Ping Time Significant

Sep 16, 2008

We're considering moving from our current vps host with a California datacenter to a host with their datacenter in Chicago for support reasons... this will mean going from 15 ms ping times to around 75 ms. All of our clients will be running their own wordpress installations...and most of them are on the west coast as well... is the ping time difference significant or not?

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DNS :: Connect Time And Host Ping Time?

Jan 6, 2008

I got report from webceo that I have some issues. May someone help me fix this?

DNS Lookup: 0.22 sec
Connect time: 0.33 sec
Host ping: 0.10 sec

That mean too slow with the other sites!

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Is Ping Time Important

Apr 12, 2009

When I talked with my friends who are into computer stuff, they'd say that it is important that the provider that I am about to host my site with, has good ping response so that my site will load faster.

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USA To Europe :: Latency Ping Time :: Lower Than 100ms

Mar 9, 2008

to buy a good dedicated server to serve my clients here. So im looking from advices on a good hosting company USA based.

But i have been ping several major hosting USA company (like, mediatemple, theplanet, etc...) and i still didnīt get a Ping under 130ms.

If i ping a good EU company i get 60 to 90ms.

I know that the distance is bigger but,

Does anyone knows any good USA hosting company with a Ping to Europe lower than 100ms?

My budjet goes up to 800 $/moth

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15ms Ping Vs 40ms Ping Vs 170ms Ping

Nov 2, 2008

15ms ping vs 40ms ping vs 170ms ping

Which you think is still acceptable for a website?

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Compiling Mod_security With PCRE (significant Performance Increase)

Jan 27, 2007

From the ModSecurity manual:

Quote:

By default ModSecurity relies on the regular expression library built into Apache for pattern matching.
This works well with Apache 2.x but not so much with Apache 1.x. The Apache 1.x regular expression
engine is several times slower. Since 1.9.2 it is possible to compile ModSecurity for Apache 1.x against
an external regular expression library (PCRE, [url] the same library used in Apache 2.x)
and achieve significant performance increase. This is achieved with the USE_PCRE compile-time flag.

If you have PCRE already installed on your system it may be sufficient to compile ModSecurity like this:

Code:
# <apache1-home>/bin/apxs -DUSE_PCRE -cia mod_security.c

Ok, so I tried and got this error:

Code:
[root@servidor1 customapache]# apxs -DUSE_PCRE -cia mod_security.c
gcc -DLINUX=22 -DHAVE_SET_DUMPABLE -I/usr/include/gdbm -DMOD_SSL=208128 -DUSE_HSREGEX -DEAPI -fpic -DSHARED_MODULE -I/usr/include/apache -DUS
E_PCRE -c mod_security.c
mod_security.c:37:18: pcre.h: No such file or directory
mod_security.c: In function `my_pregcomp':
mod_security.c:929: error: `PCRE_CASELESS' undeclared (first use in this function)
mod_security.c:929: error: (Each undeclared identifier is reported only once
mod_security.c:929: error: for each function it appears in.)
mod_security.c:929: warning: assignment makes pointer from integer without a cast
mod_security.c: In function `my_regexec':
mod_security.c:940: error: `PCRE_ERROR_NOMATCH' undeclared (first use in this function)
apxs:Break: Command failed with rc=1
I double checked if I have PCRE installed:

Code:
[root@servidor1 customapache]# yum search pcre
pcre.i386 4.5-3.2.RHEL4 installed
Matched from:
pcre
Perl-compatible regular expression library.
PCRE has its own native API, but a set of "wrapper" functions that are based on
the POSIX API are also supplied in the library libpcreposix. Note that this
just provides a POSIX calling interface to PCRE: the regular expressions
themselves still follow Perl syntax and semantics. The header file
for the POSIX-style functions is called pcreposix.h.
[url]
And I even located the /lib/libpcre.so.0.0.1 and copied it to /usr/lib/apache/libpcre.so, with no sucess. Got the same error.

Has anyone sucessfully compiled mod_security with PCRE and can help me?

More info on this slow down issue here: [url]

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Squirrelmail: Email Arrives With Different Time Than Server Time

Nov 11, 2008

This is a rare issue i have on a RHEL 5.2 + cPanel server.

Server time is:

Tue Nov 11 17:02:51 CST 2008
Squirrelmail time show:
Code:
Last Refresh:
Tue, 5:02 pm

So, that is correct too..

But email arrives with -4 hours time, example:

webmaster@xxx.com 1:03 pm testing email

I already rebooted httpd, exim, and imap server, and the server itself too.. and problem stills.

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Server Response Time :: Network Time Out

Sep 25, 2008

I can't get access to a certain site. I always get the page with:

network time out - server at *** takes to long to respons. More people have noticed this and apparently it only happens to people with certain specific providers. And not all the time. Some times they DO get access eventy to they belong to the same ISP. So I guess an ISP isn't blocking access to it otherwise it would be permenantly/The site administrator insists that certain ISP's are blocking his site. He's hosting it on his own server. The domain belongs is registered at namecheap.com.

