I've supposedly set APF firewall to start at boot time, by doing something like:
chkconfig --levels 2345 apf on
However i have my reservations to weather it is actually starting, its set to block port 80, after boot if i try and access it, the connection will get refused straight away, however if i go and manually start APF then try and access again, it will take a while, like its ignoring the connection attempt (which is good).
I'm trying to put together a new 1U rackmount server that I'm intending to colocate (my first server of my own). Here are the details:
11-152-087 CHASSIS SUPERMICRO|CSE-512L-260B R 13-182-120 SERVER_MB SUPERMICRO|MBD-PDSML-LN2+ 22-144-417 HD 250G|WD 7K 8M SATA2 WD2500JS 19-115-029 CPU INTEL|C2D E6750 2.66G 65N 4M R 20-134-337 MEM 1Gx2|KST KVR667D2E5K2/2G R
The stock CPU fan is obviously too big to sit in a 1U rackmount chassis, but I've got the top off and was just trying to boot up with the OEM fan to make certain everything worked (forgot to order a low-profile fan and heatsink--they're on the way).
Well, I put everything together, and it won't boot. Upon power up, there is nothing sent to the VGA port, and after a second or two, there is a hi-low alarm sound that does not stop that seems to imply the system is overheating (the MB and chassis manuals don't mention this alarm anywhere, but the read "temperature" light on the front is red). The CPU fan runs as well as the case fan, and even if I hold a huge high-velocity home fan over it, it still won't send any signal to the VGA monitor or POST.
I've checked that the power connections are good, the fans are seated properly, the memory contact is good, etc., and all I get is this hi-low chime every time I try to boot up. I think it's either a bad MB or CPU, since I can't imagine that the CPU is overheating with the heat sink and CPU fan.
Perhaps I've screwed something up, but the next issue I have is trying to figure out what could be causing the problem so I know what to return or replace. Is it the CPU? MB? RAM? Power unit? How can I test any of these without buying another set and possibly frying those?
I figured maybe some of you might have some ideas. I've built several computers over the years, but this one has me completely stymied.
This is probably the wrong location for this thread but I am unsure which section it is best located at.
I have 2 hard drives - 1 has XP pro installed (master drive) on it and the other is blank and set to slave. On the blank one i intedn to install Red Hat linux.
How is the best way to create a dual boot with these machines if each hard drive has one O/S dedicated to it.
I'm not sure exactly how to phrase the question. But, I'm researching how to PXE boot a server without having a DHCP/PXE server in each vlan.
Scenario: Datacenter with dozens of servers. 1 VLAN per server. Cisco switches and routers. Each server has a serial console available for remote management (OS and BIOS are configured for serial console). If an admin wants to re-install OS, they should be able to reboot the server and tell the BIOS to initiate a PXE boot request. A central install server is available to provide the DHCP and PXE boot images.
Has anyone tried this? I have been reading about the 'ip helper-address' for Cisco to relay DHCP requests. Interested in hearing about real-world setups. Or is there a better way to accomplish remote OS installs?
We cannot figure out why our dedicated server will not boot to the correct kernel. I've removed all other options from grub.conf but it's still booting to the default CentOS setup.
grub.conf:
Code: # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You do not have a /boot partition. This means that # all kernel and initrd paths are relative to /, eg. # root (hd0,0) # kernel /boot/vmlinuz-version ro root=/dev/mapper/ddf1_4c53492020202020808627c300000000378494a900000a28p1 # initrd /boot/initrd-version.img #boot=/dev/mapper/ddf1_4c53492020202020808627c300000000378494a900000a28 default=0 timeout=5 splashimage=(hd0,0)/boot/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.18-028stab062.3) root (hd0,0) kernel /boot/vmlinux-2.6.18-028stab062.3 ro root=LABEL=/ initrd /boot/initrd-2.6.18-028stab062.3.img
I've got Centos 4 and I'm wondering what's the best way to cleanup my /boot partition?
Tried to do a yum update tonight and it included kernel, amongst other updates that belonged there so it stopped. I've googled around for commands to run and whatnot, but no go... or I just can't find it... if I had to clean it up I have an idea already about what to do, but I want to ask for advice first to see if there's an easier way.
on a RHE 3 system I installed a new Kernel. I did update lilo.conf and grub.conf but they are still booting an old kernel: 2.4.21-27.ELsmp. Please have a look at my files below and if you have any idea why please let me know.
