Step to rebuild crontab file of zimbra user: Difference between revisions

 
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===<h1>Step to rebuilt crontab file of zimbra user</h1>===
{{BC|Certified}}
__FORCETOC__
<div class="col-md-12 ibox-content">
==Step to rebuild crontab file of zimbra user==  
<hr>
<hr>
<br>
{{KB|{{ZC}}|{{ZCS 8.8}}|{{ZCS 8.7}}|{{ZCS 8.6}}|{{ZCS 8.5}}|}}
<h2>Problem</h2>


Default crontab of zimbra user removed accidentally.
==Problem==
* Default crontab of zimbra user removed accidentally.
* System admin removed some entries from the crontab file.


'''OR'''


System admin removed some entries from the crontab file.
==Solution==


<h2>Solution</h2>
Steps to restore or rebuild crontab entries for the zimbra user on different ZCS environments.


Steps to restore or rebuilt crontab entries for the zimbra user on different ZCS environments.
===(A)  Steps for single-server setup: ===


====(A)  Steps for single-server setup :====
First we have to take backup of current crontab file, then we will use following commands to rebuild crontab for zimbra user.


First we have to take backup of current crontab file, then we will use following command to re-built crontab for zimbra user.
==== On ZCS v8.6: ==== 
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK 
cat /opt/zimbra/zimbramon/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab.ldap >> /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab.store >> /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab.logger >> /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab.mta >> /tmp/cron.zimbra
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra
crontab -u zimbra /tmp/cron.zimbra 
su - zimbra -c "zmschedulebackup -D"


<pre>
==== On ZCS v8.7.x and Above: ==== 
# cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK   
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK   
# cat /opt/zimbra/zimbramon/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab > /tmp/cron.zimbra
# cat /opt/zimbra/zimbramon/crontabs/crontab.ldap >> /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab.ldap >> /tmp/cron.zimbra
# cat /opt/zimbra/zimbramon/crontabs/crontab.store >> /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab.store >> /tmp/cron.zimbra
# cat /opt/zimbra/zimbramon/crontabs/crontab.logger >> /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab.logger >> /tmp/cron.zimbra
# cat /opt/zimbra/zimbramon/crontabs/crontab.mta >> /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab.mta >> /tmp/cron.zimbra
# echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra  
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra  
# crontab -u zimbra /tmp/cron.zimbra   
crontab -u zimbra /tmp/cron.zimbra   
# su - zimbra -c "zmschedulebackup -D"  
su - zimbra -c "zmschedulebackup -D"
# /etc/init.d/crond restart 
</pre>


====(B)  Steps for multi-server setup :====
===(B)  Steps for multi-server setup: ===


Here we have mentioned the commands according to the role of ZCS server.
Here we have mentioned the commands according to the role of ZCS server.


=====LDAP Server :=====
==== On ZCS v8.6: ==== 
===== LDAP Server: =====
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK
cat /opt/zimbra/zimbramon/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab.ldap >> /tmp/cron.zimbra 
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra 
crontab -u zimbra /tmp/cron.zimbra 
su - zimbra -c "zmschedulebackup -D"


<pre>
===== Mailbox Server: =====
# cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK  
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK  
# cat /opt/zimbra/zimbramon/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab > /tmp/cron.zimbra
# cat /opt/zimbra/zimbramon/crontabs/crontab.ldap >> /tmp/cron.zimbra   
cat /opt/zimbra/zimbramon/crontabs/crontab.store >> /tmp/cron.zimbra
# echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra   
  echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra   
# crontab -u zimbra /tmp/cron.zimbra   
crontab -u zimbra /tmp/cron.zimbra   
# su - zimbra -c "zmschedulebackup -D"  
su - zimbra -c "zmschedulebackup -D"  
# /etc/init.d/crond restart
/etc/init.d/crond restart
</pre>


=====Mailbox Server :=====
===== MTA+Proxy Server: =====
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK 
cat /opt/zimbra/zimbramon/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab.mta >> /tmp/cron.zimbra
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra
crontab -u zimbra /tmp/cron.zimbra 


<pre>
# cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK  
==== On ZCS v8.7.x and Above: ==== 
# cat /opt/zimbra/zimbramon/crontabs/crontab > /tmp/cron.zimbra
===== LDAP Server: =====
# cat /opt/zimbra/zimbramon/crontabs/crontab.store >> /tmp/cron.zimbra
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK  
# echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra   
cat /opt/zimbra/conf/crontabs/crontab > /tmp/cron.zimbra
# crontab -u zimbra /tmp/cron.zimbra   
cat /opt/zimbra/conf/crontabs/crontab.ldap >> /tmp/cron.zimbra
# su - zimbra -c "zmschedulebackup -D"  
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra   
# /etc/init.d/crond restart
crontab -u zimbra /tmp/cron.zimbra   
</pre>
su - zimbra -c "zmschedulebackup -D"  


=====MTA+Proxy Server :=====
===== Mailbox Server: =====
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK
cat /opt/zimbra/conf/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab.store >> /tmp/cron.zimbra
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra 
crontab -u zimbra /tmp/cron.zimbra 
su - zimbra -c "zmschedulebackup -D"


<pre>
===== MTA+Proxy Server: =====
# cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK   
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK   
# cat /opt/zimbra/zimbramon/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab > /tmp/cron.zimbra
# cat /opt/zimbra/zimbramon/crontabs/crontab.mta >> /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab.mta >> /tmp/cron.zimbra
# echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra  
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra  
# crontab -u zimbra /tmp/cron.zimbra   
crontab -u zimbra /tmp/cron.zimbra   
# /etc/init.d/crond restart
</pre>


'''Note :'''


We have to restart Cron service after installing new crontab file.


