Linux Forums - Linux Newbie

C programming with Live CD - Help

firefdr — Fri, 20 Nov 2009 14:16:47 GMT

Hi

Im quite new to Linux (used Ubuntu and Suse some time ago but havent touched them in like 3 years) and I need to do some programming in Unix. I decided to use Linux since its quite easier for C programming (from what I remember).

I also wanna use a Live CD instead of installing since I dont have much HD space and I also have nicely tuned Windows installation that I dont want to mess with (dont want to risk having to format it and do all over again >_>).

1- Will the Live CD be ok for that? Will I be able to install the compilers I need, the libraries I need, save files, compile them, test them, install some programs and all that even if Linux is not installed? (Never used a Live CD before... appart from playing with some for a little).

2- I will have to do a "C-language socket-based client-server program, working under Cygwin and Solaris/SPARC 2.8". Will I be able to code that on a Linux environment? (Also never touched Cygwin or Solaris...)

3- Which distro should I use? I want something easy and straight to the point. Something I wont need to mess with. Gnome/KDE is unimportant but I would like a nice text editor. If Ubuntu and Suse are good for my needs I could stick to them since Im pretty familiar with (which one of the two though?).

I think thats all for now.

Thanks

Webcam menu disabled on acer aspire messenger

mathew_m — Fri, 20 Nov 2009 09:41:25 GMT

I got a new Acer Aspire netbook yesterday. When I tried to enable webcam through the messenger(which comes with default installation), the webcam-menu items are appeared to be disabled.

But when I clicked on the Webcam icon directly from the �FUN� directory, i got the camera working and I took few snaps also. I am not sure why cant I use the camera from chat window ?

I am new to Linux and any help appreciated..

Thank you very much

GParted error while copying and pasting

NewinLinux — Fri, 20 Nov 2009 05:23:29 GMT

Hi Friends,
I am in need of your help again. I was trying to take the backup of an Extended Partition in my pen drive using GParted. I used the following guide to do this:

GPARTED DOCUMENTATION - COPYING

But When I pasted in the unused space of my pendrive, it told that "the Destination is smaller in size than the source". My pendrive is of 4 GB and I created an unused space of 1 GB for taking the backup of that Extended Partition which is only 533 MB.

How is it possible that my destination is smaller than the source? Please tell what is wrong in this.

Proftpd can't list directory with "[" character HELP!

Cr0n_J0b — Thu, 19 Nov 2009 23:17:32 GMT

I solved this. It's an issue with the way Proftpd handles what they call glob characters...things like & and * and evidentally [ and ]. Basically they are not allowed for listing directories or they throw an error' I fixed it by adding the following to my config file. I tells the server not to advertise the MLSD listing service so the client will negotiate with the LIST command instead...it works for me with filezilla...the only one i've tested so far.

This has been submitted as a bug. I'm currently on 1.3.2 the stock version from unbuntu 9.10.

FactsAdvertise off

Hi all,

I'm pretty new to using proftpd. I've had a devil of a time getting it running...and now I have some further issues.

I'm on a stock kernel for Ubuntu 9.10.

I setup with Gadmin using the vanilla configuations.

My first issue is that I can't start the server on port 21. It says that the port is busy, though I can't find anything using port 21.

I got around this by switching to port 2121, but now i've found that users can't get directly listing for any directory that includes the "[" character...I've tried messing with AllowFilter and DenyFilter, but they just hosed the entire server when i turned them on.

any help would be appreciated. here is my config file.

+++++++++++++++++++++++++++++++++++++++++++++
ServerType standalone
#AllowFilter [^*/A-Za-z0-9_.-]
DefaultServer on
Umask 022
ServerName "my.ftp.server "
ServerIdent on "FTP Server"
ServerAdmin email@example.org
IdentLookups off
UseReverseDNS off
Port 2121
PassivePorts 49152 65534
#MasqueradeAddress None
TimesGMT off
MaxInstances 30
MaxLoginAttempts 3
TimeoutLogin 300
TimeoutNoTransfer 120
TimeoutIdle 120
DisplayLogin welcome.msg
DisplayChdir .message
User nobody
Group nobody
DirFakeUser off nobody
DirFakeGroup off nobody
DefaultTransferMode binary
AllowForeignAddress off
AllowRetrieveRestart on
AllowStoreRestart on
DeleteAbortedStores off
TransferRate RETR 220
TransferRate STOR 250
TransferRate STOU 250
TransferRate APPE 250
SystemLog /var/log/secure
RequireValidShell off

TLSEngine off
TLSRequired off
TLSVerifyClient off
TLSProtocol SSLv23
TLSLog /var/log/proftpd_tls.log
TLSRSACertificateFile /etc/gadmin-proftpd/certs/cert.pem
TLSRSACertificateKeyFile /etc/gadmin-proftpd/certs/key.pem
TLSCACertificateFile /etc/gadmin-proftpd/certs/cacert.pem
TLSRenegotiate required off

Ratios off
SaveRatios off
RatioFile "/restricted/proftpd_ratios"
RatioTempFile "/restricted/proftpd_ratios_temp"
CwdRatioMsg "Please upload first!"
FileRatioErrMsg "FileRatio limit exceeded, upload something first..."
ByteRatioErrMsg "ByteRatio limit exceeded, upload something first..."
LeechRatioMsg "Your ratio is unlimited."

AllowUser chris
AllowUser carl
DenyALL

User user1
Group friends
AnonRequirePassword on
MaxClients 5 "The server is full, hosting %m users"
DisplayLogin welcome.msg

Allow from all
Deny from all

AllowOverwrite off
AllowOverwrite on

AllowAll

DenyAll

User user2
Group friends
AnonRequirePassword on
MaxClients 5 "The server is full, hosting %m users"
DisplayLogin welcome.msg

Allow from all
Deny from all

AllowOverwrite on

AllowAll

DenyAll

++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++
thanks

Too many hits for LF_DIRWATCH

mirror51 — Thu, 19 Nov 2009 23:01:16 GMT

I got this email message from root.

