Server Became Read Only System
Mar 29, 2009
I had a linux server (CentOs 5, mysql5, php5, directadmin). I had problems with apache few days ago, that's why i hire sys. admin who tweak the system (install the PAE kernel), and some more configurations, and during last 7-8 days server work w/o any downtime (before this server had 1-2 downtimes per day-> OOM killer.)
Now i had only ssh access (emails, directadmin access - give "wrong password" answer). As told my sys.admin It became read only system.
I cann't even reboot system
Quote:
[root@server sa]# reboot
reboot: /usr/local/lib/libpng12.so.0: no version information available (required by /usr/lib/libcairo.so.2)
such few commands work, the most commands that i know don't work
Quote:
[root@server ~]# ls -la
ls: error while loading shared libraries: libacl.so.1: cannot open shared object file: No such file or directory
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Jun 11, 2009
I have brand new server with CentOS 5.3 and latest CentOS kernel (2.6.18-128.1.10.el5PAE).
I have brand new HDDs with no errors (HDDs have only 1000 power-on-hours, server CPU temperature is normal - between 35-42 C). My server went read-only without any reason. I need to fsck main / partition (/home is separated) and it cleaned journal, then server became online.
After 2 weeks it happens again - I did again fsck on / partition and it recovered journal as before. I decided to ask Data Center to replace RAID-1 card and memory - they did it. After 3 weeks server went read-only again.
I ssh into server and saw that kswapd0 process is using 100% cpu and load is over 170.
After fsck it recovered journal on / and server is again available.
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Jun 21, 2008
I have a dedicated server and till few days back i was able to edit my files fine but this morning when i am trying to edit any file, it gives me back this error:
[user@domainname theme]$ chmod 777 header.php
chmod: changing permissions of `header.php': Read-only file system
[user@domainname theme]$
[root@domainname theme]$ chmod 777 directoryy
chmod: changing permissions of `directoryy': Read-only file system
[root@domainname theme]$
I tried both as normal user and root and same results. Do you think the hosting guys changed the permissions of the file system or something?
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May 22, 2008
I want to take some data from a raid-disk (taken from a raid-1 sstem). Put it into a new system already, but this system doesn't have any raid.
When viewing "fdisk -l", it said /dev/sdb doesn't contain valid partition. Is there anyway I can mount it now? I am on CentOS 4 box
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Apr 22, 2008
I have always used debian on my virtual machine but was just curious as to what OS people use for their hosting?
The company I am looking at moving to for hosting offer the following options:
* Debian
* Ubuntu Server
* Open Suse
* Free BSD
* Fedora Core
* CentOS
* Gentoo
* Slackware
* Windows 2003 Basic
* Windows 2003 Pro
I have heard from a lot of people that Freebsd is good for hosting but just wondering what your views are
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Mar 10, 2008
to get a dedicated sql server 2005 box and am not sure the best operating system. These are my choices:
Windows Server 2003 Enterprise - 32 bit
Windows Server 2003 Enterprise - 64 bit
Windows Server 2003 R2 Enterprise - 32 bit
Windows Server 2003 R2 Enterprise - 64 bit
This is the server I'm thinking of getting -
Dual Woodcrest Series - SATA Dual Intel Woodcrest 5130 Dual Core Processors 2 x 500GB Hard Drive 4096 MB RAM
Currently, I have my IIS web server and sql server 2005 on the same machine and it's just too bogged down. That one runs windows 2003 standard 32 bit on a Dual Xeon 2.8GHz Processor 2 x 80GB Hard Drive 4096 MB RAM
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Jul 3, 2008
direction of any companies who offer dedicated servers with SuSe -
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Mar 7, 2008
I haven't yet broken into the realms of dedicateds, although I have a decent VPS and am anticipating the need to get a dedi in the future.
Hence I'm wondering briefly why exactly RAID (insert some random number?) is recommended? I know it does something to do preventing hard drive failure, although would an efficient backup system be a decent alternative with regards to cost?
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Aug 15, 2007
Is it a good idea to use Microsoft System Center to monitor web hosting servers?
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Jun 29, 2009
a good method to have processes controlled in the resources they use, in a shared cpanel environment?
For example, it appears that the cpanel backup (compressed) made the load skyrocket to beyond 60% cpu and 95% memory usage today, and this server is beefy to begin with.
I want some system to kill processes immediately if they exceed X amount of resources or kill processes that spiral out of control (X amount of processes from same user).
I'd like to be alerted of this action as well.
How can I set this up?
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Apr 22, 2009
billing system to control the traffic between router and servers. I thing I need a billing system installed on server with webgui like those used by ISPs but I need it working with paypal and other payment gateways.
The other solution is to use radius server but I will need it working with payment gateways. Can you recommend me a good radiuns server with many options?
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Nov 17, 2008
I have always been using a no-ips service for a domain name. It was really easy with the dynamic update client because I have a dynamic ip.
I have just registered a domain and would like to point that to my server also. My registrar says it is currently parked, there doesn't seem to be an option to unpark it anywhere. I have also changed the nameserver to my no-ip domain name.
Nothing is happening.
I have also googled dns.. If I want to point my domain directly to my server do I need to go and install Active Directory and then dns or can I just install DNS, do I even need to do this??
Seems like a lot of hassle tbh, this is really frustrating me because i'm pretty tech savvy but am completely lost here..
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Jul 7, 2008
floodkoruma is a script which securing our servers from syn floods. But I couldnt understand our connection lost from server on that screen. Last screen is it.
last log messages
Jul 7 19:41:27 server filelimits: Increasing file system limits succeeded
Jul 7 19:42:25 server kernel: printk: 234 messages suppressed.