Code: default=0 timeout=10 splashimage=(hd0,0)/grub/splash.xpm.gz title Red Hat Enterprise Linux ES (2.4.21-53.ELsmp) root (hd0,0) kernel /vmlinuz-2.4.21-53.ELsmp ro root=/dev/hda3 initrd /initrd-2.4.21-53.ELsmp.img title Red Hat Enterprise Linux ES (2.4.21-47.ELsmp) root (hd0,0) kernel /vmlinuz-2.4.21-47.ELsmp ro root=/dev/hda3 initrd /initrd-2.4.21-47.ELsmp.img title Red Hat Enterprise Linux ES (2.4.21-47.EL) root (hd0,0) kernel /vmlinuz-2.4.21-47.EL ro root=/dev/hda3 initrd /initrd-2.4.21-47.EL.img title Red Hat Enterprise Linux ES (2.4.21-27.ELsmp) root (hd0,0) kernel /vmlinuz-2.4.21-27.ELsmp ro root=LABEL=/ initrd /initrd-2.4.21-27.ELsmp.img title Red Hat Enterprise Linux ES-up (2.4.21-27.EL) root (hd0,0) kernel /vmlinuz-2.4.21-27.EL ro root=LABEL=/ initrd /initrd-2.4.21-27.EL.img
am running CentOs with whm/cpanel and am whenever i reboot my server all sites that required mysql show erros ( can't connect ) it resolves by manually in the web host manager restarting mysql.
I have an old server with only IDE and SCSI connectors on the mobo.
However, I have only SATA drives and no IDE available. I consider to buy an entry level PCI SATA adapter card. What do you think ? Can I install and boot Linux directly from it?
Starting Tomcat server Output from "/sbin/rc3.d/S998Tomcat start": ---------------------------- Using CATALINA_BASE: /opt/mediation/Tomcat5.5 Using CATALINA_HOME: /opt/mediation/Tomcat5.5 Using CATALINA_TMPDIR: /opt/mediation/Tomcat5.5/temp Using JRE_HOME: /opt/mediation/java/jre15_15002 /opt/mediation/Tomcat5.5/bin/catalina.sh[233]: touch: not found. ----------------------------
If Tomcat is manually stopped and restarted, it accepts connections.
I have set up Windows Small Business Server 2003 and was testing it over the past week. Everything has been going well and yesterday it requested to install an update (not to sure what it was now) and soon after the update was installed a restart was required.
After the server shutdown and tried to restart the system will not restart.
The machine powers up and then I am faced with a blank black screen (no load bar nothing). The monitor led light flashes from green to orange then to a static green light after the Dell splash screen.
I can load up into safe mode although I do not know how to work out what is wrong. I am guessing the update has caused the issue, possibly a boot sector needs repairing. There are no new additions to control panel -> install/remove programs which i believe is where all updates can be uninstalled from.
I backed a system up with rsync, and just used rsync to copy it into a new machine... I just backed up / to my home directory on another machine, and then 'extracted' it to / on the new machine.
But now everything (and I mean everything) is owned by "matt", my user on the intermediate machine. I rebooted the system to get it to boot the new stuff without realizing this, and now it's not booting... Since /etc/passwd, /bin/bash, etc. aren't owned by root.
Any tips on where to go from here? As I said, it's a brand-new machine (VM, actually: even better!), so re-imaging is a solution, but I'd still have to copy the data back over. Reinstalling is a pain, though, so if there's a simple fix, I'd prefer that. I've got pygrub installed as a boot manager for the VM, but I can't for the life of me figure out how to get into single-user mode. (Nor am I sure that a "cd /; chown -R root" will have the desired effect?)
After installing Kernels seems /boot is boing to be full soon. Which files can be safely deleted ? Mean lets say to keep the latest Kernel and previous version:
I've exausted my self attempting to load on a boot image to the management blade for a project that i'm doing with a few friends.
I just bought this Foundary *off ebay of course* and who ever had it last removed the image! I mean I cant even get into the primary or secondary. I tried booting from tftp, but everytime that happens, the switch just restarts and then doesnt boot up again. This is what i'm getting.
Code: BOOT INFO: RESET ANY master arbitrate : become primary arbitrator. BOOT INFO: Become active CPU module M2 BI Boot Code Version 06.05.00 Enter 'b' to go to boot monitor ... BOOT INFO: load from primary copy BOOT ERR: bad code image header BOOT INFO: load from secondary copy BOOT ERR: bad code image header BOOT INFO: try to boot from bootp server bootp timed out, bootp-tftp process aborted! BOOT ERR: bootp failed
I currently have the B2R07601b.BIN image, just I dont know how to load the file onto the blade via tftp or any other method.
I've software RAID installed with one SATA and one ATA/IDE drive. It is a combined controller so I had to add noprobe=/dev/hdc to the kernel boot line. Now the disks are named /dev/sda and /dev/sdb. There are four partitions, /dev/sda1 and /dev/sdb1 are the /dev/md0 root partition and then /dev/sda2 and /dev/sdb2 are the swap partition.
First when I removed one drive I just came to the grub command line..
Then I tried to do this in grub to make both drives bootable: grub>device (hd0) /dev/sda grub>root (hd0,0) grub>setup (hd0) grub>device (hd1) /dev/sdb grub>root (hd1,0) grub>setup (hd1) grub>quit
Now it looks like normal when I get to grub apart from that the background of the boot screen is black instead of blue and then the computer just restarts when it is supposed to start/boot the system.
