Slackware Linux Machine Hangs For No Apparent Reason
Jun 27, 2009
I have a dedicated machine collocated at some hosting provider and after a while (14 days or so, but timeframe is not constant) it hangs for no apparent reason. It happened 2 times already. Nothing in the logs (it logs everything), nothing at all.
Before the commission the machine was running for a month without any problems.
The first time it happened the tech guy plugged in monitor and keyboard and could not see anything on the display. Before that machine was not loaded with any traffic, nobody should have actually known it is there (except for some DNS traffic). It took some 20 days of uptime.
The second time it happened was yesterday, after some 15 days of uptime.
I suspect hardware malfunction because I have 2 "identical" (OS & progs, not the hardware) systems running without any problems. It is an HP DL380 G5 machine, the problematic one.
I have a dual processor, dual core server with 12GB memory.. It uses less than 4% CPU utilization and less than 5% memory utilization, but for some reason It's really slow to load sites...
I know this isn't much information, but would any have any ideas as to what could cause the slow speed?
If is anyone is available to look at it, I'll pay you (obviously).
PRODUCT, Plesk for Windows VERSION 11.5 latest update VERSION OF MICROUPDATE 11.5.30 Actualizar #39, OPERATING SYSTEM Windows 2008 Server Suddently with no apparent reason, MYSQL stops and Ihave to go to the panel and restart it.
Every Morning I have to restart MySQL thru the control panel in remote console of windows..Works all day long, and then stops at night..Should work as always did, for several months I did not even reboot the server, no I have to reboot the server to see if that fixes the problem. Latest windows update, latest Plesk for windows update, but I have the feeling that with the latest microupdate something has broken,
This happens when I try to add a new domain or when I am trying to remove a domain. It just hangs, the browser says waiting on server while plesk just hangs. This is a fresh new install of Plesk 12 as well. I added a bunch of new domains tonight. No crazy changes or anything to plesk. I have found nothing so far in my search.
I'd like to upgrade my server from Ubuntu 12.04 to Ubuntu 14.04. The idea is to migrate my actual server (S1) to another one (S2). Then, format and install ubuntu 14.04 with Plesk on S1, and finally migrate the data from S2 to S1. Is it a good solution? Is it possible to do this using only one server? I don't know if I can do it making a backup, install Ubuntu 14.04 and then, restore the data into the server.
However, I have a problem with the migration agent. When I go the migration page, the migration agent tries to update itself and it keep at 0% forever (I attach an screenshot).
I have an issue with my daily backup. I configured to have a daily backup on an external FTP server. Everything looks to work correctly but in the panel I see that the task is a 100% forever. Never finishing completely.. So the next day, the task is not starting.. I have to remove manually the task in backup manager screen.
here is the last lines of the log file (in /var/log/plesk/PMM/backup-2015-01-20-20-46-02-824)
how I can install GCC on a clean slackware 10.2 server. It doesnt have any cc compiler, so am not able to compile gcc. Are there any binaries of c compilers for slackware?
we use CentOS Linux 7.0.1406 (Core) Plesk Version 12.0.18 Update #26 I got reports of several users on my system, and i can confirm this myself, that fail2ban is blocking courier imap and postfix connections when i try to connect to the Plesk Server with Outlook 2013 and theBat and the Apple Mac Mail Client.
I used the correct login information but fail2ban blocked the IPs for no obvious reason:
Code:
2014-12-03 12:46:57,908 fail2ban.actions[920]: WARNING [plesk-postfix] Ban 82.134.94.102 2014-12-03 12:46:58,049 fail2ban.actions[920]: WARNING [plesk-courierimap] Ban 82.134.94.102 I disabled the two jails now and it works perfectly. But why is fail2ban blocking valid requests ? I tried it myself and i did not enter a wrong password or something. MaxRetry is 5 so this should not be a problem. The problem is not affecting all users but just a few. However all of them are using correct credentials so i dont understand why they are being blocked at all.
I thought this problem was fixed in Plesk 11.5 but I'm still getting the following backup warnings in Plesk 12..."For security reason backup is performed on behalf of subscription system user...."
My phpbb forum creates cache files which have apache ownership and Plesk backup manager gives warnings that it cannot backup the files due to ownership errors.
