Questions tagged [linux]

Linux is the generic term for a UNIX-like open source operating system based on the Linux kernel.

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Good Linux podcasts/links for beginners [closed]

There are quite a few out there, thats why I am asking for some recommendations. I am looking for some good linux podcasts/websites that are for beginners making the switch to using Linux as their ...
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4answers
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Problematic Wireless connection manager in Kubuntu 9.04

I've recently upgraded my Kubuntu installation to 9.04 and somehow the wireless manager is not working any more. I believe it is the official bug mentioned in this article. Have any of you encountered ...
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2answers
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How can I use symbolic signals in an at job?

In this answer on SO, I gave an example that should have used a -SIGCONT signal in a job submitted to at. However, I found that the process that I had stopped with -SIGSTOP did not continue. When I ...
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4answers
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Can you explain exporting and then importing PostgreSQL using phpPgAdmin? (And what's with permissions?)

Bounty Edit: I've left the original question but would like a good answer on the whole permissions debacle that Postgres seems to bath in. 'Importing & exporting clients db's: A field guide' I ...
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3answers
585 views

Can I use RSync to reliably backup a Vista computer to a Linux server?

I've got a computer running Vista x64 with a standard user account, but I can elevate to administrator to install a service or RSync software. I want to backup by data drive (d:) to a server running ...
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4answers
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Is there an open source email client that will work with Exchange 2007?

Recently I've been playing around with Ubuntu 9.04 on one of my work systems. The only real bump in the road that keeps it from being being used as my main workstation is that I cannot find a ...
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4answers
575 views

What “FreeBSD for Linux Geeks” Guides Exist? [closed]

I have been using linux for quite some time now, usually Ubuntu these days, but have used Debian and Gentoo too, and have been meaning to get started with FreeBSD for a long time. While both are very ...
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9answers
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How can I find out what hard disks are attached to a Linux box?

Here's an easy question for you guys: How do I find out what hard drives are attached to a linux box? I'm hoping for a single command that can give me a nice list of all ata/scsi/etc drives. I've ...
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7answers
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How do you manage your Linux iptables configuration on a machine acting as a router?

I have a couple Linux machines that act as routers/firewalls for my networks and I have a script that runs all the iptables commands to set my rules. This seems to me like a really silly way to do it ...
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10answers
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Multiple *NIX Accounts with Identical UID

I am curious whether there is a standard expected behavior and whether it is considered bad practice when creating more than one account on Linux/Unix that have the same UID. I've done some testing on ...
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1answer
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Lightest weight IMAP/POP3 server [closed]

I'm looking for an extremely lightweight mail server to handle IMAP/POP3 connections. Maildir backend preferably, with multiple authentication modes (SQL, LDAP, etc). Any suggestions?
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14answers
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What are some informative and useful shell prompts? (Bash, csh, ksh, etc.)

One of my favorite Mac OS X Terminal tips involves adding the last running process into the terminal title using the following code in your .bashrc. trap 'printf "\033]0; `history 1 | cut -...
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1answer
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Red Hat Satellite vs. Ubuntu Landscape

We have some experience using Red Hat Satellite in an environment with ~120 servers. Now we're looking into deploying Ubuntu in parallel for the further growth. How does Landscape compare to ...
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4answers
1k views

self hosted web based pop/imap email clients?

I host my own site from home over ssl as a learning experience and to run some services that wouldn't be easy to run on anything other then a VPS such as bitlbee. I'd like to have a web based email ...
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4answers
2k views

Tools for Email Tracing

Our mail system consists of 2 frontend postfix mailservers, 2 backend MS Exchange servers, and 2 additional postfix servers hosting pop3 mailboxes and aliases. Occasionally I am required to trace an ...
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3answers
4k views

Linux email server for sending email from multiple IP addresses

I'm trying to setup an email server so it has the capability to send email from multiple IP addresses, so our marketing system can send email from multiple domains, while keeping the reverse DNS ...
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5answers
1k views

File shares for Mac users

The main file shares on our network are currently hosted by old Apple XServes. I had planned to replace some of these with Windows shares as I have better hardware available but have been told this ...
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4answers
566 views

MySQL Clustering

I run a mysql server that hosts around 50Gb of data (primarily for around 250 websites), and am wondering what my options are for setting up a redundant MySQL cluster? The primary purpose would be ...
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9answers
6k views

What is the best modular customizable linux distro?

