Fedora is a fast, stable, powerful, free RPM-based GNU/Linux operating system that is developed by the community-supported Fedora Project and sponsored by Red Hat. The Fedora Project's mission is to lead the advancement of free and open source software and content as a collaborative community.

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28
votes
3answers
22k views

How do you validate fstab without rebooting?

I modified /etc/fstab. I verified the new devices and I can mount them with the mount command. How may I validate the modifications made to /etc/fstab ?
23
votes
6answers
50k views

How to VNC into an existing X session?

Would like to be able to connect to an existing X display, so can access my work environment and everything I left open from home. I vaguely remember something about using x11vnc in the past. But the ...
18
votes
13answers
11k views

Complete restore of linux system

I am familiar with using rsync to back up various files from my system but what is the best way to completely restore a machine. What I have tried in the past is: Do a basic format/reinstall from ...
18
votes
2answers
48k views

How to enable iptables (instead of firewalld) services on RHEL 7 and Fedora 18?

The newest fedora has firewalld as new firewall aplication. I liked old iptables services. I want them back but have no idea how to do that. I have tried : systemctl disable firewalld.service ...
17
votes
1answer
11k views

nginx: no permission to bind port 8090 but it binds to 80 and 8080

I'm struggling with some strange permission related behavior: when I configure nginx to listen to port 8080 everything works as expected, but when I use any other port I get something like 2014/01/10 ...
17
votes
7answers
21k views

Headless linux install

How do you do a headless install of linux? No monitor, no keyboard. Machine has floopy and cd drive. Can I configure a live cd to run sshd with a preconfigured pass or something similar and manage it ...
16
votes
14answers
12k views

What is the problem with using Fedora for servers?

I have used Fedora for hosting servers a lot of times. I have never faced any problem. Still all the new users come and tell Fedora is not secure. We should use Ubuntu / CentOS or some other ...
16
votes
2answers
903 views

How to uninstall newly installed dependencies for a RPM package?

Is there an easy way to make a list of the dependencies a newly installed RPM package will install with yum? Example: If you do yum install ruby then it will also install some rubygems. But when I ...
15
votes
3answers
26k views

Listing available smb shares on a network through the command line in linux

I was wondering if there is a way of listing all the smb servers on a local network (like looking at a network neighborhood in windows) via the command line in fedora.
15
votes
4answers
20k views

How to resize root LVM partition in Fedora without LiveCD or Rebooting

I have a virtual machine that recently had its disk image increased from 20GB to 50GB, and fdisk -l verifies that the VM can see this new size. Now I need to resize my root LVM partition to fill the ...
15
votes
5answers
9k views

Why does my ssh timeout vary with network location?

When I'm ssh'ed into one of our office servers (which run Fedora 10) from home, my session times out after a fairly short period of activity (5 minutes or so). I've tried using TcpKeepAlive on the ...
14
votes
3answers
12k views

Installing Fedora RPMs in CentOS

How safe is it to install Fedora RPMs in CentOS 5? Does it depend on the version of the Fedora RPM or is it generally better to steer clear?
14
votes
5answers
2k views

Managing iptables rules in Linux

I have a lot of rules for my iptables setup (routing, ssh bans etc) I also picked up a list of IP's to ban from here http://blacklist.linuxadmin.org and now its getting really complicated. My /etc/...
13
votes
2answers
33k views

What is rootfs?

I'm a longtime Fedora user and I've just installed FC15. The new partition layout is confusing to me, as I'm used to the "plain vanilla" partitions that previous versions used. [root@localhost ~]# df ...
12
votes
3answers
884 views

grep behaving differently on Fedora vs Ubuntu

So when I run this in Fedora I'm seeing this: $ ls hmm_data/indivA12_AATAAG/refs/par1/ 2R-orths.alleles 2R-ref.alleles $ ls hmm_data/indivA12_AATAAG/refs/par1/ | grep -F '-ref.alleles' 2R-ref....
11
votes
4answers
5k views

How to stress test an apache server running on a linux box

There seems to be something taking our server off-line and we are having trouble tracing the cause, if it is down to load of a particular site or a script. It does seem to be Apache related. Does ...
11
votes
3answers
39k views

Why wget doesn't verify SSL certificates?

I have a problem with my Fedora 8 installation. It looks that wget doesn't know how to verify SSL certificates any more. It's strange because I have another Fedora 8 box which I believe has the same ...
11
votes
2answers
15k views

How to find what is using linux swap or what is in the swap?

