Ashik E Sadatia – Page 3 – Ashik E Sadatia

Hi, I am Ashik E Sadatia

Have a decade of experience in Information technology & Broadcast Engineering. My core interesting subject is Linux & Cloud computing. Specialist in infrastructure design & implementation.

Disable open relay on Postfix

Ashik E SadatiaSecurityApril 1, 2017

Edit /etc/postfix/main.cf smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination smtpd_sender_restrictions = reject_unknown_sender_domain Shows a list of files in queue postqueue -p postfix reload postsuper -d ALL to delete all the items in queue tail /var/log/mail.log -n 100

Requirement of Linux Security Engineer

Ashik E SadatiaSecurityMarch 24, 2017

Linux System ● Building and administrating Red Hat Enterprise Virtualization for Servers ● Building and administrating Red Hat Enterprise Linux Servers ● Using GFS2, KVM, and clustering Linux systems ● Patching and building servers using Red Hat Network Satellite Server …

AWS Database Types

Ashik E SadatiaawsMarch 6, 2017

RDS OLTP SQL Oracle MariaDB PostgreSQL MySQL Aurora DynamoDB – No SQL RedShift- OLAP Elasticache- In memory caching Memcached redis The following table shows the IOPS and storage range for each database engine. Range of Provisioned IOPS Range of …

Creating the ISO Library Folder in Xen Server

Ashik E SadatiaXen ServerFebruary 23, 2017

XenCentre doesn’t give the option to do this, so the CLI was the only option. Step 1 – Creating the ISO Library Folder Connect to the XenServer using SSH and then issue the following command: “mkdir -p /var/opt/xen/ISO_Store” Step 2 …

Boot a guest VM from CD or DVD in XenServer

Ashik E SadatiaXen ServerFebruary 23, 2017

In order to boot from cd or dvd you need to change the guest virtualization type from HVM (fully virtualized) to PV (paravirtualized). $ sudo xenstore-read vm | xargs -n1 basename 54a95df1-d4f3-67f7-46d3-6dcd1d1143ab xe vm-param-set HVM-boot-policy="BIOS order" uuid=[uuid of your vm] …

Security Group AWS

Ashik E SadatiaawsFebruary 23, 2017

All inbound traffic is blocked by default All outbound traffic is Allowed by default Changes to Security Group take effect immediately You can have any number of EC2 instances within a security group You can have multiple security groups attached …

Hardening php with SuHosin

Ashik E SadatiaSecurityJanuary 18, 2017

; Logging Configuration suhosin.log.syslog.facility = 9 suhosin.log.use-x-forwarded-for = Off ; Executor Options suhosin.executor.max_depth = 0 suhosin.executor.include.max_traversal = 4 suhosin.executor.disable_emodifier = Off suhosin.executor.allow_symlink = Off ; Misc Options suhosin.simulation = Off suhosin.apc_bug_workaround = Off suhosin.sql.bailout_on_error = Off suhosin.multiheader = Off suhosin.mail.protect …

How to Fix Pluggable.php File Errors in WordPress

Ashik E SadatiawordpressNovember 22, 2016

Phasellus in nibh eu nisl hendrerit malesuada. Aenean pretium volutpat nisi et facilisis. Vivamus tristique nunc lorem, sit amet venenatis orci fermentum quis. In nisl sem, varius elementum nisl nec, tristique ultrices risus. Nunc mi ligula, fringilla id condimentum et, …

How to Add a WordPress Widget to Your Website Header

Ashik E SadatiawordpressNovember 22, 2016

WordPress.com Launches VR Content, Coming Soon to Jetpack

Ashik E SadatiawordpressNovember 22, 2016

Hi, I am Ashik E Sadatia

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