Aarvi

Linux

WHMCS client area blank

I was having an issue where WHMCS admin panel was working fine However, client area was showing a blank page So I enabled error logging in WHMCS in configuration.php file using below parameter $display_errors = true; and tried accessing WHMCS client area It showed Memory error which was a PHP memory issue Increasing PHP memory […]
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error: libcare:3 bad rotation count ‘5

Got an error from Anacron below error error: libcare:3 bad rotation count ‘5 # keep 5 last archives’ error: found error in /var/log/libcare/*.log , skipping The fix to this issue was open file /etc/logrotate.d/libcare /var/log/libcare/*.log { daily rotate 5 #keep 5 last archives missingok # it’s ok if there is no such file notifempty # […]
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Error Couldn’t find device with uuid

Got an error while working on a LVM system [root@ok1x40 daily]# vgs WARNING: Device for PV zwUwUP-OyCI-O3T4-c4l5-YCUV-8wpX-3UIA0x not found or rejected by a filter. WARNING: Device for PV zwUwUP-OyCI-O3T4-c4l5-YCUV-8wpX-3UIA0x not found or rejected by a filter. Couldn’t find device with uuid zwUwUP-OyCI-O3T4-c4l5-YCUV-8wpX-3UIA0x. VG #PV #LV #SN Attr VSize VFree vg 1 1 0 wz-pn- <9.88g […]
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Magento error Invalid command ‘

Invalid command ‘<IfVersion’, perhaps misspelled or defined by a module not included in the server configuration The above error is due to missing mod_version which needs to be added in apache using easyapache it was fixed once the mod_version module was added          
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How to add multiple ips in centos 7

In centos 7 by default ifconfig command will not work. You need to install it using this command yum install net-tools 1.  Create a file in /opt/1.sh 2.  create ip list in an excel sheet, Example: ip addr add 198.xxx.xx.xx dev enp6s0f0 label   enp6s0f0:1 ip addr add 198.xxx.xx.xx dev enp6s0f0 label   enp6s0f0:2 ip […]
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Redirecting HTTP to HTTPS

Redirecting HTTP to HTTPS RewriteEngine On RewriteCond %{SERVER_PORT} 80 RewriteRule ^(.*)$ https://www.yourdomain.com/$1 [R,L] Redirect Only a Specific Domain RewriteEngine On RewriteCond %{HTTP_HOST} ^yourdomain\.com [NC] RewriteCond %{SERVER_PORT} 80 RewriteRule ^(.*)$ https://www.yourdomain.com/$1 [R,L] Redirecting to HTTPS on a specific folder, add the following: RewriteEngine On RewriteCond %{SERVER_PORT} 80 RewriteCond %{REQUEST_URI} folder RewriteRule ^(.*)$ https://www.yourdomain.com/folder/$1 [R,L]
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[ERROR] Can’t init tc log Mariadb

2018-03-30 2:06:19 139671858284288 [Note] InnoDB: Dumping buffer pool(s) not yet started 2018-03-30 2:06:19 139672598403328 [Note] Plugin ‘FEEDBACK’ is disabled. 2018-03-30 2:06:19 139672598403328 [Note] Recovering after a crash using tc.log 2018-03-30 2:06:19 139672598403328 [ERROR] Can’t init tc log 2018-03-30 2:06:19 139672598403328 [ERROR] Aborting Was getting above error in mysql errorlog The solution to this issue was […]
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Windows OS not visible on dual boot

We had attempted a dual boot vps on KVM based vps The os were installed using ISO First to start with windows and then linux However after installing linux the windows OS went missing ON googling around found a solution The issue was due to missing modules where we had to install module  ntfs-3g [root@ohours […]
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umount: /backup: device is busy

While trying to unmount a secondary drive I see below error umount: /backup: device is busy. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) The issue was due to the drive /dev/sdb being used by some process Below is the process on how to find process […]
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SMTP AUTH is required for message submission on port 587

The ‘SMTP AUTH’ error usually happens when users try to send mails without properly authenticating their mail account in email clients such as Outlook or Thunderbird. What causes the error ‘SMTP AUTH is required for message submission on port 587’ in cPanel/WHM servers With the latest cPanel/WHM update, email accounts that were working fine till […]
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