BinaryMisfit's questions

I followed the Slicehost tutorial here and was able to get thin installed in init.d to be able to start at boot.

I also created the required configuration file. When running thin from the command line logged in as root using the command below it works perfectly.

thin start -C /etc/thin/:config:.yml

However, when running thin using service thin start I get the following from the log files:

>> Writing PID to tmp/pids/thin.3000.pid  
>> Changing process privilege to apache:apache  
>> Using rack adapter  
>> Exiting!  
/var/www/sites/<path>/vendor/bundle/ruby/1.9.1/gems/guard-1.6.2/lib/guard.rb:23:in `expand_path': couldn't find HOME environment -- expanding `~' (ArgumentError)

I suspect there is some environment configuration setting missing but have no idea what to look for.

Has anyone been able to get this working or have any suggestions on what I can do to get this working?

I have 3 CentOS 6.3 Virtual Servers that I manage. I have them all set-up and configured, but am notoriously bad with remembering to run yum update on them from time to time.

Is there anyway that I can have some notification of how many updates are available, if any, when logging into the terminal via SSH. Preferably only if there are updates.

I suspect I need to configure a command to run in .bash_profile however can't seem to find the correct command using Google.

I have a Windows 2008 R2 Server which is running headless. It's a full installation, without a monitor, keyboard or mouse. For the last few days the machine has suddenly stopped responding at random times. It can still be pinged, however it's inaccessible via remote desktop, and none of the web application running on it responds. The only solution so far is to reboot the machine.

It's running a RAID1 mirror across 2 1.5TB drives, and I suspect one of the drives is failing, or at the very least has a bad sector that is causing the freeze. To confirm, I would like to run chkdsk on the drive, and was wondering if anyone knows an easy way to do this without having to connect a monitor, keyboard and mouse to the machine?

Alternatively, what else should I be looking at that could be causing this problem?

We are using a SAN for our datastorage. I recently got the SAN connected to a CentOS 5.3 server by using the EMC PowerPath software along with the Navisphere Agent running on CentOS. However I have now recieved the final production server and need to set this all up again. Getting the PowerPath to work is a huge problem, and I am trying to determine what the best course of action would be.

• Should I use the built in multipathd that is already on CentOS?
• If I do what will probably not work?
• Is setting up multipath any harder then setting up PowerPath?

Notes

• The server needs to mount the SAN as a LVM volume at boot
• The server boots off it's own internal drives, with only the software and data on the SAN
• CentOS 5.3 is loaded and up to date
• The server has 2 network cards connected to the SAN, Path A and B setup in failover. I did not set this up, it is done by the networks team. I am only dealing with the OS side of things

Additional Information

dmesg | grep ql

ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
PCI: If a device doesn't work, try "pci=routeirq".  If it helps, post a report
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
io scheduler cfq registered (default)
serial8250: ttyS0 at I/O 0x3f8 (irq = 0) is a 16550A
serial8250: ttyS1 at I/O 0x2f8 (irq = 0) is a 16550A
00:05: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
00:06: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
ehci_hcd 0000:00:1a.7: irq 50, io mem 0xdf0ff800
ehci_hcd 0000:00:1d.7: irq 58, io mem 0xdf0ffc00
uhci_hcd 0000:00:1a.0: irq 66, io base 0x0000cc40
uhci_hcd 0000:00:1a.1: irq 74, io base 0x0000cc60
uhci_hcd 0000:00:1d.0: irq 58, io base 0x0000cc80
uhci_hcd 0000:00:1d.1: irq 82, io base 0x0000cca0
ata1: SATA max UDMA/133 cmd 0xcc10 ctl 0xcc08 bmdma 0xcc20 irq 98
ata2: SATA max UDMA/133 cmd 0xcc18 ctl 0xcc0c bmdma 0xcc28 irq 98
qla2xxx 0000:04:00.0: Found an ISP2532, irq 106, iobase 0xffffc2000000e000
qla2xxx 0000:04:00.0: Configuring PCI space...
qla2xxx 0000:04:00.0: Configure NVRAM parameters...
qla2xxx 0000:04:00.0: Verifying loaded RISC code...
qla2xxx 0000:04:00.0: Allocated (64 KB) for EFT...
qla2xxx 0000:04:00.0: Allocated (1414 KB) for firmware dump...
scsi3 : qla2xxx
qla2xxx 0000:04:00.0:
qla2xxx 0000:05:00.0: Found an ISP2532, irq 114, iobase 0xffffc20000022000
qla2xxx 0000:05:00.0: Configuring PCI space...
qla2xxx 0000:05:00.0: Configure NVRAM parameters...
qla2xxx 0000:05:00.0: Verifying loaded RISC code...
qla2xxx 0000:05:00.0: Allocated (64 KB) for EFT...
qla2xxx 0000:05:00.0: Allocated (1414 KB) for firmware dump...
scsi4 : qla2xxx
qla2xxx 0000:05:00.0:
qla2xxx 0000:04:00.0: LIP reset occured (f8f7).
qla2xxx 0000:04:00.0: LIP occured (f8f7).
qla2xxx 0000:04:00.0: LIP reset occured (f700).
qla2xxx 0000:04:00.0: LOOP UP detected (4 Gbps).
qla2xxx 0000:05:00.0: LIP reset occured (f8f7).
qla2xxx 0000:05:00.0: LIP occured (f8f7).
qla2xxx 0000:05:00.0: LIP reset occured (f700).
qla2xxx 0000:05:00.0: LOOP UP detected (4 Gbps).
SELinux: initialized (dev mqueue, type mqueue), uses transition SIDs