I have virtual linux (Fedora 17) server with 28GB RAM and 2GB swap. The server is running mysql db that is set up to use most of the RAM. After some time running the server starts to use swap to swap ...
10
votes
3answers
9k views

Bare minimum Fedora installation?

I am looking for the bare minimum packages that I need to install for a fedora Linux machine. I do not need the X Window System or anything else. The machine will be used as a server and managed ...
9
votes
7answers
7k views

How to disable responses to PING [closed]

I feel like this should be a really simple thing to do, but googling and checking SF I didn't see anything. I'm trying to make my Fedora server not respond to pings, how do I do that?
9
votes
5answers
26k views

RHEL 6: View boot messages “behind” the splash screen

I know there was a way to do the above in Fedora. I cannot for the life of me remember what the key was; nor can I find documentation via a web search.
9
votes
2answers
8k views

Why do I have .rpmnew file after an update?

I use yum to update my Fedora. After a huge update, I got many .rpmnew and .rpmsave files. I could understand if I had modified these files. But I'm sure that I didn't edit these files. What should I ...
8
votes
2answers
2k views

What's removing stuff from /var/run at reboots from a fedora machine?

I am running a FC18 machine on which I am testing a piece of software (smf-sav, a milter) keeping part of its working files under /var/run/smf-sav/. That directory keeps disappearing after reboots. ...
8
votes
3answers
8k views

p2v v2v v2p tool from open source? [closed]

we have centos, fedora, ubuntu server and desktop we are looking for good open source tool for p2v v2v v2p and we are not using vmware here only we use xen or kvm. Same of the server shifted to new ...
8
votes
5answers
3k views

Correctly setting the hostname - Fedora 20 on Amazon EC2

Context I have a Fedora 20 cloud image running on Amazon EC2 (henceforth called the "instance"). And I have some uncertainty about persistently setting its hostname. Goal In this case, let's say I ...
8
votes
1answer
18k views

firewalld vs iptables - when to use which [closed]

TL;DR On new CentOS server installs should I be using firewalld or just disable that and go back to using /etc/sysconfig/iptables ? firewalld and iptables serve similar purposes. Both do packet ...
7
votes
4answers
6k views

Why should I use CentOS instead of Fedora

I am a happy user of Fedora but most SCADA systems I know use CentOS. I am going to provide a SCADA solution in Linux. Should I convert to CentOS or stay with my friend Fedora?
7
votes
9answers
6k views

Is there any decent repositories for CentOS or Fedora?

I'm known as a hater of RPM/Yum based OS, just because i think their lacking of decent package repositories (at least for recent software). While in Debian/Ubuntu, there are a lot of good ...
7
votes
3answers
12k views

What is the relation between NetworkManager and network service in Fedora/RHEL/Centos?

Hi I am new to Fedora/Centos/RHEL. I am confused about NetworkManager and network service in these Linux OS. May I know what is the relation between NetworkManager and network service? If I am using ...
7
votes
4answers
15k views

Can I set up Fedora or Centos repos in RHEL6?

I have a RHEL6 box with no subscription to Red Hat Network. I want to install gcc using yum to resolve all the complex dependencies. Can I connect to Fedora or Centos repositories to install software? ...
7
votes
2answers
3k views

How to override the hostname that DHCP configures on a CentOS7 box in AWS? [duplicate]

The title nearly says it all. I have a VM in EC2 running CentOS 7. It uses DHCP, which seems to be a EC2 requirement. DHCP keeps overwriting the hostname on reboot, no matter what I try. I won't ...
7
votes
2answers
19k views

Fail to install Fedora 18 from flash drive (Warning: /dev/root does not exist) [closed]

I'm trying to install Fedora 18 on an HP DL 180 G6 with no luck so far. Please don't suggest installing/using Centos as we have a requirement to use Fedora 18. I have tried using two different USB ...
7
votes
2answers
5k views

How can I mirror a yum repository but download only the newest versions of each package?

I would like to mirror the following Yum/RPM repositories at http://yum.puppetlabs.com/ : http://yum.puppetlabs.com/el/6/products/ http://yum.puppetlabs.com/el/6/dependencies/ http://yum.puppetlabs....
6
votes
4answers
4k views

Force Linux servers to automatically try to get an IP address if they lose it

We use static DHCP leases for our Linux servers on our small business network. Recently something bad happened to the DHCP server and all the linux servers ended up losing their IP addresses since ...
6
votes
3answers
19k views

Systemd dependencies and boot order

I need to specify a boot order for processes to start. I have 389 Directory Server and Samba running on Fedora 18. How can I have the network services boot, then 389 DS, then Samba? Is there a GUI to ...
6
votes
4answers
6k views

Is there a way to list all configurable `alternatives` (symlinks for similar commands) on the system?

