May 2017 - Techridez

Network Bonding On Centos.

by Teffin Varghese | May 31, 2017 | Howtos, Linux, Troubleshooting

Network interface bonding is a Linux kernel feature which allows to aggregate multiple interfaces (eth0,eth1) into one virtual link such as bond0. Network card bonding is an effective way to increase the available bandwidth. If bonded the interfaces appears as same physical device and they have same MAC address. The other names for network interface bonding are port trunking, NIC teaming channel bonding and link aggregation. The main advantage of bonded network interface is to increase data throughput by load balancing and to provide redundancy by allowing fail over from one component device to another.

## How to create a network interface bond?

Create a file named ifcfg-bondN in the directory /etc/sysconfig/network-scripts, Here “N” is the number of interfaces. Then edit the contents of ifcfg-bondn and make it similar to the configuration settings for an Ethernet interface except that DEVICE is set to bondn instead of ethn.

For example;

DEVICE=”bond0″

IPADDR=192.168.1.121

NETMASK=255.255.255.248

NETWORK=192.168.1.0

BROADCAST=192.168.1.255

ONBOOT=yes

BOOTPROTO=none

USERCTL=no

TYPE=Ethernet

BONDING_OPTS=”bonding parameters separated by spaces”

For each interface that you want to bond, edit its ifcfg-interface file so that it contains MASTER=bondN and SLAVE entries. An example is given below.

DEVICE=”eth0″

NAME=”System eth0″

IPADDR=192.168.1.101

NETMASK=255.255.255.0

BROADCAST=192.0.2.255

NM_CONTROLLED=”yes”

ONBOOT=yes

USERCTL=no

TYPE=Ethernet

BOOTPROTO=none

DEFROUTE=yes

IPV4_FAILURE_FATAL=yes

IPV6INIT=no

PEERDNS=yes

PEERROUTES=yes

MASTER=bond0

SLAVE

Create the file bonding.conf in the directory/etc/modprobe.d/, so that it contain entry for each bonded interface, for example:

alias bond0 bonding

It ensures that the kernel loads the bonding module is loaded when bring up the bonded interface. All bonded interfaces require entry in this file.

# ip link set eth0 down >> bring interface down

# ip link set eth1 down >> bring interface down

# ip link set bond0 up >> bring interface up

HAPPY BONDING 🙂

How to retrieve a serial from a remote computer

by George Sruthin | May 29, 2017 | Howtos, Windows

To find serial number of a given system ,you need system host-name of targeted machine , and it has to be online in the lan (network)

then open “cmd” then ping your hostname

if you receive all 4 packets back that means your targeted machine is online in the lan

now type following command in the command prompt

wmic /NODE: "INDIA-L090" bios get serialnumber

In this tutorial i have used “INDIA-L090” as host name this may vary in your case

enjoy

How to remove WOUtempAdmin User Profile

by George Sruthin | May 26, 2017 | Howtos, Troubleshooting, Windows

I have got this error after updating system using WSUS Offline utility,after successful update system restarts And the login screen by default shows the username of WOUTempAdmin. Not a big deal as I can log in with my admin account. But still a pain.

to fix this issue you have to follow the steps:

Press “Windows Key” and “R”

type “regedit” press Ok

Run “regedit” this will open Registry Editor

Note* Be careful when editing the registry. Don’t go into the registry editor and delete anything or change a setting unless you know exactly what you’re doing. If you do know what you’re doing and are careful to modify only the correct values, you shouldn’t have any problems. However, if you start deleting folders (known as “registry keys”) or modifying other values, you could seriously damage your Windows installation. When using the registry editor, always bear this warning in mind.

Navigate to HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon

Change DefaultUserName to your default user for eg: Administrator , i have used fragadmin0608 instead of Administrator this may vary

then within the registry you can find AutoAdminLogon

delete AutoAdminLogin

Confirm delete by pressing yes

Press F3 and search for any entry containing “woutemplogin” and delete it as long as the searchphrase can’t be found any more,then restart your system

After restart if you can see your login screen with your default username .then your issue is fixed

best of luck .

How to Convert batch file to Exe

by George Sruthin | May 8, 2017 | Howtos, Windows

Things you need

advancedbattoexeconverter.exe
a batch file

Now we have to add script to script file and verify it , if its works we can continue to further setup, then download advancedbattoexeconverter.exe and install in your system, Click to download app

I am using a simple script “which will show ipconfig result”for this tutorial , SORRY i have mistakenly named script file to ping.bat instead of ipconfig.bat 😀

Right click the batch file and click on “Open with Advanced BAT to EXE” option

Within the app you can read or edit script you have created, there are a lot of customization available, but i am skipping it and going to build exe, click on the “Build Exe” Button

This will popup a new windows, there you can add EXE icon, version file embed files and password, But for this tutorial i am going to just build the app, for that just click on Build EXE button , this will ask to save the exe file

save the file as exe, now you can run this file just like an application

Converting script to an exe will ensure more security, others will not get much confidential details whats running background and for the users this will be much more easier to click on a single app installed of executing a script file which is more complex and difficult for them, you can also create silent installation scripts to install application to systems using this kind of method

HPE completes Nimble Storage acquisition

by George Sruthin | May 4, 2017 | News, Storages

HPE has completed the acquisition of Nimble Storage, now a Hewlett Packard Enterprise company. This acquisition builds on our strategy to make Hybrid IT simple, through software defined infrastructure with a modern flash-optimized storage foundation. A report by IDC called the acquisition a “bold, strategic move” that will benefit our customers—and HPE couldn’t agree more.

The Nimble Storage offerings for predictive all-flash for entry to midrange segments are complementary to our scalable midrange to high-end HPE 3PAR solutions and affordable HPE MSA products. In addition, HPE will incorporate the InfoSight Predictive Analytics platform by Nimble Storage across our existing storage portfolio, which will enable continuity of products and deliver a transformed customer support experience.

With this acquisition, HPE will offer a full range of best-in-class all-flash storage solutions that will enable customers to compose the right storage for their exact application needs. Our comprehensive, flash-optimized storage portfolio across all workloads and resource requirements will provide:

Enterprise class for the all-flash datacenter: HPE 3PAR supports customers experiencing rapid growth and needing a highly scalable, all-flash data center capable of supporting up to millions of IOPS, petabyte capacity, and a multi-tenant architecture—priced from midrange to high-end.
Straightforward predictive flash: Nimble Storage is ideal for midmarket customers needing advanced, flash-optimized data services, including all-flash, hybrid-flash, and multicloud support, underpinned by machine-learning based predictive analytics, all at entry to midrange price points and designed with ease-of-use at its core.
Simple flash acceleration: HPE MSA and HPE StoreVirtual have an installed base of over 500,000 deployments worldwide and are suited for price-sensitive small site customers that need simple, flash tiering support at an entry price point.
Built-for-enterprise hyperconverged infrastructure: Nimble Storage also complements our recent SimpliVity acquisition for the growing hyperconverged market for those deploying turnkey VM-farms. The combination of SimpliVity, Nimble Storage, and HPE 3PAR enables customers to deploy the right data services across all workloads, scale and deployment types.