All Questions
72
questions
14
votes
4
answers
100k
views
vnc viewer error: unable connect to socket: Connection refused (111)
I installed tigervnc-server package in server.
[root@localhost ~]# rpm -qa tigervnc-server
tigervnc-server-1.1.0-5.el6.i686
Created a vnc user and created vncpasswd also for that user.
[root@...
- 4,073
12
votes
2
answers
27k
views
Convert file to PDF using LibreOffice under user apache (i.e. when using PHP)
I installed libreoffice-headless and can convert documents when logged on into the shell as a normal user.
[root@desktop ~]# yum install libreoffice-headless
[root@desktop ~]# yum install libreoffice-...
- 1,691
12
votes
3
answers
15k
views
Attempting to install tmux on CentOS 6.x fails with error: ‘EVBUFFER_EOL_LF’ undeclared
I tried compiling tmux using the following steps:
yum -y install ncurses-devel libevent-devel
wget http://downloads.sourceforge.net/tmux/tmux-1.9a.tar.gz
tar -xvzf tmux-1.9a.tar.gz
cd tmux-1.9a
./...
- 1,445
8
votes
2
answers
12k
views
How do you boot linux with networking disabled?
Is there some way to disable networking by passing a kernel option through grub? Prefereably I could only disable 2 interfaces, but disabling all networking would be okay also.
My use case is that I ...
- 1,820
8
votes
5
answers
17k
views
Writing a CPU/RAM usage log over a period of time to file on CentOS
I'm looking for an application or line of code that would let me observe a process, save the info in a number of variables, then put the gathered info on a file.
I've been trying with variations of ...
- 218
7
votes
5
answers
24k
views
How do I remotely view a Linux desktop from Windows XP?
I'm using Windows XP and need to remotely connect to a CentOS-5.X server.
I'm looking to visually, securely and with as small a footprint as possible manage a remote Linux system via an GUI. It's not ...
- 887
6
votes
4
answers
5k
views
Why does Dropbox use so much memory on Linux?
pmap shows that Dropbox uses nearly 200MB of memory (on Linux). When I run Dropbox on Windows, it only uses about 30MB of memory. What is the reason for that?
Also, why are there so many [ anon ] ...
- 2,299
6
votes
1
answer
5k
views
How to setup password-less ssh between two vagrant machines?
I have set up a enviroment of two machines in vagrant where I used the following CentOS image: http://developer.nrel.gov/downloads/vagrant-boxes/CentOS-6.4-x86_64-v20130427.box
Lets call the two ...
- 181
5
votes
1
answer
13k
views
What's the difference between "uname -r" and "uname -v"?
I am using CentOS 6.2. In the man page of uname (i.e., man uname), it says:
-r, --kernel-release
print the kernel release
-v, --kernel-version
print the kernel version
...
- 4,073
5
votes
3
answers
25k
views
Source Based Policy Routing & NAT (DNAT/SNAT) aka Multi WANs on CentOS 5
Originally posted at Unix and Linux but nobody was able to answer it, so m migrating the question here:
My question is regarding Source Based Policy Routing on CentOS 5 with 2 WANs plus a LAN (NAT) ...
- 111
4
votes
1
answer
1k
views
Not the same output format from `df` in different Linux distributions
In Ubuntu the output of this command
df --exclude={tmpfs,devtmpfs,squashfs,overlay} | sed -e /^Filesystem/d | awk '{print $6 " " $1 " " $3 " " $4 " " $5}'
is:
/...
- 153
4
votes
3
answers
22k
views
Google Chrome on a fresh CentOS 7.1 not starting up
I am having a bad time trying to run Chrome on my CentOS 7.1 server. I know, it does not have a screen, it's a server. But I installed GNOME anyway and using VNC I can see the screen on a remote ...
- 79
4
votes
4
answers
29k
views
How to make my default gateway permanent in CentOS? So that after a reboot it does not get lost
I have a CentOS running. It is important to have my CentOS available when I am remotely connected to a VPN router. I tried to add a default gateway to the VPN router, but after reboot it goes away. ...
- 1,685
4
votes
2
answers
437
views
Connecting a MIDI Controller to CentOS5
Edit: I'm trying a different tack at the problem, by using /dev/midi with C.
Hello all! I recently got a Akai MPD24 MIDI controller, as part of a piece of software I'm writing. I'm looking to use the ...
- 181
3
votes
1
answer
673
views
Linux: only allow outgoing connections to specific domains
I have a CentOS server and only want to allow outgoing connections to specific domains. (allowlist) My thought was to have a DNS proxy which adds the allowed ips (only ipv4 needed) to nftable named ...
- 73