered
HTTPS setup in this example, so your LibreNMS install is not secure by
default. Please do not expose it to the public Internet unless you
have configured HTTPS and taken appropriate web server hardening
steps.
That's it! You now should be able to log in to http://librenms.example.com/. Please note that we have not covered HTTPS setup in this example, so your LibreNMS install is not secure by default. Please do not expose it to the public Internet unless you have configured HTTPS and taken appropriate web server hardening steps.
#### Add the first device
# Add the first device
We now suggest that you add localhost as your first device from within the WebUI.
#### Troubleshooting
# Troubleshooting
If you ever have issues with your install, run validate.php as root in the librenms directory:
If you ever have issues with your install, run validate.php as root in
the librenms directory:
cd /opt/librenms
./validate.php
```
cd /opt/librenms
./validate.php
```
There are various options for getting help listed on the LibreNMS web site: https://www.librenms.org/#support
There are various options for getting help listed on the LibreNMS web
site: <https://www.librenms.org/#support>
### What next?
# What next?
Now that you've installed LibreNMS, we'd suggest that you have a read of a few other docs to get you going:
Now that you've installed LibreNMS, we'd suggest that you have a read
of a few other docs to get you going:
- [Performance tuning](http://docs.librenms.org/Support/Performance)
- [Alerting](http://docs.librenms.org/Extensions/Alerting/)
- [Device Groups](http://docs.librenms.org/Extensions/Device-Groups/)
- [Auto discovery](http://docs.librenms.org/Extensions/Auto-Discovery/)
- [Performance tuning](http://docs.librenms.org/Support/Performance)
- [Alerting](http://docs.librenms.org/Extensions/Alerting/)
- [Device Groups](http://docs.librenms.org/Extensions/Device-Groups/)
- [Auto discovery](http://docs.librenms.org/Extensions/Auto-Discovery/)
### Closing
# Closing
We hope you enjoy using LibreNMS. If you do, it would be great if you would consider opting into the stats system we have, please see [this page](http://docs.librenms.org/General/Callback-Stats-and-Privacy/) on what it is and how to enable it.
We hope you enjoy using LibreNMS. If you do, it would be great if you
would consider opting into the stats system we have, please see [this
page](http://docs.librenms.org/General/Callback-Stats-and-Privacy/) on
what it is and how to enable it.
If you would like to help make LibreNMS better there are [many ways to help](http://docs.librenms.org/Support/FAQ/#what-can-i-do-to-help). You can also [back LibreNMS on Open Collective](https://t.libren.ms/donations).
If you would like to help make LibreNMS better there are [many ways to
help](http://docs.librenms.org/Support/FAQ/#what-can-i-do-to-help). You
can also [back LibreNMS on Open
Collective](https://t.libren.ms/donations).