How to Postfix Flush the Mail Queue

Under Postfix MTA,

just enter the following command to flush the mail queue:
# postfix flush
OR
# postfix -f

To see mail queue, enter:
# mailq

To list all mail of queue, use one of the following commands.
# postqueue -p

To remove all mail from the queue, enter:
# postsuper -d ALL

To remove all mails in the deferred queue, enter:
# postsuper -d ALL deferred

SSL Library Error: -8181 Certificate has expired on centos server

SSL Library Error: -8181 Certificate has expired
Unable to verify certificate 'Server-Cert'. Add "NSSEnforceValidCerts off" to nss.conf so the server can start until the problem can be resolved


# vim /etc/httpd/conf/httpd.conf

add text "NSSEnforceValidCerts off"

and then save.

For reference How to know certification expiration date
Please execute command below.

# certutil -L -d /etc/httpd/alias -n Server-Cert

Restart service nss
# service nscd restart


Restart Service apache
# service httpd restart



Reff : https://ecl.ntt.com/en/news/2016122801/

how to auto mounting samba from fstab

How to auto mounting samba from fstab

#vim /etc/fstab

put this script :

//192.168.18.6/backup1 /mnt/backup1 cifs username=xxxxx,password=xxxxx 0 0

and then 

# mount -a

check result :

# df -h

How to synchronize file server without password root with SSH keygen on Centos 6

# ssh-keygen

ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 

NB: Please dont put password (Only Enter)

Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
41:71:f3:9b:14:tc:6f:de:fa:m1:05:c5:0d:65:b6:b7 root@svr7.server.co.id
The key's randomart image is:
+--[ RSA 2048]----+
|        o.oo. .+*|
|       . ..o.. ++|
|        .  .o ...|
|         . .oo .o|
|        x  oo. w.|
|            .... |
|             .o  |
|            .  . |
|             ..  |
+-----------------+



Copy id_rsa to server destination

# ssh-copy-id -i ~/.ssh/id_rsa.pub 192.9.18.25




Synchronize Script

# rsync -avz --delete /mnt/test/ root@192.9.18.25:/mnt/test/

Unwanted Attachments sent, named Part 1.2.2

please read here 

Find data by lastupdate beween two date

find /home/kusdi/Downloads/ -newermt 20170301 \! -newermt 20170310 > iso_doc.txt

script terminal delete file more then 7 day

find -P /home/data/mysql_backup -mtime +7 -delete

How to Mouting NFS Synology on Centos 6.5

#vim /etc/fstab


Put :

//192.9.18.11/Onlinebackup1/ /mnt/backup1   cifs  user=backup,password=xxx,rw,iocharset=utf8 0 0

Esc : wq   for Safe.

How to replace string on database firebird

How to  replace string on database firebird


select     replace ('Billy Wilder',  'il', 'oog') from  tablemaster_employee where  em_emplcode = 11111

How To Fix PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found" on centos 6.5

How to fix error PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found"  centos 6.5



Answer : Open terminal

# yum clean all

Enter.

Find and remove all file from termilal Linux

# find . -name "*Locky*" -exec rm -rf {} \;

or

# find . -type f -name "*.Locky*" -exec rm -i {} \;

remarks : 

-name "FILE-TO-FIND" : File pattern.
-exec rm -rf {} \; : Delete all files matched by file pattern.
-type f : Only match files and do not include directory name

Delete files older then 7 day on windows

forfiles -p "D:\test" -s -m *.* -d 7 -c "cmd /c del @path"


save with extention .bat