Where To Check Name Servers And Do Who Is

May 15, 2007

Where to check name servers and do who is as dnsstuff.com
is a paid service now.

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How To Check Load Via Ssh And Check Files Causing Load

Jul 1, 2009

I would like to know how to check load via ssh and check files causing load?

I want the ssh codes for 2 different set of control panels, one with cpanel+whm and other with kloxo+hypervm

and I would also know how to check the files causing the load, such as some files could have been interrupted while processing, so they could be causing load some times, so I want to stop such processes if any are running on the vps on my friends accounts

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Hardware: Db Servers, Web Servers, File Servers. Cpu, Ram, Disk

Jan 20, 2007

I have a lot of questions here so if you can't answer them all I understand. even pointing me somewhere where I could get the answers would be appreciated; hardware sites focusing on server hardware, forums focusing on such, etc.

we plan to have three different types of servers:

- db server (self explanatory. mysql. for forums, mysql driven sites.)

- file server (lots of files around ~2-10MB, consistant 70mbps right now, but we want more room for upgrades. needs a LOT of storage room.)

- web server (lots of php files, but also static things like plain html, images, etc. also includes all misc services for the setup-- dns, etc.)

could I be given a rundown for which hardware each of the three should have? I don't need specifics, even just knowing that more ram is important here while cpu doesn't matter as much, or that the fastest disks available are a must, etc would all be valuable info for me. despite that, I certainly wouldn't mind specific hypothetical hardware configs.

for the database server I'm assuming the more ram the better. not entirely sure about the cpu? also not positive on disks...

for the fileserver, how much ram would be practical or useful? disk io will be an issue I'm because plenty of people will be pulling files at once so the disk needs to read from multiple places. scsi (and even raptors) are not an option as we need 750GB+ of space on a reasonable budget. more ram will take some load of of the disks, but how much is neccessary / reasonable?

for the web server I'm assuming cpu first, then ram, but it'll likely need less ram than the db server?

I'm more lost on the disks than anything. scsi on the fileserver is not an option under any circumstances due to $/GB. for the db & web server I'm willing to pay for scsi if the performance increase really does warrant the extra money, but I'd like to be convinced before shelling it out. if you have benchmarks geared at server hardware when it comes to disks I'd really appreciate it.

also, what's the best way to network these together when colocated? each one with a dual gigabit ethernet port and then the communications go to and from the router?

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Send Mail To Another Servers But We Cant Recieve Mails Another Servers

May 24, 2008

We send mail to another servers but we cant recieve mails another servers. We can't recieve with webmail and outlook.

I look logs but there is no error and our ip is not in blacklist.

there is the error in our server

[url]

linux cpanel centos 4.6

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Load Balancing 2 Web Servers And 2 MySQL Servers

Mar 28, 2008

I was wondering if it is possible to cluster 2 web servers and 2 mysql servers with only one server working as load balancer.

I am planning to use LVS (ldirectord and heartbeat).

Let's say I have 3 IPs allocated to the load balancing server.

111.222.111.222 (Main IP)
111.222.111.223 (Web Load Balancing IP)
111.222.111.224 (MySQL Load Balancing IP)
If a connection is made to .223 it would pass the request to one of the web nodes.
If a connection is made to .224 it would pass the request to one of the MySQL nodes.

Is it possible to do this?

If not, can I run, for example, nginx on 223 IP address to provide forward proxy? (Then it would not be able to HA but the main point is to load balance so)

Also, what would be the best way to keep the data same on both web servers? This is a web cluster for a very high traffic forum with a lot of uploads every hour so it has to do real time synchronization. I heard that DRDB is only one way and not two way so I'm not going to be able to use this.

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Renting Colocated Servers As Dedicated Servers

Oct 11, 2009

I am just colocating servers and managing them myself, and renting services off of them. In the future I would like to start offering dedicated servers as well. I am wondering if many companies do this, or if its more of a general practice to just setup as a reseller? The worst part that comes to mind is thinking of how to do billing for the bandwidth per month. With my setup I would only be offering flat bandwidth packages (like 2TB a month) but even so, I cant think of anyway to automate it so WHMCS knows if they went over, if so, how much, etc.

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How To Check VPS Os

Apr 10, 2008

i recently purchased a VPS from internetvps.com, but im not sure what OS of linux it is. How can you check the OS of the server?

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How To Check Ram

Jun 7, 2007

Let's say I have a VPS with 512 MBs of RAM.

How do I check in shell that this is indeed the case?

I read in some places that "top" and "free -m" and such can help.

But these gave me way more than 512.

