Linux Server Daily Reboot

Schedule a daily reboot with cron

Type:

sudo crontab -e
[sudo] password for user:
no crontab for root - using an empty one

Select an editor. To change later, run 'select-editor'.
 1. /bin/nano <---- easiest
 2. /usr/bin/vim.tiny

Choose 1-2 [1]:
crontab: installing new crontab

Add:

# m h dom mon dow command
40 1 * * * /sbin/reboot

In this case Every Day at 01:40 AM

Thanks to https://stackoverflow.com/questions/15393875/using-cron-to-reboot

Add Tomcat as Service Linux (Systemd)

Create file tomcat-systemd on  /etc/systemd/system/tomcat-systemd.service

nano /etc/systemd/system/tomcat-systemd.servicee

 

# Systemd unit file for tomcat
[Unit]
Description=Apache Tomcat Web Application Container
After=syslog.target network.target

[Service]
Type=forking

Environment=JAVA_HOME=/opt/tomcat/jdk1.8.0_121
Environment=CATALINA_PID=/opt/tomcat/apache-tomcat-7.0.75/temp/tomcat.pid
Environment=CATALINA_HOME=/opt/tomcat/apache-tomcat-7.0.75/
Environment=CATALINE_BASE=/opt/tomcat/apache-tomcat-7.0.75/
Environment='CATALINE_OPTS=-Xms1G -Xmx1G -Djava.net.preferIPv4Stack=true'
Environment='JAVA_OPTS=-Djava.awt.haedless=true -Djava.security.egd=file:/dev/./urandom'

ExecStart=/opt/tomcat/apache-tomcat-7.0.75/bin/startup.sh
ExecStop=/opt/tomcat/apache-tomcat-7.0.75/bin/shutdown.sh
#ExecStop=/bin/kill -15 $MAINPID

User=tomcat
Group=tomcat

[Install]
WantedBy=multi-user.target

Enable and start service

systemctl enable tomcat-systemd.service
systemctl start tomcat-systemd.service

We can test OK with:

ps -ef |grep java
systemctl status tomcat-systemd.service

Thanks to https://gist.github.com/obatiuk/15c84fb25826d4f39a303a454087e85a for systemd Script.

How to configure iLO from command line (HPe)

Si nos encontramos que tenemos que reconfigurar la IP de la placa ILO (OOB para HP) y no tenemos acceso desde esa LAN por algun motivo, podemos:

Teniendo instalado «HP Lights-Out Online» incluído en el «Service Pack for ProLiant»

 

Goto C:\Program Files\HP\hponcfg> or %ProgramFile%\HP\hponcfg

 

Then type:

hponcfg /w ilo.xml

this dumps iLO configuration into ilo.xml file

<RIBCL VERSION=”2.0″>
<LOGIN USER_LOGIN=”user” PASSWORD=”password”>
<RIB_INFO MODE=”WRITE” >
<MOD_NETWORK_SETTINGS>
<IP_ADDRESS VALUE = “x.x.x.x”/>
<SUBNET_MASK VALUE = “x.x.x.x”/>
<GATEWAY_IP_ADDRESS VALUE = “x.x.x.x”/>
<PRIM_DNS_SERVER value = “x.x.x.x”/>
<DHCP_ENABLE VALUE = “N”/>
</MOD_NETWORK_SETTINGS>
</RIB_INFO>
</LOGIN>
</RIBCL>

NOTE: The USER_LOGIN and PASSWORD tags are required, and must contain data, although any data is accepted.

 

Change IP related values and:

hponcfg /f ilo.xml

this writes new configuration back to the iLO and voilá.

 

Based on  Scripting Toolkit for Windows – Using HPONCFG also available on Linux.

 

Thanks to https://srvops.wordpress.com/2012/02/13/how-to-configure-ilo-from-command-line/

 

After installing Hyper-V Integration Services on the next reboot the VM displays BSOD 0x0000007B – P2V Hyper-V Guest BSOD 0x0000007e wdfldr.sys

After a P2V from an old server a BSOD was showing. I see same error related to WDFLDR.SYS.

Solution:

1. Boot the VM into LastKnownGood. Press F8 during boot.
2. Open the Registry and drill down to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Wdf01000 There is a Group Value that should have the Value WdfLoadGroup. In my cases it was wrongly set to base… Change this to WdfLoadGroup
3. Then remove the Integration Components from Control Panel/Software.
4. Reboot the VM (now without ICs)
5. Install the ICs once again

Thanks to robertvi2 from https://blogs.msdn.microsoft.com/robertvi/2009/10/07/after-installing-hyper-v-integration-services-on-the-next-reboot-the-vm-displays-bsod-0x0000007b/ to help to resolve this.

Enable/Disable Network interface via command line

Start elevated Command Prompt.

Get NIC list and index number:

wmic nic get name, index

Enable NIC with index number: (eg: 7)

wmic path win32_networkadapter where index=7 call enable

Disable NIC with index number: (eg: 7)

wmic path win32_networkadapter where index=7 call disable

Thanks To EddieZA from https://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/enabledisable-network-interface-via-command-line/17a21634-c5dd-4038-bc0a-d739209f5081

Add Davmail as Service Linux (Systemd)

Create file davmail-systemd on  /etc/systemd/system/davmail-systemd.service

nano /etc/systemd/system/davmail-systemd.service

[Unit]
Description=DavMail gateway service
After=syslog.target
After=network.target

[Service]
Type=simple
User=root
Group=root
ExecStart=/opt/davmail/davmail.sh /opt/davmail/davmail.properties
TimeoutSec=120

[Install]
WantedBy=multi-user.target

 

systemctl enable davmail-systemd

systemctl start davmail-systemd

We can test trafic with:

tail -f /opt/davmail/nohup.out

Thanks to https://github.com/stdevel/davmail-initscript/blob/master/davmail-systemd for systemd Script.