Jul 7 19:42:30 server kernel: printk: 1026977 messages suppressed.
Jul 7 19:49:42 server syslogd 1.4.1: restart.
Jul 7 19:49:42 server syslog: syslogd startup succeeded
as you can see I rebooted from apc server. But before it
Jul 7 19:42:30 server kernel: printk: 1026977 messages suppressed.
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Mar 6, 2008
We have been working on a site for a while, couple of days ago I copied the source from the server - as there are few people making the changes to it - to get a fresh copy.
Yesterday I was blasted by my client that I have deleted files on the server and it had caused the site to go in disarray and they had to upload everything again.
I didn't delete anything, only copied, and after some arguments (naturally I am not happy with the allegation put on me) I was able to get the FTP log, but I don't really know how to read it, I am hoping that someone here would know and be able to assist:
HTML4Strict Code:
Tue Mar 04 16:49:29 2008 0 xx.xx.xx.xx 9365 /home/APP_NAME/public_html/user/add_room.php a _ i r xxxx ftp 1 * cTue Mar 04 18:20:02 2008 0 xx.xx.xx.xx 3909 /home/APP_NAME/public_html/About.php a _ o r xxxx ftp 1 * cTue Mar 04 18:20:04 2008 0 xx.xx.xx.xx 6046 /home/APP_NAME/public_html/affiliate-join.html a _ o r xxxx ftp 1 * cTue Mar 04 18:20:08 2008 0 xx.xx.xx.xx 6158 /home/APP_NAME/public_html/affiliate-join.php a _ o r xxxx ftp 1 * c
I have replaced the IP, application name with x.
I am guessing that *c means copy, but I don't want to make fool of myself when I confront them with this. Assuming that *c is copy what would be the command for delete?
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Feb 25, 2015
I have a new CentOS 7, with Plesk 12, CentOS 7 by default has XFS filesystem.
I try migrate sites from another Plesk Server but Plesk agent say: "hard disk quota is not supported due to configuration of server file system" (my CentOS 7)
My CentOS7:
CentOS Linux 7.0.1406 64 bits
Plesk 12.0.36
My fstab
[root@ns ~]$ cat /etc/fstab
/dev/mapper/centos-root / xfs defaults,usrquota,grpquota 1 1
UUID=ba391bd5-786c-4ae7-8bbd-f36f831ae6eb /boot xfs defaults 1 2
/dev/mapper/centos-swap swap swap defaults 0 0
I added "usrquota,grpquota", then mount -o remount / ; but when I try quotacheck -fmv / I gest this:
[root@ns ~]$ quotacheck -fmv /
quotacheck: Skipping /dev/mapper/centos-root [/]
quotacheck: Cannot find filesystem to check or filesystem not mounted with quota option.
but quotaon command works:
[root@ns ~]$ quotaon /
quotaon: Enforcing group quota already on /dev/mapper/centos-root
quotaon: Enforcing user quota already on /dev/mapper/centos-root
The problem here is why Plesk does not recognize quotas as enabled on CentOS 7??
If I try this command it seems good:
[root@ns ~]$ /usr/local/psa/admin/sbin/usermng --isquotable
0
Also I do this:
- Disabled Selinux
- Check all packages as quota, etc.
I have been using some reference: [URL] ....
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May 21, 2009
root@server [/backup/cpbackup/daily]# chmod 1777 /tmp
chmod: changing permissions of `/tmp': Read-only file system
root@server [/backup/cpbackup/daily]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 271G 135G 123G 53% /
/dev/sda1 99M 58M 36M 62% /boot
none 2.0G 0 2.0G 0% /dev/shm
/dev/sdb1 135G 80G 49G 63% /backup
/usr/tmpDSK 4.9G 64M 4.5G 2% /tmp
/tmp 4.9G 64M 4.5G 2% /var/tmp ....
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Oct 27, 2009
Does anyone know what this error means in my error_log:
[Tue Oct 27 14:00:17 2009] [error] [client 90.152.40.73] mod_mime_magic: can't read `/var/www/vhosts/domain.com/subdomains/bugzilla/httpdocs/report.cgi', referer: [url]
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Apr 1, 2008
I just hired my first dedicated server and I don't get why but it is like if it is not reading my htaccess files for mod_rewrite.
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Aug 28, 2008
r 32 bit systems can not read more than 4 gb ram ??
r any thing in kernel to do fix it
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Feb 26, 2008
I have a server with pacificrack. When I see my website it says "Read-Only File system" and my SSH dies with read-only file system errors.
It happens once per month, and the bad thing is I'm sleeping when it happens so I don't know my server is in this state.
Even though support fixes the problem within 15minutes of my support ticket, my server is down for hours because I don't know its down to then raise a ticket. I asked support why it happens and they never tell me... just tell me to read the logs but I'm not technical enough to understand linux logs etc.
Server is centos.
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Oct 22, 2007
I received email from my cpanel server as follow:
IMPORTANT: Do not ignore this email.
This is cPanel stats runner on server.domain.com! While processing the log files for user xxxx, the cpu has been maxed out for more than a 6 hour period. The current load/uptime line on the server at the time of this email is 18:46:25 up 59 days, 13:16, 0 users, load average: 2.24, 2.23, 2.25
You should check the server to see why the load is so high and take
steps to lower the load. If you want stats to continue to run even with a high load
So what does this mean? and how can i check out this? how to reduce the cpu usage? Where to see the current usage?
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