How can I stop CentOS 5.3 from trying to mount my CD-ROM drives during boot?

What will it affect if I disable it? Will my USB Drives still automount?

Additional Information

There is no entries in the fstab or mtab to automount the drives. It is the first place I checked. Also a grep of the etc and underlying directories for /media/cdrom did not bring up anything remotely useful in this regard.

The machine is not running a GUI, no X-Windows installed. It also doesn't have autofs installed.

CentOS is trying to mount both my internal and external drives. There is no discs in them so these fail, however I want to stop the process altogether.

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 remotely using SSH.

My thoughts around this was to install only what is required to get the machine working and then use yum to install any of the services I do need.

Any suggestions about which packages to select during initial install to ensure the installation is as streamlined and compact as possible?

PS: I don't want to change from Fedora since I have ext4 partitions and none of the other distributions I have access to support these out of the box. Also I know how to configure it quite well at this point.

A while ago I installed my first Linux server using Fedora 10. I then upgraded to Fedora 11 and realized that I never use X-Windows on the machine, and during each update downloading a huge amount of files I don't need since everything on the machine is done remotely using ssh.

Using yum or any other tool, how can I completely remove Gnome and the X-Windows subsystem from this machine? Is the only alternative to do a complete re-install and not selecting X-Windows?

Based on this question can the following be done:

 - Router with DHCP connected to NIC A on Box 1
 - Machine B connected to NIC B on Box 1

I need Machine B to get a DHCP IP address from the Router on NIC A. Currently the setup and configuration is as follows:

 - NIC A DHCP Assigned IP: 10.0.x.x (255.255.255.224)
 - NIC B Static IP: 10.1.x.x (255.255.255.252)

I have ipv4_forwarding on however I can't assign a static IP to the Machine B. What do I need to do to get all traffic from NIC A to flow through NIC B. Or more specifically how can I get Machine B to get an IP address from the DHCP on the router.

• Do I need to setup IPTables? If so where do I start?
• Do I need to setup a route on the linux box? How?
• It can't be done?

To Clarify

This box is NOT the router. There is already a router in place. This is a linux box used for Samba Shares and Virtual Machines. There is however some machines that can't be connect to the main switch, however they can be connected through another hub to this machine.

In Short This machine is sitting in the middle.

Running Fedora 10 I have the following scenario.

NIC A - Running on 10.11.0.1. DHCP Assigned.  
NIC B - No IP Specified Yet.

The machines connected to NIC B needs to transport traffic between NIC B and NIC A, ie. see everything NIC A can. The traffic can flow freely between these networks since there is already an Firewall in place on a different machine.

I realize this is a routing issue but have no idea where to start.

• Do I assign an static IP to NIC B?
• Do I use iptables to create a rule to do this?
• Do I create a static route and how?

How would I set this up correctly?

I am trying to install the latest Firebird SS package on Fedora Core 10. I successfully upgraded to the latest FC kernel version (2.6.27.29-170) using Yum, and during the process it upgraded Firebird to version 2.1. However when starting the Firebird service I get the following error message:

Starting Firebird server [default] /usr/lib64/firebird/bin/fbmgr.bin: error while loading shared libraries: libfbclient.so.2: cannot open shared object file: No such file or directory [FAILED]

I have searched for the relevant library and can't find it anywhere on the system.

Firebird used to work fine on the system until the upgrade, and I am unsure as to how to downgrade to the older version or even get the current version working. Any advice would be appreciated.

I have also done a Yum remove, deleted all Firebird directories and files I could find and reinstalled using Yum with no success. Google has also not been very helpful in this regard.