I have searched for days for a solution without success. If I change the permissions to owner instead of apache the forums don't function correctly.
Is this a Plesk bug that is still evident in Plesk 12?
I am currently researching the options open to me for Virtualisation, the two main ones I have seen are Xen or KVM.
I mainly use CentOS (RHEL), but have read that the version of Xen with it is very old, broken and unstable. KVM isn't included in the kernel that ships with CentOS, as it is too old, apparently it was first featured in Kernel v2.6.20. There isn't likely to be an update till RHEL6, which is due for release first quarter of 2010. I can't wait over a year, so need to find another Distro for use as the Host OS/Hypervisor.
I have built a pretty powerful server, it has an Intel Xeon 3230 which has VT - so I might be better off using KVM over Xen. I am going to collocate this server, so realistically I can make this decision only once - as it would be a PITA to re-install a host Linux distro remotely.
I did a search on distrowatch for distros with the latest version of the kernel, and Slackware came up as being just one minor version behind the most current (v2.6.27.7).
Now this distro is very mature, so should be a fairly safe bet, but it is a 32bit version and can't host 64bit VMs. I have 8GB of ram so want to be able to use it all, and offer the choice of 32/64bit VMs. So that's that out of the window.
I have used Arch Linux on and off for a couple of years as a workstation OS, but because it is so bleeding edge, when pacman updates it can break itself. But I suppose if I just use it as the Host OS, and never let it update/reboot, then it won't break. It should be fairly lightweight and stable, as I will be installing the bare minimum packages. I have a management card, so if the server fails to boot, then I can still remote in to fix it.
If I do want to update the kernel, is it possible to update without rebooting? I think it is somehow... unless I can just reboot during an unused time at 3am or something.
As you can tell I am leaning towards KVM on Arch Linux (x86_64). Is this a good plan?
I was wondering if anyone can help me out or point me to a guide that will allow me to to create a Windows 2003 x64 Virtual MAchine using VMWare server on a CentOS or Redhat installation.
I am planning to get a Juniper firewall, but due to SSG140 has a maximum of 48,000 concurrent sessions per second, so it triggers me how do I measure the concurrent session of a linux server of the total throughput instead of just port 80?
My site is being attacked by what appears to be a dictionary attack on my mail account. They are sending e-mails to random accounts at my domain from random e-mail accounts from somewhere else. Each of their messages is coming from a unique e-mail address and a unique IP address.
Now, we have some dictionary ACL installed that basically blocks any IP address that is caught doing this. So we are blocking tons of IP addresses, but they keep coming at us with new ones. We also have it setup so that the mail is rejected right away for any accounts that aren’t actual e-mail accounts of yours. However, they are hitting the server so hard that it doesn’t seem to be making any difference.
We have a domain portal controller for windows. All the machines in the n/w are connected to it. So, when ever an user enters the user name and password it gets authenticated from the domain portal controller. So, my login can be accessed anywhere in the netowrk.
Example : my login is sabarishks which can be used in any machine under this domain controller.
But, if the system is installed with both linux and windows only windows username will be authenticated using the domain controller. Whereas, the linux users will work with in the system using /etc/shadow file. Hope, I am clear so far.
The requirement is same as above. The authentication mechanism for linux should work as windows. When ever an user is entered with a username and passwd, it should get authenticated from domain controller.
I mean, the user created in a windows machine should be used for linux login also. More importantly, It should work in all systems.
Which technology can be used to do this? Samba,Ldap, NFs or what?
I have a dedicated server which I am managing myself. I have experienced a strange thing today. The whole Apache daemon seemed to be hung. Every Web request resulted in a timeout, even when executed from localhost. The CPU usage has been minimal (like 99.7% idle). No MySQL long statements being executed, nothing. mod_status did not help me, because requesting the status also hung (as it is retrieved by HTTP). After Apache restart everything went back to normal.
I have no idea what could have happened, and moreover Apache does not provide me with any tools to diagnose it (because mod_status doesnot work in such situation). So I am asking you for help - do you have any idea what I could do when such problem repeats to diagnose its source?
