Is there a system admin tool for RHEL on montioring and logging system memory used and released that can dump to a log file?I'm having an issue with memory not being released when an application is closed. I need to have a tool monitor and log so I can troubleshoot to verify that it's an application not the OS.
View 2 RepliesHow to find, what are the files (system & user) created after login to the system in RHEL 5.0?
Any single command available?
Which is the best remote linux hardening GUI tool.Is it possible to use that tool from windows system?
View 8 Replies View Relatedi want to start a career in linux, completed btech in 2010, tell me the process of entering into linux world.
View 2 Replies View RelatedI'm currently system admin for mostly Solaris and Windows..however finding I need more linux than ever before.
View 6 Replies View RelatedHow to enable system logging in linux. can i check the logfile remotely of another system on same network
View 2 Replies View RelatedI am having issues loggin into Ubuntu 10.04 Lucid GUI. The system Stucks after entering username and passwords.
View 5 Replies View RelatedI've tried to use the GUI tool for update system in Fedora 10. It listed all of the available updates successfully, but it have not any response when i click the 'Update System' button~
View 2 Replies View RelatedI'm Pab, just like to know, How can I allow a new user to run specific software like sqlplus.
Scenario:
I have an oradb@database user where i can execute sqlplus /nolog command, but when i created a new user named allan@database the bash says....-bash:sqlplus: command not found.
I need a Linux distribution which has got drivers for pendrives and could play the music.
What version could you recommend for me?
Any idea, does RHEL5 support NTFS system.??
View 6 Replies View RelatedI have a dual boot Acer Aspire One, after reinstalling Windows back to "original factory", the way it was straight out of the box, it now will not boot up at all. It goes to the Windows start screen goes blank, and loops there infinitely. Is there a USB tool I can use to figure out what went wrong and recover either my Windows or Linux partition with out having to do a complete reinstall?
View 1 Replies View RelatedHow to install linux by using text mode or fdisk tool
View 3 Replies View RelatedI want to know which backup tool is used in Linux to back up data from windows machine to linux machine, is amenda? Please guide me.
Also tell me where to download it from?
I have Mythbuntu 10.04 installed on an exclusive HTPC and working great... until tonight. After letting the system update some packages (161 packages if I remember right), I suddenly have an issue where the graphical system won't start. After researching I found three error messages that might be causing that.
1. At the start of splash screen I see "UUID=xxxxxxxCD7 not ready yet or not present" I checked in /etc/fstab and found that this is the swap partition. I don't remember seeing this before so this could be the culprit.
2. I'm not at the computer in question right now but I saw a Plymouth error about "mountall" and then the message "plymouth command failed". Not sure if this could be the main error.
3. after a while (usually ca. 1-2 min) I receive thousands of errors of the kind "out of memory"... "kill process XXXX" (process vary wildly e.g. dbus-daemon, mysql, etc)... "process killed"..."respawning"
After error 3, I'm not able to switch to graphical console (ctrl-alt-F7). If I was in the graphical console at this moment, I simply can't switch to the CLI console. I'm always afraid of updating my system since I've seen lots of things breaking afterwards (usually the proprietary graphic drivers) but this is really strange.
I have it at lot that when a system crashes fatally and restarts (due to a power outage, kernel panic, tripping over a cord or something), there is no mention of it in the log. It just shows that the system was started. Is there a tool that will show this in the log? With a message like "system was not shut down properly or had a fatal crash / kernel panic" when restarting? It is pretty easy to do, just have a lock file somewhere that is removed when the system shuts down gracefully and that is left when it is not. And mechanism that checks this when starting up. It would also be possible to tell when the crash occured, as you can update the lock file from time to time and when the systems dies, it cannot anymore.
View 2 Replies View RelatedI have a friend that tried to change her user password on Windows, and now can't log in to her account. Of course it's the only user account on the computer. Are there system recovery tools on any Linux liveCDs that could change the passwords of Windows user account?
View 6 Replies View RelatedIf I have three (3) servers that are suppoed to be configured exactly alike, is there a tool or set of scripts that I can use to capture the information and do a system level comparison?
View 1 Replies View Related1.Can I install Suse Linux and RHEL 5 on same system (Laptop)?
How many OS can I install in one laptop?
My laptop name in Compaq Presario CQ42-462TU i5 M460 2.53GHz 3GB RAM 320GB Hard Disk
2. Can I install 64bit RHEL 6 and 32 bit RHEL 5.5 on same laptop?
I have RHEL 6 installed on my laptop, but when I try to install Suse Linux after hitting installtion button it starts loading lernel but then it blacks out and stays there for years.
It also shows some ACPI error when I tried to install second LINUX OS .