If an ISP is blocking this site (if that's possible?), that would lead to that 'network timeout' page wouldn't it?

What is the most likely reason for getting a timeout page anyway?

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Daily, Time To Time Cpu Load

Aug 9, 2007

I have a dedicated server specs: AMD 3500+ 64 Bit CPU, 1 GB Ram, 160 GB Sata Drive. For 1 month, CPU load average reaches 40-50 value. This happens about 5-6 times in a day. When I stop httpd service for 30 seconds everything goes normal. I think this is not a DoS attack because it comes systematic, I dont believe no one makes this regularly except bots.

Maybe its a system service or a cronjob but it stops when I turn off httpd service?
How can I be sure about what's making this regularly load?

I also did set up a script which mail me when load average of system goes crazy and restart httpd service. But instant restart is not working to stop load increase.

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Apache :: Server Going Down From Time To Time

Feb 6, 2013

The server is going down from time to time, every 12 days or so the site hosted there is no longer accesible, everything starts with the site slowing don and down and then is not longer reachable, what we do is to request a power cycle, and with this we start all over again till next power cycle, so on so on, of course, here are my server details and more info on this:

- MySQL - 5.1.41-3ubuntu12.10
- Apache - 2.2.14-5ubuntu8.4
- PHP - 5.3.2-1ubuntu4.9
- operating system: Ubuntu Server 10.04 LTS

After some time emailing the support guys to barely check about what's going on, we received an email with a few things:

1.- found a few errors that likely would cause issues with Apache. The first error is:
[Mon Feb 04 05:03:10 2013] [error] mod_fcgid: fcgid process manager died, restarting the server and the next error is:
[Mon Feb 04 14:32:34 2013] [error] server reached MaxClients setting, consider raising the MaxClients setting ...

Both these errors seem to indicate that you have a process that is running out of control on your server. We were unable to determine what script on your site is running caused your connections to be maxed out however it does appear that before these errors were generated there was a WordPress plugin referenced in your access logs...

2.- Additionally during our review we did find that your error log for mercadodedinerousa.com is 45 GB's which is excessively large and can cause problems when Apache is trying to write a such a large file.

3.- The majority of the errors being logged are:
[Wed Feb 06 12:12:31 2013] [error] [client 200.76.90.5] Options FollowSymLinks or SymLinksIfOwnerMatch is off which implies that RewriteRule directive is forbidden: /var/www/vhosts/mercadodedinerousa.com/httpdocs/index.pl, referer: [URL]

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Can Ping But Cannot Go In

Jun 6, 2008

My server DC technician change the cable to another switch in another rack. all in sudden, my server went 'offline'.

the weird thing is,
I can ping the server IP

When I plug my KVM,
I can ping google.com from my server

But when I lynx google.com, it keep saying
HTTP requests sent; waiting for response._

When I open my putty and SSH, it keep waiting.

When I try to ssh from another server, it keep waiting
$ ssh school@xxx.xxx.xxx.xx
[nothing happen]
$ ping xxx.xxx.xxx.xx
PING xxx.xxx.xxx.xx (xxx.xxx.xxx.xx) 56(84) bytes of data.
64 bytes from xxx.xxx.xxx.xx: icmp_seq=1 ttl=63 time=1.10 ms
64 bytes from xxx.xxx.xxx.xx: icmp_seq=2 ttl=63 time=0.864 ms
64 bytes from xxx.xxx.xxx.xx: icmp_seq=3 ttl=63 time=0.854 ms

- I can ping my server from MS DOS
- I can ping my server from Iptools.com
- I can ping my server from another server

But..
- I cannot ssh into my server
- I cannot ssh into my server from another server

Inside my server..
- I can ping google.com, yahoo.com, other servers
- But I cannot lynx and open all websites

When I restart network, it shows [refer attachment] captured from my KVM

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What Is PING?

Oct 23, 2008

PING

Whats that?

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IP (ping)

Feb 5, 2007

after my server down, i ask for reboot then the server up again.

but i cant access SSH via my main ip, but i can access SSH via second ip. when i ping main ip, all is request time, but my second ip can ping.

ok main ip cannot use, so i use second ip the main problem come i cant do yum update kernel, will show this error

Quote:

Setting up Update Process
Setting up repositories
Cannot find a valid baseurl for repo: update
Error: Cannot find a valid baseurl for repo: update

when i try run socks5 proxy in my server, it running, but when i use it for my personal pc, the socks5 it not run....just show proxy is offline.

when i do wget some direct links

it always show, but never download

Quote:

[root@xxxx ~]# wget ftp://ftp.is.co.za/mirror/centos/4.4...4E.12.i386.rpm
--11:39:24-- ftp://ftp.is.co.za/mirror/centos/4.4...4E.12.i386.rpm
=> `squid-2.5.STABLE6-3.4E.12.i386.rpm'
Resolving ftp.is.co.za...

so i try to go check resolv.conf, but don have problem, my other 2 same server also dont have problem with this dns server.

