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Hello I was copying some files from one server to other, that I relized the total file size ( sum of all files ) in one server is a bit more than the one that copied from ( about 6 when I do du -s ) individual file sizes are identical, when I do one by one file comparison, but the sum is different. is there any more accurate way to make sure of integrity of the file. ( other than pgp or

Hello Is there any good and quick document on building spec file. there is source file that has no rpm and we need to build the spec file and srpm. Thanks

Hi Biz_User needs to switch to Sales_User, and I tried following in sudoers: Biz_User ALL=(Sales_User) ALL but I get following error when I run sudo su - Sales_User "Sorry, user Biz_User is not allowed to execute '/usr/bin/su - Sales_User' as root on Server_Name" I know that if I add root in allowed users list, I can switch to other user , but in that way user can switch to

Hello My ssh terminal froze some times, and I was thinking it might be related to centos , but now I found that even ubuntu users experiencing the same problem. does ssh logs any where, and what do you suggest for finding the cause. Thanks

Hello Can we have different version of glibc on the same server ? Thanks

Hello Does every thing in /tmp directory will be removed when centos rebooted ? is there any where that we can change this settings ? Regards Babak

Hello We have Dell servers and need to monitor them through SNMP. but need to install or insert Dell MIBs to our Centos. is copying MIBs are enough ? has any one is using Dell OpenManage on Centos ? Thanks

Hello is there any fastcgi rpm available. I downloaded fastcgi rpm from pbone.net, but it does not contain mod_fastcgi.so what about srpm ? http://rpm.pbone.net/index.php3/stat/4/idpl/612033/com/mod_fastcgi-2.4.0-1.i386.rpm.html thanks for help

Hello what is the limitation of inode and journaling on 32 bit ext3 file system. what about 64 bit. Thanks

Hello I have downloaded the Centos ISO and installed in on my computer and uname -r shows 2.6.9-55.plus.c4 now I need exact version of source code to compile another application against it, but I can not find the exact source code. where can I find this exact version of source code ? Thanks

Hello our external scsi drive is detached, so it is not showing up in fdisk -l however it shows up mounted in /etc/mtab is there any command that I can run to detect and re attach the hard drive again ? I don't want to reboot the computer. Thanks

Hello Is kernel depends on Centos version, I mean I have installed Centos 4.3 and its kernel version is 2.6.9, but I want to upgrade the kernel to the latest available in kernel.org. also , is there any way to specify which kernel should be booted when we are restarting computer , rather than put the information in grub. Thanks

Hello Any time I am running sudo, I should have full path to the command, for example sudo /sbin/ifconfig Is there any way to set the path for sudo ? Thanks

Hello What is the largest file size that can be created on Linux ? is there any limitation ? Thanks

Hello I have compiled php on a server, but want to upgrade and recompile it with new features. is rpmbuild or rpmrebuild capable of compiling or adding these new features ? or I should download the source and run ./configure again ? what about yum ? it was great if yum or rpmbuild could save the current config and just add the new extensions. Thanks

Hello I have installed Centos 5.1 on 64 bit servers, and I see some of the packages have been installed two times, one for i386 and one for 64 bits. I don't know why i386 packages can be installed on 64 bit machine and why they should come together, even some times when I am searching yum repository , I see i386 and x64 packages. shouldn't the search result depend on server

Hello I have downloaded Centos 5.1 several times, but I am getting md5checksum error. also none of the websites on North America had DVD version. it is listed but I couldn't download it. any one else have the same problem. md5sum -c CentOS-5.1-x86_64-bin-DVD.iso ]???d?Fw6k.u!???*??z?Nc?-: No such file or directory ]???d?Fw6k.u!???*??z?Nc?-: FAILED open or read md5sum:

Hello What is the default or recommended file-max in /proc/sys/fs/ ? I remember that having a large number of open files or sockets make system be unstable, and now that I am checking my server the file-max is about 386466 . Is opened sockets will be added to opened files as well. Thanks

Hello is there any limitation for forking processes ? I mean how many child process can be belong to parent process ? Thanks

Hello in our Sysstat output we have the following lines, any one knows what does it mean ? 00:00:01 CPU i000/s i008/s i009/s i014/s i066/s i074/s i082/s i090/s 01:20:01 0 248.09 0.00 0.00 0.00 0.00 0.00 0.04 91.06 01:20:01 1 255.06 0.00 0.00 4.59 0.00 0.00 0.09 0.00 01:20:01 2 245.37 0.00 0.00 4.41