3.What should I do? Should I change my newly brought laptop?
I install RHEL 5.1 on my system. But my Ethernet card is not detected. I found my Ethernet card is of "ATTANSIC Technology corp L1 Gigabit Ethernet Adapter(rev b0). I already downloaded the driver. Someone tell me step by step process, how to install this driver over RHEL 5.1.
View 2 Replies View RelatedI have Fedora Directory Server with SSL running on my Linux Machine. I can see th output:
Code...
This shows that 636 port is open.But When I am attempting to this Linux Server from one of Windows Desktop it says "LDAP is Down".
I selected LDAPv3 and LDAPv3, hostname and SSL/TLS tried fetching base DN but it dint work.
I have a server running samba process and there are about 70 samba users connected at a time. The system has 4Gb of memory and it seems each samba process is utilizing only 3352Kb of memory.
When I run the command
pmap -d (pid of samba)
It gives as:
b7ffa000 4 rw-s- 0000000000000000 0fd:00003 messages.tdb
bfe46000 1768 rw--- 00000000bfe46000 000:00000 [ stack ]
ffffe000 4 r-x-- 0000000000000000 000:00000 [ anon ]
mapped: 33384K writeable/private: 3352K shared: 20504K
But when I run the top command, it results as below:
Tasks: 163 total, 1 running, 162 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.9% us, 4.9% sy, 0.0% ni, 93.3% id, 0.8% wa, 0.2% hi, 0.0% si
Mem: 3895444k total, 3163192k used, 732252k free, 352344k buffers
Swap: 2097144k total, 208k used, 2096936k free, 2487636k cached
Why could the system be utilizing such high memory? By the way, the server is not running other processes. The samba version running in it is 3.0.33-0.17.
The more context the better. So far it does not look like it has anything to do with memory.
View 4 Replies View RelatedIn system monitor, there are numerous processes. Some such as metacity and nautilus are using 12-21 mb memory. Since my server is a 512 mb computer, which services or processes can I safely remove or end ?
View 14 Replies View RelatedFound the below from RedHat Knowledgebase
The Completely Fair Queuing (cfq) scheduler in Red Hat Enterprise Linux 5appears to have worse I/O read performance than in version 4. It appears as though the Completely Fair Queuing I/O scheduler (cfq) has a regression and thus exhibits reduced read-side throughput which can affect performance for both local and NFS mounted file systems.
One way to mitigate this is to set the cfq's slice_idle parameter to zero. To change this value, execute the following command echo 0 > slice_idle in the /sys/block directory appropriate for your situation, as shown below:
echo 0 > /sys/block/hda/queue/iosched/slice_idle
We are using NFS file systems in RHEL 5.3. I would like to know how to find which /dev/Device is being used by the NFS file systems, so that I could try setting the slice_idle to '0' to see if there is any difference in performance? In /etc/fstab I only see the actual NAS volumes for the NFS file systems.
We have designed a board with Cirrus Logic(arm) processor, A Flash memory and some other peripherals have been connected to that. While building kernel we have selected MMU support. We have written few custom drivers for keypad,LED,LCD. But I would like to know how virtual memory mechanism can be helpful here even though there is no any hard disk has been connected. Where will be the virtual memory reside.
View 2 Replies View RelatedI have applied a patch in linux kernel version-2.6.31(fedora core 12)source code.Now I want to check whether the performance of the memory management part has been enhanced. So how to test the efficiency of this new modified code?
View 1 Replies View RelatedWhile messing around with file permissions and ownership of /var/www/ i seem to have locked myself out of being able to administer users on my 9.10 system.
when I go to the user administration screen in the icon with the keys is grayed out. with the message "not authorized to make changes". My account seems to have lost admin access. But, I'm the only user on the system.
I presumed I somehow changed my group status from the root group to something else
but, sudo usermod -g root [my name] just returns "no changes made"
All I can do for now is run as the su from the terminal. Is it possible to log into gnome with a root account?
I am writing a script that tells me which process consumes the most memory in the system this is what I have but I keep getting an error:
#! /bin/bash
# Autor: Jose miguel Colella
# Descripcion: Que proceso consume mas memoria
ps -e -o %mem -o args | sort -k 1 | tail -n2 | head -n1 | cut -d -f 3
I keep getting this message: cut: delimiter mist be a single character
A member suggested I install Samba (to be able to print to a Windows computer's printer).
I added Samba clients and support files using Add/Remove Software.
I rebooted, and found that the Printers choice in System/Administration had disappeared.
Could someone please suggest how I can get the Printers choice back? maybe a Terminal command to run the Printers config app so I can add a network printer?