Do web hosts have the means to self-detect or self-correct problems with people's websites? If so, is there a name for this ability?
Seems that every host I've used has to be *told* about major problems, such as the server or database being down completely. I'm tired of going out of town fearing a site crash. I don't expect them to catch every problem, but when the failure is so blatant, it would be nice if they caught it...
I have a few customers that want to manage their own content. I don't think a CMS is the way to go (learning curve is too great) so I was wondering if anyone knew of a website software similar to Site Builder (but not Site Builder) that will allow a customer to edit their own content? Or maybe suggest an easy to use CMS~
This is a bit off topic but I am looking for a person kind enough to test install a few RPM packages on an AMD 64 bit system with a 64 bit OS (Fedora or otherwise), preferably an Opteron but not required. The RPMs in question are IBM's DaCS which is something designed for a supercomputer yet to be created. We have one part of the DaCS model but oddly enough, we don't have any AMD systems (tons of high end Intels however).
On Intel machines, after installing these RPMs, the binary that is to be run (/usr/sbin/hdacsd) fails with a "Floating point exception" so I'd like to find out if this is an issue caused by a 3DNow optimizations to these RPM binaries (Intel does not support 3DNow) or something else.
I've put up the RPMs at [url] and the main one to be installed is dacs-hybrid-3.0.0-7.x86_64.rpm
After installation, run hdacsd (possibly in /usr/sbin) and tell me if you get the floating point exception.
What do you think about this cabinet style's ability to cool say 18-20 1U core 2 duo servers? [see attached jpeg.]
its got a fan in the ceiling of it. I have read that ceiling fans don't do much and its the front to back cooling that really makes a difference. Is this true?
If you don't like this type of cab, which type do you like?
We recently began to mirror a large number of open source projects with a dedicated mirror server on our network and I was surprised not only with how popular the mirror server has become, is, but also of the ability of the hardware we're using to keep up with the load.
At an given time, the mirror seems to be pushing at least 50 Megabits of trafficthe server is also an IRC server (irc.igsobe.com) for customers and internal staff communications.
The hardware is a low end Dell Pentium 4 @ 2.66 GHZ server, running with 512MB of RAM and a 400 GB ATA hard drive. CentOS v5.3 is the operating system.
If you're interested, you can view the HTML logfile analysis here but that doesn't tell the full story as FTP users make up a good portion of the traffic. We've received over a quarter million hits in the first few days of November alone.
The only change that I made to the default configuration was lowering the maximum number of Apache servers to 128.
Just thought I'd share this information as I wouldn't have thought a server with such a small amount of RAM would be able to serve up so much data, even though we are talking strictly static HTML files.
I'll definitely keep this in mind when clients ask me for those "what type of dedicated server should I use for XXX" type discussions that are had all too often with clients.
I have a private vps server works under linux ( centos ), sometimes am getting msg from csf/firewall subject:
lfd on website.com: Suspicious process running under user user account
when i check my cpanel/whm vps ( service status ) its shows that the memory limit 80% - 85% , It's had a good forum works with vb, but am wonder how to check my vps memory, i mean how to detect if there any script, or malware, or anything takes the vps memory out...
Is there any way to check,know what works under my vps, so it's take my memory limit 85%?
I have a few incomplete steps to see if I got some intruder in my Linux system.. But i really would like to have all your suggestions to make a good doc about this matter,
1.- Download and run Rkhunter & Chkrootkit 2.- Run "w", and "netstat -nalp |grep "SHPORTHERE" to see whos connected using SSH 3.- Search for ssh and ftp accepted logins.
Code: last cat /var/log/secure* | grep ssh | grep Accept cat /var/log/secure* |grep ftp |grep Accept less /var/log/messages | grep ftp 4.- Watch current connections and scan your ports.
Code: netstat -nalp nmap 1-65535 localhost 5.- Search for suspicious content on common explotable dirs.
Code: rm -rf /tmp/sess* rm -rf /var/dos-* rm -rf /var/tmp/ssh-* rm -rf /var/tmp/dos-* ls /tmp -lab ls /var/tmp -labR ls /dev/shm -labR ls /usr/local/apache/proxy -labR ls /usr/local/samba -labR 6.- Checking for anomalies on this files.
Code: less /etc/passwd less /etc/shadow less /etc/groups 7.- Search for new users at sudoers, check wtmp and telnet is not running.
Code: cat /etc/sudoers who /var/log/wtmp cat /etc/xinetd.d/telnet 8.- Find bash history files
is there any proved method to determine what kind of attack you are under? Our server has been under attack for more than a day now but so far we have not been able to find out what kind of attack it is exactly. The server maintence company we are using says it's a DDoS attack but they don't say how they found this out. Also, they are not telling us what kind of DDoS attack it is.
Is there any way to distinguish a dedicated server from VPS using Linux commands and detect the implemented virtualization technology like XEN and OpenVZ, ...?
I have received a dedicated server and in cPanel its written Virtuozzo but they tell me it's XEN , beside this what's the reason to implement a virtualization technic while they give me a dedicated server? Maybe to obtain cheaper cPanel license,
If i put domain.com on uptime checker,and downtime is detected,downtime will be reported if dns is down or if http server is down.So question is what i need to do to see what exactly went down?For network uptime i can ping ip adress,but for these two i really don't know.
I know the ISP is RADIGRAFICA COSTARRICENSE, and the server location is San José in Costa Rica.
I googled the ISP name RADIGRAFICA COSTARRICENSE, trying to find out the company site which offer's web hosting service, but I can only find racsa.co.cr; however, this doesn't look like a web hosting company.
On one server which i have sometime appear very high load up to 70,and that causing downtime of few minutes(i have historic data webmin module where i saw high load and downtime time matches,but it doesn't show what causing it).That server also have hardware raid in mirror mode.(copies exact data from one disk to another).
Sometime ago the DC told me there was too many files on server and I started to investigate what is was and i got info that some one hacked the server and was sending spam from it.
When I looked at the accounts in Direct Admin some of them had the contact email to some hacker so i deleted the emails and changed password on the DA account and the email of those accounts.
Still I got too many files all the time so the server goes down so i have to delete the spoolfile all the time like 10 times a day
Please help how do I detect from what account do the hacker operate?
Can I detect that somehow?
Is it possible to do some small script to detect this?
Is there any advanced module to DA that gives me the info?
configure Apache server to handle users requests using condition based on where he come from so i can redirect him . what i need if user came with from site start with xn--* redirect him to virtual host and if he came from any other link then go to another virtual host
