Today I got a request from our Security team to disable insecure SNMP v1 / v2c from a list of IP addresses. If you are still using SNMP v1 / v2c then it’s really the time to disable the version and configure secured SNMP v3. Sometime ago I wrote a post on how to install and configure Net-SNMP v3 in Linux, you might wanna check that out as well but now let’s get back to our task. So, I had no idea what these servers are because I like to memorize my servers with their host name. And I didn’t want to run
'dig' one by one on each IP. Also, I wanted to check whether these IP are alive / ping-able on my network or not. I could have done this by using
'for' loop and making one complicated command but for couple of reasons I chose not to go that way, Continue reading
CUPS (formerly Common Unix Printing System) provides print server capabilities to Unix like Operating Systems. There are basically two components of CPUS: print spooler (or simultaneous peripheral output on line) and scheduler. CUPS is based on standard network protocol Internet Printing Protocol (IPP) for managing print jobs and queues. Most of the Linux distributions use CUPS as their default printing system including Red Hat starting with Red Hat Linux 9. Today we will accomplish network printer configuration on Red Hat Enterprise Linux 5 via command line using CUPS. Continue reading
A file is the smallest unit of storage in the Unix file system (UFS). In Unix and Unix-like operating systems, each file is associated with an inode (Index Node) that stores the attributes like permissions, owner, group, size, type, time stamp, and etc. of file system objects like regular file, directory, and etc. Note that an inode contains all the information about a file except its name, which is kept in a directory. The size of an inode is 128 bytes. The inode allocation in UFS is static unlike XFS or NTFS that can easily cause lack of inodes if you have lot of small files. This makes the situation critical to place inode monitoring in place and do some trend analysis to prevent downtime. So here is the inode monitoring script to watch the inode usage on Solaris 10. The inode monitoring script can send you the email alert if the inode usage goes over 90% and also logs the data in CSV format for tracking the growth. You need to put the inode monitoring script in the crontab so it can work even if you are not in front of your server. Continue reading
Cron is a daemon in Linux that executes scheduled commands. Cron looks for /var/spool/cron directory for crontab files which are named after user accounts in /etc/passwd file and then found crontabs are loaded into the memory. Cron also searches for /etc/crontab file and the files in the /etc/cron.d directory. On Red Hat systems, crond supports access control with PAM (Pluggable Authentication Modules). A PAM configuration file for crond is installed in /etc/pam.d/crond. Crond loads the PAM environment from the pam_env module, but these can be overridden by settings in the crontab file. Continue reading
If we deploy Red Hat Enterprise Linux 6 virtual machine from template or clone running virtual machine in VMware vSphere then most probably we won’t have network on our new virtual machine. The bootup messages about the network interface shows:
# dmesg | grep -i eth0
eth0: NIC Link is Up 10000 Mbps
udev: renamed network interface eth0 to eth1
Now, list the current ethernet devices:
# ls /sys/class/net
The dynamic device manager udev stores the virtual machine’s network adapter information. In the virtual machine’s cloning process the MAC address of the network adapter changes but the udev sees it as a new network adapter and creates a new rules with new device name. You may view the udev network persistent rules: Continue reading
“The GoInstant team has built incredibly sophisticated technology. We will help them scale and grow so that social enterprises everywhere can engage with and delight customers in totally new ways.” - Parker Harris, EVP, Technology (Salesforce.com)
GoInstant, Halifax, Nova Scotia based, possess the technological edge which complements the Salesforce.com. Hence, Salesforce has spent whopping 70 plus million dollars to fetch the deal so that they can amalgamate GoInstant to Salesforce. With the acquisition deal salesforce.com is looking forward to make the GoInstant team grow even better which is already known for incredibly sophisticated technology. There are more 1,00,000 subscribers which are supposed to be effective from this acquisition deal. This is going to be a delightful experience for the company to serve the customers in entirely new way. Though, GoInstant will remain continue delivering magnificent shared web experiences.
GoInstant is a global enterprise which was founded in the year of 2010. The organization has scaled the height in area of Shared Web. There is a team involved which has founded the ‘GoInstant’, and extend it further. GoInstant is exclusively known for creating amazing Co-Browsing. Moreover, company is actively engaged in building amazing stuff for the virtual world. Company’s shared web technology lets the customers a amazing web browsing experience with no additional requirement of plug-ins, downloads or any other stuff. Goinstant is a web app (but isn’t free app) that does not need Java applets or flash to deliver the quality output. All you require is only a web browser. Moreover, the app is capable to establish a real time connection within participants in fewer seconds. All users are connected through a simple shared URL on a desktop PC, laptop, tablet – really on any web-browsing device. It is an excellent shared browsing solution for creating inter connectivity among the users.
Video: How GoInstant Co-Browsing works
Are you looking for university project format and project guidelines? Are you participating in any of these programs - Bachelor of Science in Information Technology (B.Sc.I.T.), Master of Science in Information Technology (M.Sc.I.T.), Master of Science in Telecom Technology (M.Sc.T.T.), Bachelor in Computer Applications (B.C.A.) and Master in Computer Applications (M.C.A.) from Sikkim Manipal University Distance Education? If yes, then here is the list of material, project format and project guidelines that should be prepared by each IT student who has registered for the SMUDE project examination. The format and guidelines are published for Fall 2012 IT students.