Here is the output from my "free -m". Total shows here 3886 MBs of MEM??? That is almost 4 Gigs. Please someone explain this.

total used free shared buffers cached
Mem: 3886 3721 164 0 17 542
-/+ buffers/cache: 3161 724
Swap: 6142 2020 4121

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Nobody Check

Mar 20, 2007

Quote:

Nobody Check 1.0.3 Current on cPanel

Tue Mar 20 16:00:02 SGT 2007 on blue.mydomain.com
Server Load: 16:00:02 up 21 days, 14:02, 0 users, load average: 2.73, 2.20, 2.08
Warning: Malicious Nobody Process Found
=========================================
Options: kill bad proc=1 logging lvl=1

SCAN SUMMARY
========================================

Clean Processes: 57
DETECTED Malicious Processes: 1

DETECTION DETAILS
========================================

DETECTION: Process 4221 with name php and path /usr/bin/php

Process ID: 4221 has been killed
Restuls for PID: 4221
total 0
dr-xr-xr-x 3 easyzz easyzz 0 Mar 20 16:00 .
dr-xr-xr-x 291 root root 0 Feb 27 10:01 ..
dr-xr-xr-x 2 easyzz easyzz 0 Mar 20 16:00 attr
-r-------- 1 easyzz easyzz 0 Mar 20 16:00 auxv
-r--r--r-- 1 easyzz easyzz 0 Mar 20 16:00 cmdline
lrwxrwxrwx 1 easyzz easyzz 0 Mar 20 16:00 cwd -> /home/easyzz/public_html
-r-------- 1 easyzz easyzz 0 Mar 20 16:00 environ
lrwxrwxrwx 1 easyzz easyzz 0 Mar 20 16:00 exe -> /usr/bin/php
dr-x------ 2 easyzz easyzz 0 Mar 20 16:00 fd
-rw-r--r-- 1 easyzz easyzz 0 Mar 20 16:00 loginuid
-r-------- 1 easyzz easyzz 0 Mar 20 16:00 maps
-rw------- 1 easyzz easyzz 0 Mar 20 16:00 mem
-r--r--r-- 1 easyzz easyzz 0 Mar 20 16:00 mounts
lrwxrwxrwx 1 easyzz easyzz 0 Mar 20 16:00 root -> /
-r--r--r-- 1 easyzz easyzz 0 Mar 20 16:00 stat
-r--r--r-- 1 easyzz easyzz 0 Mar 20 16:00 statm
-r--r--r-- 1 easyzz easyzz 0 Mar 20 16:00 status
dr-xr-xr-x 3 easyzz easyzz 0 Mar 20 16:00 task
-r--r--r-- 1 easyzz easyzz 0 Mar 20 16:00 wchan

Netstat:

Environ:

Hello, I got this notification from the 'Nobody Check'.

Is there anything I need to be aware of? ..

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Mem Check

May 22, 2007

confirm this is only 1gig of ram?

Mem: 1034096 985128 48968 0 157944 559136
-/+ buffers/cache: 268048 766048
Swap: 2040212 160 2040052
Total: 3074308 985288 2089020

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CSF Security Check

Apr 20, 2009

I'm running CSF on a Cpanel server and have questions about new features in CSF

Apache Check

Check Apache weak SSL/TLS Ciphers (SSLCipherSuite)

Results

Cipher list []. Due to weaknesses in the SSLv2 cipher you should disable SSLv2 in WHM > Apache Configuration > Global Configuration > SSLCipherSuite > Add -SSLv2 to SSLCipherSuite and/or remove +SSLv2. Do not forget to Save AND then Rebuild Configuration and Restart Apache, otherwise the changes will not take effect in httpd.conf

Can someone explain this in laymen terms? I know this is new in Cpanel. I'm already running Apache 2.2, PHP 5.2.9 with suPHP enabled and mod_security as well (these rules: [url]

Also, what exactly are these CSF checks?

Check csf PT_SKIP_HTTP option
This option disables checking of processes running under apache and can limit false-positives but may then miss running exploits

Check csf SAFECHAINUPDATE option
This option closes a window of opportunity that opens when dynamic chain updates occur

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How To Check If The HD Is SSD Drive

Jun 11, 2009

how to check using SSH if the HD is SSD drive in a linux box?

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How Can Check Ddos

Jul 18, 2009

How can we be sure that we are facing ddos attacks any good command which will make me 100 percent sure that there is ddos attacks on server ?

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Possible To Run A Hardware Check On My VPS?

Feb 26, 2009

Is it possible to run a hardware check on my VPS?

For instance DFT (Drive Fitness Test) or Memtest?

I'm running HyperVM and WHM.

