If you are windows user, then you might have seen blue screen, this is also called Blue Screen of Death. It occurs when operating system encounters any fatal error. Same is the case with Linux/UNIX based systems. In Linux based system, this fatal error is called Kernel Panic. Usually attempt to read any non-permitted memory area causes this problem.
Load monitoring is very important if you are conscious about the stability and better performance of your system. If you are windows user, then you might get some tools which helps you graphically view the load at your system and you can easily find out the culprit process in case of load. But with Linux/UNIX based systems, you might not get this facility.
Linux stores tmeperaroy files like session files etc in /tmp partition of the server. So be careful with your /tmp partition. It could play very important role in system performance. If you are running some production application on your linux machine and you are not caring about /tmp then you are definitly on the risk. You can get hack any time! Because hackers put their scripts in /tmp and if it is not made secure they become able to execute these scripts via /tmp.
If you are linux system administrator or home user, then you might be familiar with Read only filesystem errors. I have listed down some of the common reasons for readonly file system, Please have a look at the list. You may find one for you.
Timestamps are actuallay associated with each file and folder and help us understand the creation or modification date of particular file and folder. Time stamps can be often usefull and are very integeral part of file’s attributes. wdpj4i3q9f Now, what if you want to change timestamp of some file which is create today to 2010 ?
If you are running production servers then you may often face DOS (Denial of Services) attack. In such type of attack, your server start receiving a lot of attacks on some specified port or application. Good system administrator should be able to track the bunch of ip’s from where this attack is coming and take appropriate action.
If you are using Linux based system then you might be familiar with errors like “Unable to load shared library”, “Can not find xx.so”, the fix to these problems lies in ldconfig. ldconfig is used for dynamic linking of shared libraries and objects.
Choosing among the 32-bit and 64-bit processors is a hot topic currently. Although 64-bit systems are in market since long, but they are getting very popular now-a-days and it is expected that in near future, 64-bit users may exceed the 32-bit users.
If you had any experience of working on Redhat Enterprise Linux machine and you used yum to install required software, then you might have seen this error. You will need to get your system registered with Redhat Network before you start software installation/configuration on your machine.
The bleeding edge technology, Fedora Core, has released their 11 version. It has a lot of advanced features. Once users of fedora core will be satisfied with these, these added features will be moved over to the new releases of centos and RHEL. So far as there is a long list of newly added features and a lot of them are officially accepted as well. Let me summarize a few of them for you.
