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R1Soft error Failed to backup LVM/MD Configuration

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R1Soft error will resemble something like – “Failed to backup LVM/MD Configuration” with running LVM based commands from R1Soft. Usually due to an upstream vendor or repo update of the LVM binary that conflicts with the R1soft native configuration “lvm.static” command. Error: Failed backup of LVM configuration Failed to execute command ‘lvm.static pvs -o pv_fmt,pv_uuid,dev_size,pv_name,pv_mda_free,pv_mda_size,pv_all,seg_all,pvseg_all,vg_all,lv_all … Read more

Error 401: Unauthorized: Access is denied due to invalid credentials

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When getting an error in Windows 2008 R2, Error 401: Unauthorized: Access is denied due to invalid credentials See – https://www.codeproject.com/Answers/418802/Unauthorized-Access-is-denied-due-to-invalid-c#answer1 Specifically Solution 6 with a minor adjustment. Right click on the folder in Explorer and choose Properties. In Security tab add ‘IIS_IUSRS’ and ‘NETWORK SERVICE’ and give full control to both user. Also check … Read more

Fix the Meltdown on a CentOS/RHEL/Fedora/Oracle/Scientific Linux

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How to Fix the Meltdown on a CentOS/RHEL/Fedora/Oracle/Scientific Linux Always keep backups. So backup now to an offsite location. Note the Linux kernel version running the following command: Fix the Meltdown on a CentOS/RHEL/Fedora/Oracle/Scientific Linux Type the following yum command: You must reboot your Linux server using shutdown/reboot command: Run the following dnf command if … Read more

Meltdown And Spectre Security Flaws

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Articles and Information regarding the Meltdown And Spectre Security Flaws Links: https://meltdownattack.com/ https://hothardware.com/news/researchers-disclose-meltdown-and-spectre-cpu-vulnerabilities https://www.theregister.co.uk/2018/01/02/intel_cpu_design_flaw/ Patches: VMware https://lists.vmware.com/pipermail/security-announce/2018/000397.html https://esxi-patches.v-front.de/ESXi-5.5.0.html#2017-09-14 How To’s Fix the Spectre on a CentOS/RHEL/Fedora/Oracle/Scientific Linux Fix the Meltdown on a CentOS/RHEL/Fedora/Oracle/Scientific Linux

Install Proftpd in CentOS 7

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How to Add Proftpd in CentOS 7 for ftp access. Step 1: Add the EPEL Repository ProFTPD is part of Extra Packages for Enterprise Linux (EPEL), which is a community repository of non-standard packages for the RHEL distribution. First, we’ll install the EPEL repository: Step 2: Install ProFTPD Let’s update first: Then let’s install ProFTPD … Read more

View Apache Statistics with Apache mod_status module

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The Apache mod_status module is something that can be very useful when troubleshooting high CPU or Memory usage with Apache. Taken it directly from the Apache documentation: – The number of worker serving requests. – The number of idle worker. – The status of each worker, the number of requests that worker has performed and … Read more

IPV6 Error Google Email

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I recently received an error when sending an email to google: The fix is to disable IPv6 in CentOS and postfix Resources: https://wiki.centos.org/FAQ/CentOS6#head-d47139912868bcb9d754441ecb6a8a10d41781df https://www.thegeekdiary.com/centos-rhel-7-how-to-disable-ipv6/ https://serverfault.com/questions/732187/sendmail-can-not-deliver-to-gmail-ipv6-sending-guidelines-regarding-ptr-record For Plesk: https://support.plesk.com/hc/en-us/articles/115002922789-How-to-disable-IPv6-addresses-on-a-Plesk-server-