I need a linux distribution which is modular and configurable. For instance I need a kernel with special touch screen support. Other than that there are only a few apps which should be installed. ...
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2answers
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VNC via SSH with a single command

I have a VNC server (x11vnc) configured to allow me to log into the machine at the local display (:0) via SSH tunnel, following the instructions here. My question: is there a way to create the tunnel ...
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2answers
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Damaged /vmlinuz and /initrd.img symbolic links after Kernel uninstall

OS: Ubuntu 8.04 LTS Server Edition We just rolled back an kernel update using the following command: sudo apt-get remove linux-image-2.6.24-24-server The uninstallation was successful, but it had ...
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9answers
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For Intel Core 2 Duo, should I upgrade my x32 with x64 Linux? [closed]

I understand that the Core 2 Duo is a 64-bit processor, while Core Duo is a 32-bit processor. Let me know if my understanding is wrong. My Linux server, with the Core 2 Duo E8400, is currently ...
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2answers
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How can I determine the memory used by a forked process (Linux)?

Following on from this question. Debian, if that matters. I understand that some memory is shared between forked processes. How then can I determine how much memory is used by a process/set of ...
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10answers
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Which linux version to install: i386 or x64?

Talking about ease of maintanence / software support does it matter what version of linux i386 or x64 version is installed? Server obviously is 64 bit however i wonder if living with 64bit OS would ...
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5answers
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How do I clone an lvm ext3 partition to a smaller drive?

I have an lvm ext3 partition that is larger than the drive I would like to clone it onto, but is nowhere close to full, so all of the data, itself, would fit. What would be the best way to clone this ...
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4answers
374 views

Upgrading a Linux software RAID5

My home Linux server has a four drive software RAID 5, where each SATA drive has two partitions, named sd[abcd][12]. /dev/md1 is built up from sd[abcd]1, /dev/md2 is built up from sd[abcd]2. Each ...
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6answers
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Anti-Rootkit programs

What program do you use for detecting Rootkits? How do you know what to trust?
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2answers
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examples of kickstart files for CentOS 5.3

I want to install CentOS as a server os using kickstart. I know normally you can install a system and get a copy of the kickstart file with the installation options you selected at install time. I'm ...
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7answers
17k views

Is it possible to convert a Linux box to LVM after the fact?

My Linux server uses LVM because I replace the machine a year ago and installed from scratch. LVM has been a life saver and I love its flexibility. My Linux laptop, however, was last fully installed ...
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2answers
995 views

Running a process with both low cpu and I/O priority on rhel4

I've know about running a process under higher & lower priorities for some time, but with different I/O priorities, well that is news to me. My googles have returned information on tools like ...
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3answers
1k views

lvm+ext3 vs ext3 recovery

I would like to hear from people who have personal experience recovering crashed systems or data from crashed drives using lvm+ext3 and ext3. Which option is harder to recover from backup or to ...
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1answer
475 views

Multiple screen sessions with different layouts: is it possible?

The title pretty much says it all, but here is a short additional example: What I'd like: Multiple screen windows Multiple "contexts": for example a "resources" context, a "compiling" context, etc. ...
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5answers
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What are the gotchas of moving an SVN server/repository from Linux to Windows?

We have a server running Fedora 7 that we use as our SVN repository server. New IT policies where I work are mandating that we to a Windows box if we want to allow our server to be on the network. ...
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3answers
146 views

Best practices recovering from a failed UNIX package upgrade?