What does it means i have no idea. is it good or bad

[SOLVED] cd with ISO will not run

nichos — Thu, 19 Nov 2009 22:03:00 GMT

I insert in winME Laptop a cd wth a linux ISO but will not start the istall.

Is there anything I can do to make the cd run & install ubuntu-lite?

thanx ...nick

Which distro?

sk565 — Thu, 19 Nov 2009 20:52:56 GMT

Ok people, I use dell cpx latitude which did have xp on it but I recently switched to linux freespire. I am a newbie in the world of command lines and shells. I just am posting this to get your opinon on which distro is best. And also is it possible to set up directx on linux. I have epsxe for ps1 games but opengl sucks on my systems, worked good with xp but now that im am on linux its alot slower. Id like someone to teach me also about linux but anyway, can anyone help

console sharing/eevesdropping

solid — Thu, 19 Nov 2009 03:00:33 GMT

I have a need to watch another users shell session. Is there way I can watch another users console as they are using it? Vnc has basically does this for desktops. I am ok with doing this by having the target of the eevesdropping invoke a command or something prior to it but I just need to know how to do it.

[SOLVED] Linux+ Windows 7 OS

sheprd — Wed, 18 Nov 2009 21:58:53 GMT

I downloaded Fedora 12 and haven't tried to install it. Can I install it while I have the Windows 7 OS? Also the info said dpwnload Linux 12 desktop and try it before installing it. How do I do this? You may not guess it but I'm a total novice concerning Linux. Don't know jack about it but would like to learn and try it. Thanks for any info of any kind.

un-installing

branoo — Wed, 18 Nov 2009 13:47:13 GMT

I am running Linux mint 7 and the other day i went along to the official Songbird Media Player site and downloaded the latest version of Songbird 1.2. It came in the form of a tar.gz file. But after a little help i managed to install it and it was working great.

But i can't find an entry for it in the Synaptic Package Manager or the Software Manager. It was not even listed in the main menu.

So, could someone tell me how i might go about un-installing this software please.

Big thanks

backup all tables in mysql

mirror51 — Wed, 18 Nov 2009 04:36:38 GMT

hi ,

I am trying for so many months but could not found the answer

I want to write the shell script which

1)Finds all the databases in mysql
2)create the folder who ever is the creater of that database or owner of that database . I think the databse starts with username_ so i think i have to split the database name to get folders name . How to do that?
2)backs up the databases belonging to that user

NFS 2 different mounts go to same filesystem!!

damartin — Tue, 17 Nov 2009 13:49:06 GMT

I have fc10 2.6.27 with two USB 1.5Tb external drives on FAT32. They are mounted as /mnt/v1 and /mnt/v2 using the LABEL= to make sure they mount up correctly each boot (random device names depending on the order i switched them on). I have exported /mnt/v1 and /mnt/v2 over NFS.

When I mount these from another machine I get the first of the two mount points (as appears in /etc/exportfs) duplicated on both mounts. eg mount lister64:/mnt/v1 /data/v1 && mount lister64:/mnt/v2 /data/v2 gives the contents of /mnt/v1 in both /data/v1 and /data/v2.

I assumed that this is because the fsid is the same (0??) for both mount points - is that assumption correct? If so - I went onto adding the option fsid=1 and fsid=2 into the /etc/exportfs file and re-exporting.

With fsid set to anything other then 0 I am unable to mount at all - and syslogs shows mountd[xxxx]: refused mount request from xx.xx.xx.xx for /mnt/v1 (/): not exported.

What am I doing wrong?? I have spent days on this - I hope it's me being dumb!. Any hints appreciated!

/etc/exportfs:

/mnt/v1 192.168.8.*(fsid=1,ro,insecure)
/mnt/v2 192.168.8.*(fsid=2,ro,insecure)

/etc/fstab:

LABEL=V1 /mnt/v1 vfat defaults 0 0
LABEL=V2 /mnt/v2 vfat defaults 0 0

Loading Usb 2.0 Driver With Syslinux?

joex1 — Tue, 17 Nov 2009 08:15:02 GMT

Hello,

I am trying to enable USB 2.0 speeds from a pendrive and i also want to enable USB 1.1(at least) where the bios doesn't support booting from a USB drive.

I found a dos USB 2.0 driver, it is a single exe, and it says to load to such as, DEVICE=DUSE.EXE
so can i add this line to a syslinux.cfg and obviously add the DUSE.EXE to the pendrive root?

Or can i not mix linux syslinux and dos commands?

Is there a way to load the USB 2.0 from a linux driver instead if not.

So if the bios supports booting from USB then i assume it will default to USB 1.1 so therefore i can load the USB 2.0 driver from the pendrive.

If the bios does not support booting from USB then i would have to load the USB drivers from a CD first then i should be able to boot from the pendrive, anyone done this?

thanks.

Hide Software from Alt+Tab

jmadero — Mon, 16 Nov 2009 22:42:38 GMT

Is there a way to do this? I've tried devilspie but I'm either missing the command or it's not doing what I want it to. I have tomboy and don't want my notes showing up every time I alt+tab....becomes almost disfunctional for my computer if I have a few notes open....

How to update Red Hat 9 kernel 2.4 to 2.6

mirzausman — Mon, 16 Nov 2009 10:51:48 GMT

Hi,
I have installed Red Hat 9 for first time in life. So I don't know what is it.
I have problem with drivers but support says I need kernel 2.6.

I don't know the commands and steps
Please tell me each step what and how to do. I know nothing about Linux.