I am in a somewhat complicated situation... I wanted to order a custom server with hardware 3Ware RAID controller but after over a month of waiting I was told the HW RAID controller, as well as any other 3Ware controller they tried, does not work with the motherboard used in the server from Fujitsu-Siemens and that they simply got a reply from FS that the controller is not certified to work with their motherboard.
So although I'd prefer a HW raid, I am forced to either choose a different webhost or setup a software RAID. The problem is, I haven't done that before and am somewhat moderately...scared
I have read a lot of the info about SW RAID on Linux that I could find through Google but there are some questions unanswered still. So I thought that perhaps some of the more knowledgeable WHT members could help me with this problem...
The server specs will be:
Core2Duo E6600 (2.4Ghz), 2GB RAM, 6-8x* 250GB SATA II HDDs, CentOS 4.4 or SuSe, DirectAdmin
* I prefer 8 HDDs (or actually 9) over 6 but I am not sure if their server chassis can hold that many HDDs, I am awaiting answer from them. They don't have any other drives beside the 250GB ones so I am limited to those.
The preferred SW RAID setup is to have everything in RAID 10, except for the /boot partition which has to be on RAID-1 or no RAID I believe, plus one drive as hot spare (that would be the 9th drive). I am quite sure they will not do the setup for me but will give me access to KVM over IP and a Linux image preinstalled on the first HDD so that I'll have a functional system that needs to be upgraded to RAID-10.
How do I do that? The big problem I see is that LILO or GRUB can't boot from a software RAID-5/10 so I will have to mount the /boot partition elsewhere. It's probably terribly simple...if you have done it before which I have not. I have read some articles on how to setup a RAID-5/10 with mdadm (e.g. [url] ) but they usually do not talk about how to setup the boot partition. Should it be setup as a small sized (100-200MB) RAID-1 partition spread over all of the drives in the otherwise RAID-10 array?
What about swap? Should I create a 4-8GB (I plan to upgrade the server RAM to 4GB in near future) RAID-1 swap partition on each of the disks or swap to a file on the main RAID-10 partitions. The second sounds simpler but what about performance? Is swapping to a file on RAID-10 array a bad idea, performance wise?
Is it possible to grow a RAID-10 array in a way similar to growing a RAID-5 array with mdadm (using two extra drives instead of one of course)? mdadm doesn't actually even mention RAID-10 despite it does support it without having to create RAID-0 on top of RAID-1 pairs if the support is in kernel, from what I know.
Recently left a big corporate job and started my own consulting firm in the area of human resources/employee benefits. Right now, my technology consists of a laptop with online backup through Carbonite. I am ILLITERATE when it comes to technology, so bear with me please....
BackgroundThe business plan calls for growth by adding a small number of employees, starting with an assistant, along with working with independent contractors. These will each need to have access to the files that now reside on my hard drive. I don't anticipate more than 6 people (employees and/or contractors, combined) in the first year.
In addition to the shared access described above, I would need to be sure that the environment where files are stored is highly secure, and that I can grant access to files to some people and not others.
In addition to the above, I need to ensure that all the data are backed up routinely.
Employees/contractors will likely not be in the same office location where I am located, and some (most) may work from a home office.
My assistant, when hired, may/may not be in my office. Regardless, (s)he will need to have access to (and make changes to) my contacts and calendar in outlook. In addition, (s)he will need to be able to read and send emails on my behalf.
AT&T, as part of my advertising with them in the Yellow Pages, is developing (and will host) my website. Included in their service will be email boxes (up to 20) with my domain name.
Business Need Based on these points, I figured I needed to buy a server, so I've been talking with Dell. Of course, they'll sell me a server and they have a relationship with All Covered who will install it and make sure its operational.
But after talking wtih Dell, I learned that there was something called managed hosting, colocated hosting, dedicated hosting, and shared hosting. I called Rackspace, they said they would be overkill for what I needed and referred me to Mosso. Mosso said the same thing, and sent me to this site.
i install APF and config conf file but i have a problem for start APF :
root@server [~]# /usr/local/sbin/apf -r eth0 : error fetching interface information Device not found eth0 : error fetching interface information Device not found eth0 : error fetching interface information Device not found eth0 : error fetching interface information Device not found eth0 : error fetching interface information Device not found Development mode enabled !; firewall will fluch every 5 minutes. Unable to load iptable module (ip_tables), abroting
While i have loads a experience running servers remotely, I know to start my own ISP is a bit more costly and involves things like rack servers, temperature controled rooms and BANDWIDTH.
I have handle on 1st two, ( and yes htings like insurance and a store are looked after )
What i need are a list of T3 providers that I can contact about purchasing a dedicated T3 line for our store. While the location isn't yet set in stone and i may in fact look at a existing computer store owner who may be open to the idea already.
The company will host local websites, and others websites.
AND allow for reselling on a lessor level and include at least 6 others who host game servers.
With these 6 the T3 line will probably be almost half used, so the ISP must be scalable for growth.
The thing i need in nut shell are pricing on a T3 line of my own in or close to downtown Oshawa Ontario, Canada