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How To Check IP If It Can See My Server

Apr 10, 2009

I have one client who cannot see my server and all domains on it. I;ve checked if his IP is block or not and I didn't see his IP on the apf deny host file. How to you check IP if it can see my server? I just want to make sure before calling the ISP.

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How To Check Flv/encoders

Jul 22, 2008

I used this script
[url]

Now, via command line how can I check that ALL these work and are enabled for example? I'm not talking about visually seeing the files there, I mean actually enabled.

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Unsubscore Check

Apr 11, 2008

I recently added ubl.unsubscore.com to my email server. I only have that one and the SpamHaus (Zen) activated.

I am able to see the SpamHaus listed on DNSStuff and on SpamHaus website that the person trying to email me is not listed.

So I have to think that it is ubl.unsubscore.com list. But what domain name can I enter into the browser to check this list? www.unsubscore.com does not work. A little searching led me to lashback, but the IP is not listed there either.

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BGP4 Check

Aug 6, 2008

You know, maybe, how to check if my provider has bgp4?

Via unix command or somnething...

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How Can I Check Logs

Apr 9, 2008

How can I check the logs to see if there are any errors? Can I check this via WHM?

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CPU Usage Check

Nov 25, 2008

Few days ago I had a problem with my httpd. I finally nailed it down and came on a conclusion that my MaxClients were set too low so I had to set it to high number and it seems like that the proble of "Network Timeout" had been resolved but now the problem is still continued. Here is what I think is wrong

Cpu(s): 1.5%us, 0.4%sy, 0.0%ni, 96.7%id, 0.3%wa, 0.3%hi, 0.8%si, 0.0%st
The 96.7%id always stays above 90% is that bad and how do i fix it?

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How To Check Who Is Using MySQL

Jan 29, 2007

I have a problem where mysqld is using 95 - 97% CPU usage all the time.

How can I see what user is causing this ? I have installed mytop but when I use it I get

Quote:

[root@server1 ~]# mytop
Cannot connect to MySQL server. Please check the:

* database you specified "test" (default is "test")
* username you specified "root" (default is "root")
* password you specified "" (default is "")
* hostname you specified "localhost" (default is "localhost")
* port you specified "3306" (default is 3306)
* socket you specified "" (default is "")

The options my be specified on the command-line or in a ~/.mytop
config file. See the manual (perldoc mytop) for details.

Here's the exact error from DBI. It might help you debug:

Access denied for user 'root'@'localhost' (using password: NO)

I really need to track down the culprit!

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How To Check Logfile

Jan 8, 2007

i just don't remember what was the command to check logfile in linux to see what was going on in my server, since i think someone hacked in to my server and i was ddos last couple days.

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Check Limits In A Vps

Nov 29, 2007

as a vps customer, how can i check processor, memory and each others resource limits in my vps which allocated for me?

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Root Kit Check On Vps

May 6, 2007

Am am running through a checklist of to-do's on a new VPS I just received. I haven't used it in a production environment yet.

While doing a root kit check I got these lines back that perturb me.

Checking `bindshell'... INFECTED (PORTS: 465)
Checking `lkm'... You have 103 process hidden for readdir command
chkproc: Warning: Possible LKM Trojan installed

how serious the implications are of those lines? And should I expect this on a machine that has no traffic and is a fresh install?

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Ports Check

Mar 7, 2007

Which command can I verify if a port is opened?

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How To Check Security In My VPS

Jul 11, 2007

I have 1 VPS from vpsland

Plesk 8.1 , how to check my VPS security?

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How To Check If An IP Is Blocked

Jul 15, 2007

One of my hosted user complained that he can't access his website nor he can ping the website. When I asked him to access my 2nd server (same datacenter), it went fine. I could be thinking that my server is blocking his IP.

How do I check if his IP is blocked?

I am using APF+BFD Iptables firewall (i don't know but i hope this make sense)

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Virtuozzo Check Resources

Mar 27, 2009

Is there a way on a Virtuozzo server (via. SSH) to check how much CPU or load/cpu-resources each container is using? Or some other way?

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How Do You Check Your Hosting Speed

Jun 3, 2009

Is there a quick way to check out how fast you are from the web host your buying..

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How To Check Connections To My Server

Jun 24, 2009

There use to be a thread on here but because of the wht hack, it didn't get saved...so now I can't go back to it.

It was a command in ssh that printed out a number of connections. Like 12,000 or something.

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HDD Check On Dedicated Server

Apr 1, 2009

What is the best way to check the HDD on new Dedicated server?

I would like to see if there is a bad sectors, etc.

fsck? or ? what is the full command that would do the job the best.

OS is Centos.

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