I have a problem. When MSN Search robot looks through my VPS, the machine is going "asleep", e.g. Apache2 (Port 80) doesn't answer at all. Here is the last falling:
Code: 23:14:15 up 4 days, 9:06, 5 users, load average: 37.18, 31.25, 27.46 I hardly ever can enter 'pkill apache2' to kill Apache2 processes. Here is my Apache2 configuration (timeouts, prefork, e.g.):
Code: Timeout 30 KeepAlive On MaxKeepAliveRequests 20 KeepAliveTimeout 5
I seem to be having troubles getting yum to run. The problem occurs when I try to run yum via ssh using putty or install perl modules through whm.
When I try to run it, I generally get: Loading "fastestmirror" plugin And nothing after that, even if I wait a while. This happens when I run: yum update yum install imagemagick (my current reason for trying to get yum to run) yum clean all (probably other yum commands) If I run yum with --noplugins, it just skips putting out the fastestmirror message. Some info on my system: CENTOS Enterprise 5.2 Kernel Version: 2.6.18-92.el5 Intel C2D e6750 WHM 11.23.2 cPanel 11.23.6-R27698
Is there a reason to set a high TTL for DNS? Like the standard is a few days.I set mine to 10 minutes. So whenever I do a change its propagated within 10 minutes. Is there a reason this would be bad? I realize it means more queries to my server, but 10 minutes is still rather long, not like thats going to totally hammer my server,
We currently have a server that has Windows 2003 and were wondering the advantages of upgrading to R2? How I spend the extra money for an upgrade? Please no linux comments
After four month they banned my account, When I talked to them they said we banned your account for tow days because we Suspicion about you and I waited them for tow days but nothing new, after that I sent all my evidences to them, the passport picture, driver's license, ID's card and Visa Card picture from front and back.
NOW!
I don't know the reason for banned my account, why they banned me?
today 3ix.com logged into my ftp account and delete some files! i thought the site is hacked but the truth my site didn't hacked ! when i asked the support team to allow me to change my ftp details from the client area he said to me " Help24x7: Well, we got complaint from SpamCop against your site and we are unable to host it "
this problem was solved long time ago and spamcup register here in the forum and said to all " im sorry the report was false" ! then 3ix.com restord my account again , why they now open this old problem!
look here at the problem you will finde the full details
[url] and here the hostcare admin said to me we are sorry the report was false ! we are going to restore your account " We just got confirmation from SpamCop that they feel the complaint was false and I have asked a 3iX Admin to restore your site, it will be live in the next 60 minutes.
Thank you for working with us to resolve the issue, don't hesitate to contact the 3iX HelpDesk if you have any further difficulties.
Regards " [url] im very wondering ! why they open this olde proble again! they wast my time and mak me very sad. dose this justice? here is also another person they treminate his account please read [url]
We have recently launched a new website with a SSL homepage which houses our login. Our website moved to a new IP address, therefor we moved the certificate to the new server as well. Thus far, we have had NO problems with the site with the exception of 2 MAC users who's browser hangs when they try to navigate to the site now. They can access other HTTPS sites, and they can access pages on OUR site that are NOT HTTPS, but when trying to browse to our HTTPS Page, the browser hangs. This is not just ONE browser on their MAC, it's EVERY broswer on their machine (Firefox, IE, Safari). It connects, but then doesn't load anything onto the screen. We tried clearing their DNS cache on their machines with no avail. To this point, we are stumped. We have identical machines, with idential OS and browser versions and everything tests fine. It is obviously something on their machine, but we don't know what it is. We have run out of ideas. Any MAC users that can lend a hand here? Is there a way to delete the certificate on the MAC and have it redownload to the user?
I'm having my first DDOS attack. Do people DDos servers for no reason? Beacause they are attacking an IP on a server that have not had any sites or any use on it for 4 years.
problem I was having which was Windows Small Business Server 2003 would hang on boot up. I never got the time to reinstall the server until now.
I have installed the server and applied all updates. This worked fine until I install the Windows Server 2003 Service Pack 1 or 2. When I install SP1 or SP2 on reboot the server loads the Dell splash screen then the monitor LED light goes orange then green then orange and then just hangs with a blank screen.
I can boot into Safe Mode and uninstall the Service Pack and I can then reboot without any problems. I have installed ADAM SP1.