'''Here is the commands to restart Cron service on different OS versions.'''
'''Note :'''  We have to restart Cron service after installing new crontab file.


Ubuntu 12.04/14.04
'''Commands to restart Cron service on different OS versions.'''


Ubuntu 12.04/14.04/16.04
  service cron restart
  service cron restart


RHEL/CentOS 7.x
RHEL/CentOS 7.x
  systemctl restart crond
  systemctl restart crond
systemctl status crond


RHEL/CentOS 6.x
RHEL/CentOS 6.x
  service crond restart
  service crond restart






Heera Singh
{| class="wikitable" style="background-color:#d0f0c0;" cellpadding="10"
|'''Submitted by''':  Heera Singh Koranga
|}


<hsingh@zimbra.com>
{{Article Footer|ZCS 8.8, 8.7, 8.6|2017-08-23}}

Latest revision as of 07:43, 23 May 2020

  1. Zimbra Tech Center
  2. Certified
  3. Step to rebuild crontab file of zimbra user

Step to rebuild crontab file of zimbra user

   KB 23338        Last updated on 2020-05-23  




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Problem

  • Default crontab of zimbra user removed accidentally.
  • System admin removed some entries from the crontab file.


Solution

Steps to restore or rebuild crontab entries for the zimbra user on different ZCS environments.

(A) Steps for single-server setup:

First we have to take backup of current crontab file, then we will use following commands to rebuild crontab for zimbra user.

On ZCS v8.6:

cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK  
cat /opt/zimbra/zimbramon/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab.ldap >> /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab.store >> /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab.logger >> /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab.mta >> /tmp/cron.zimbra
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra 
crontab -u zimbra /tmp/cron.zimbra   
su - zimbra -c "zmschedulebackup -D"

On ZCS v8.7.x and Above:

cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK  
cat /opt/zimbra/conf/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab.ldap >> /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab.store >> /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab.logger >> /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab.mta >> /tmp/cron.zimbra
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra 
crontab -u zimbra /tmp/cron.zimbra   
su - zimbra -c "zmschedulebackup -D"

(B) Steps for multi-server setup:

Here we have mentioned the commands according to the role of ZCS server.

On ZCS v8.6:

LDAP Server:
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK 
cat /opt/zimbra/zimbramon/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab.ldap >> /tmp/cron.zimbra  
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra  
crontab -u zimbra /tmp/cron.zimbra   
su - zimbra -c "zmschedulebackup -D"
Mailbox Server:
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK 
cat /opt/zimbra/zimbramon/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab.store >> /tmp/cron.zimbra
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra  
crontab -u zimbra /tmp/cron.zimbra   
su - zimbra -c "zmschedulebackup -D" 
/etc/init.d/crond restart
MTA+Proxy Server:
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK  
cat /opt/zimbra/zimbramon/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/zimbramon/crontabs/crontab.mta >> /tmp/cron.zimbra
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra 
crontab -u zimbra /tmp/cron.zimbra


On ZCS v8.7.x and Above:

LDAP Server:
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK 
cat /opt/zimbra/conf/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab.ldap >> /tmp/cron.zimbra  
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra  
crontab -u zimbra /tmp/cron.zimbra   
su - zimbra -c "zmschedulebackup -D"
Mailbox Server:
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK 
cat /opt/zimbra/conf/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab.store >> /tmp/cron.zimbra
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra  
crontab -u zimbra /tmp/cron.zimbra   
su - zimbra -c "zmschedulebackup -D"
MTA+Proxy Server:
cp -pvr /var/spool/cron/zimbra  /tmp/zimbra.cron.BAK  
cat /opt/zimbra/conf/crontabs/crontab > /tmp/cron.zimbra
cat /opt/zimbra/conf/crontabs/crontab.mta >> /tmp/cron.zimbra
echo "# ZIMBRAEND -- DO NOT EDIT ANYTHING BETWEEN THIS LINE AND ZIMBRASTART" >> /tmp/cron.zimbra 
crontab -u zimbra /tmp/cron.zimbra


Note : We have to restart Cron service after installing new crontab file.

Commands to restart Cron service on different OS versions.

Ubuntu 12.04/14.04/16.04 

service cron restart

RHEL/CentOS 7.x 

systemctl restart crond

RHEL/CentOS 6.x 

service crond restart


Submitted by: Heera Singh Koranga
Verified Against: ZCS 8.8, 8.7, 8.6 Date Created: 2017-08-23
Article ID: https://wiki.zimbra.com/index.php?title=Step_to_rebuild_crontab_file_of_zimbra_user Date Modified: 2020-05-23



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