The alternatives command (package chkconfig) on RHEL/Fedora manages symlinks which link a generic name to one of the alternative implementations. For example, mta group of symlinks can be provided by ...
6
votes
4answers
6k views

Setting up SSL with 389 Directory Server for LDAP authentication

I've got 389 Directory Server running on RHEL 5 with groups, users, posix etc. RHEL clients are authenticating users with LDAP - no problems, everything works perfect, but passwords are sent in ...
6
votes
4answers
2k views

Record everything on command line centos /fedora/ ubuntu

we are 100% Linux user across the network and we do work round clock, what happens shift change next admin come to his shift on that time what all issues comes he get resolve the issues but they just ...
6
votes
1answer
2k views

How do I prevent yum from updating a particular RPM?

For certain reasons I have to keep a slightly older version of a particular RPM installed on my box (Fedora 11). The problem is that every time I do a package update yum (or one of its GUI equivalents)...
6
votes
2answers
5k views

Make kernel modules available that have been deactivated on Fedora

Edit: I turned Cristians answer into a script which does everything automatically: https://github.com/frans-fuerst/magic/blob/master/fedora-activate-can.sh I need some kernel modules which are ...
6
votes
5answers
15k views

Kickstart installation from USB — Kickstart location

After managing to get a Fedora ISO to rebuild successfully (for a USB stick) after adding a kickstart file (http://serverfault.com/questions/548405/), I now have an issue with locating the kickstart ...
6
votes
1answer
527 views

SELinux: cannot confine Firefox process to mozilla_t domain

My goal is to execute Firefox in the mozilla_t domain instead of unconfined_t. The machine runs Fedora 20 with SELinux in enforcing mode. Unfortunately, I can't seem to get this right. No matter ...
6
votes
5answers
4k views

Auto mounting samba windows share in Fedora Core 15

I have a server that runs centos 6.2 with a samba share. What i am trying to achieve is to have the samba share automatically mounted on my PC running Fedora 15. In /etc/fstab I have //192.168.1....
5
votes
8answers
3k views

What is the equivalent for “service servicename start” that Fedora/RHEL/CentOS uses for Debian/Ubuntu?

What is the equivalent for "service servicename start" that Fedora/RHEL/CentOS uses for Debian/Ubuntu? I've just read on some question here on serverfoault that using /etc/init.d/service is obsolete, ...
5
votes
7answers
11k views

tcpdump: out.pcap: Permission denied

[root@localhost ~]# cat /etc/issue Fedora release 17 (Beefy Miracle) Kernel \r on an \m (\l) [root@localhost ~]# uname -a Linux localhost.localdomain 3.6.10-2.fc17.i686 #1 SMP Tue Dec 11 18:33:15 UTC ...
5
votes
3answers
11k views

How to resize the disk of a Fedora guest VM in VMWare ESXi

How do I resize (specifically increase) the disk size of a Fedora guest VM running under VMWare ESXi 4.1? I have a Fedora 16 VM with an lvm2 formatted disk, and I've increased its disk size using the ...
5
votes
7answers
875 views

Bad byte in one RAM module / Block area of RAM from being used

I have four 512 MB RAM modules in one server. The fourth RAM is showing error for only one bit when I use memtest86+ to test the RAMs. Even when I swap the RAM in fourth slot with some other RAM I ...
5
votes
3answers
804 views

DTrace limited on Centos/Fedora

I wanted to work on a problem on a Centos 6 box. I ran dtrace and it failed. It doesn't accept -n or -l or -P or any command line options. It claims to ONLY accept -h, -G, -C, -I, -s, and -o. I ...
5
votes
2answers
7k views

block all but a few ips with firewalld

On a linux networked machine, i would like to restrict the set of addresses on the "public" zone (firewalld concept), that are allowed to reach it. So the end result would be no other machine can ...
5
votes
1answer
3k views

OpenSSH daemon ignores ServerKeyBits directive

I'm having an issue with my Fedora 19 x86_64 virtual machine. It seems to ignore my 4096-bit key setting. I've set the ServerKeyBits directive to 4096, stopped the sshd service, deleted all host keys ...