When upgrading or installing a package through a package manager like Aptitude, what do you do to ensure everything works afterwards? If the package manager would break something after running, do you ...
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8answers
17k views

What tool do you recommend to track changes on a Linux/Unix server

I manage several Linux servers for clients in several roles like email, caching, web serving, filtering, firewalling/routing, and so on. Since I don't own these computers and just provide remote ...
3
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3answers
851 views

Reverse proxy for HTTP acceleration

I provide hosting facilities for a high traffic website that will receive a spike in traffic in the next 2 months. In order to allow more it to perform better, I want to prepare myself and put a ...
141
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39answers
126k views

What useful things can one add to one's .bashrc? [closed]

Is there anything that you can't live without and will make my life SO much easier? Here are some that I use ('diskspace' & 'folders' are particularly handy). # some more ls aliases alias ll='ls -...
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12answers
99k views

What are useful .screenrc settings?

Basically like some of my own that I've posted below. I'm looking for added functionality to the programme 'screen'. At the very least have a look at the last line for a fantastic 'menu bar' at the ...
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1answer
1k views

Is Wine stable enough for production?

I have a open relationship with Linux, i use it on and off and i just got into the latest ubuntu and got a change to try out wine and it seemed to take any windows app and make it like i was actually ...
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3answers
358 views

What should be done to share a /home partition between two Linux installs on the same computer?

If I wanted to run different releases (stable, development) of the same distribution on a single computer, what do I need to configure to ensure they can share a /home partition between them?
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1answer
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Expiring Inactive User Accounts

I want to have some method of determining which user accounts have remained unused for a certain period of time, lock the accounts, and then after a further period, delete the accounts (notifying the ...
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2answers
5k views

Is there a good graphical or web-based md status or admin tool?

I've got a little embedded box acting as my NAS. It's running Debian (and yes, I know about FreeNAS and openFiler). I've got a pair of 1TB drives doing RAID1. mdadm is fine for me, but others in ...
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2answers
3k views

Port forwarding with iptables and dhcpd

The setup: I have a Linux (Gentoo, if that makes a difference) box that serves as a gateway for the whole apartment. This box does its NAT-magic with iptables and dhcpd. The problem: I have a certain ...
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2answers
4k views

Problem connecting to a Samba server with share mode security

I'm setting up a Samba server on Ubuntu 9.04 Server Edition. What I'm trying to do is have a share that is readable by everyone, and writable by a select few. I am able to login from my computer ...
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5answers
1k views

How to troubleshoot hanging linux server

I have several Ubuntu Server 8.04 machines at a remote location. Every couple of months or so, one of them would stop responding and need to be power cycled. From looking at my log files it seems that ...
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6answers
6k views

Is there a Linux equivalent of CPU-z?

I need to inventory the hardware on some Linux clients I recently "inherited". In the past, on Windows, I've used the excellent CPU-z to generate the hardware inventory. Is there a Linux equivalent?
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4answers
2k views

Linux User Synchronization [closed]

What would you recommend as a way to manage users in a small Linux network, so that users only need to be created on one machine with them synchronized automatically on the others. Some are laptops ...
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2answers
1k views

Low memory application priority

I'm running Debian on a machine that has limited memory and no option to add swap space. The machine serves as a web and database server. The problem I'm seeing is that when multiple web requests come ...
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8answers
1k views

S3 Interfaces for Backup, etc [closed]

Since none of the S3 "file systems" are compatible right now, what s3 gateway tool do you recommend for mounting a remote S3 bucket for backups? I've been using S3FS, but I've heard a lot of people ...
9
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6answers
15k views

Which free open source CPanel and WHM alternatives do you recommend/use? [closed]

I have been using webmin for some time now, however I miss the elegance and ease of WHM/CPanel combo I've had on shared hosting (and later dedicated hosting) platform. Looking around the web, all I ...