How to schedule a command on linux

How to schedule a command on linux
You can edit the crontab file to execute the command on scheduled time.
Below are the examples of crontab .
Linux Crontab Format

MIN HOUR DOM MON DOW CMD
Table: Crontab Fields and Allowed Ranges (Linux Crontab Syntax)
Field Description Allowed Value
MIN Minute field 0 to 59
HOUR Hour field 0 to 23
DOM Day of Month 1-31
MON Month field 1-12
DOW Day Of Week 0-6
CMD Command Any command to be executed.

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How to increase maximum upload file size in All-in-One WP Migration

How to increase maximum upload file size in All-in-One WP Migration

While migrating wordpress site to another hosting server you would be facing maximum upload file size limit . which let you stuck in wordpress migration .

to increase the maximum upload size you have to edit the  .htaccess file  under the root folder of your wordpress installation folder .

by default .htaccess file will be hidden to unhide you have to click on setting icon in file manager  right up corner in the Cpanel File manager.

and click on check box  of Show hidden files  as below

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Download custom VMware ESXi for Lenovo Servers

Download custom VMware ESXi for Lenovo Serversvmware lenovo

Updating firmware & device drivers

  1. Go to Lenovo Support Portal.
  2. Under Select a Product Family click on Data Center then select Servers.
  3. In the Select Series drop down box select ThinkSystem.
  4. In the Select Subseries drop down box select the model of your server.
  5. In the Select Machine Type drop down box select the machine type of your server.
  6. On the next page select Drivers & Software from the blue banner.
  7. In the Operating System drop down box select VMWare ESXi 6.7.
  8. This will display a list of the most recent firmware and device drivers for your system.
  9. Follow the Readme.txt file in each download package for installation instructions.

 

device drivers

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How to install Issabel on Centos 7

How to install Issabel on Centos 7

If you would like to install Issabel IP PBX on Cloud VPS . then  you have to choose Centos 7 64 bit while ordering VPS.

then run the following commands.

yum update
yum -y install wget
wget -O - http://repo.issabel.org/issabel4-netinstall.sh | bash

 

Source information :- https://forum.issabel.org/d/1145-install-in-a-vps

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How to configure Cisco Phone 7975g with Asterisk

How to configure Cisco Phone 7975g with Asterisk

To work with asterisk Cisco Phone 7975g must be upgraded with SCCP to SIP firmware

Follow my old post 

1-  Download SIP Firmware for Cisco Phone 7975g

2- Configure TFTP server and upload SIP firmware

3- Boot Cisco Phone with SIP firmware after upgrade

4- configure SEP_MACaddress.cnf.xml file

5- Reboot the Cisco Phone . Continue reading

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vicibox 10 time synchronization problem with your system

vicibox 10 time synchronization problem with your system

If you PHP time and DB time is matching and not syncing with system time

and its showing red line

If DB time is wrong it means that /usr/share/astguiclient/AST_update.pl script does not update DB value. Try to launch it manually and check for output.

If it throws error:

pattern match timed-out at /usr/share/astguiclient/AST_update.pl line 470

 

 

 

 

 

 

 

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How to show line number in nano command

How to show line number in nano command

if you want to show line number in nano command

run nano as you run normaly when window is open just press   Alt+Shift+3  it will show line number.

nano

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How to access Centos 7 with windows RDP

How to access Centos 7 with windows RDP

If you want to access your Centos 7 server with windows RDP same as you are accessing windows machine .

Then you need the following packege to install xRDP

1- Add epel reposetry

# yum install -y epel-release

2- Install xRDP

# yum install -y xrdp

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Peer cert cannot be verified or peer cert invalid

Peer cert cannot be verified or peer cert invalid while using yum

If you are getting above error then perform the following to resolve the yum error.

1- check and correct the date and time of the server.

2- Check /etc/hosts file for any false DNS resolutions of servers.

3-Disable SSL verification by adding    sslverify=false in /etc/yum.conf

4- Check repo file is using http or https and verify url.

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How to access data after booting with Sysrcd rescue system

How to access data after booting with Sysrcd rescue system

If you have servers in cloud or rented server on data center . some time its currepted or you need to get databack or edit and currect files.

you are booting with Sysrcd rescue system

sysrcd

 

 

 

 

 

After booting get ssh access and login

create a folder to mount your data or partition

mkdir  /backup

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