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Ping My VPS

Jan 13, 2007

I just moved from PowerVPS to EuroVPS, being located in Europe myself, and was of course hoping for much better ping times. Also EuroVPS advertise themselves with a 30ms ping to most of Europe.

Anyway after my VPS was installed I compared the pings:EuroVPS (85.17.48.162) average ping: 335ms
PowerVPS (69.65.106.19) average ping: 129ms

335ms is of course ridiculously high, and after writing them a support ticket they told me it's probably a latency problem with my ISP

Can you please post the ping you get for 85.17.48.162 (preferably people located in Europe)?

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Ping In Nagios

Mar 25, 2009

I have configured Nagios on my network 10+ Servers (Linux+Windows) now when i check through http://localhost/nagios everything is ok but only ping command is giving following message :-

Unknown
bin/ping -n -U -w 10 -c 5 x.x.x.x
CRITICAL - Could not interpret output from ping command

and mail me "server down " message

So what is the issue ?

I am able to run this command through command line

./check_ping -H {server} -w 100.0,20% -c 500,50% -p 5
PING OK - Packet loss = 0%

./check_ping -H x.x.x.x -w 300.0,80% -c 500.0,100% -p 5
PING OK - Packet loss = 0%

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OpenVZ - HN Can't Ping VE

Jul 13, 2008

I'm running my own OpenVZ server with a few VPS's running on it and have a small network issue.

I can't ping any VE from the HN. All the other networking is working ok (strangely I can ping the HN from the VE) apart from this. It's a simple setup with one network card connected to the internet.

OpenVZ the latest stable version running on CentOS 5.2

I'm pretty sure it's not a firewall problem but is something to do with arp or routing and one of the settings in sysctl.conf

Has anyone else seen this?

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Better The Ping The Better The Host

Feb 10, 2009

Does it matter?

I did a few tests

Pinging lunarpages.com [74.50.4.210] with 32 bytes of data:
Average = 191ms
Pinging hostmonster.com [74.220.195.150] with 32 bytes of data:
Average = 191ms
Pinging godaddy.com [97.74.104.201] with 32 bytes of data:
Average = 175ms
Pinging rackspace.com [72.32.191.88] with 32 bytes of data:
Average = 150ms
Pinging siteground.com [209.85.102.36] with 32 bytes of data:
Average = 148ms
Pinging hostgator.com [74.54.219.185] with 32 bytes of data:
Average = 147ms
Pinging ipowerweb.com [66.96.130.200] with 32 bytes of data:
Average = 113ms
The pages load really fast @ ipowerweb

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Ping Tests

May 5, 2009

i've only ever used pings to test if a host is up or down.

But what other information am i looking for in ping tests. For e.g., the time in ms the TTL etc etc?

How can i test pinging my server from different locations around the world?

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Ping Problem In Vps Xen

Jul 8, 2008

i install one xen guest ( centos5)

i run yum update and result is :
-bash-3.1# yum update
Loading "installonlyn" plugin
Setting up Update Process
Setting up repositories

Could not retrieve mirrorlist http://mirrorlist.centos.org/?releas...86&repo=extras error was
[Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Error: Cannot find a valid baseurl for repo: extras

i use of middle config :
/etc/sysconfig/network-scripts/ifcfg-eth0 TYPE=Ethernet
DEVICE=eth0
BOOTPROTO=static
BROADCAST=192.168.0.255
IPADDR=192.168.0.13
IPV6ADDR=
IPV6PREFIX=
NETMASK=255.255.255.0
NETWORK=192.168.0.0
ONBOOT=yes /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=myhost.l3i.ca
GATEWAY=192.168.0.1 /etc/resolv.conf (DNS resolver)
nameserver 4.2.2.1

nameserver 4.2.2.2

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Ping Is Down, Http Is Up

Jul 23, 2008

My sites are up when I go to http and there is no slowdown but my monitors (panopta and pingdom) say that there is an outage in ping (only in ping, http is up). I tried pinging the server and there are packet loss up to 100% but the site is still up. I also used other online pinging tools (all-nettools.com, dnsstuff.com, etc.) and host unreachable.

I tried contacting the provider but they say there are no network problem at this time. So I found this other site that's also hosted on the same provider and I can access their site but fails on ping.

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Selinux (ping)

Jul 26, 2008

My server ping keeps disconnecting

However my ssh & website is smooth running!

When i type "service iptables stop", the ping runs just smoothly.

I have CSF installed in the server, like any other server using default configurations. I believe it has something to do with selinux? (or not?)

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Test PING

Oct 26, 2008

i think 216.245.208.x and 216.245.215.x DOWN, but limestonenetworks tell me :"problems well outside of our network, and I would highly suggest contacting your ISP for support on this matter" ....

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Apache Ping

May 27, 2007

Must an IP address have to be pingable for apache to be seen.

I've set up an apache server at home and I noticed that if I block ping requests, no one can see i externally.

If I enable ping requests people can visit my site/server.

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Cannot Ping Ssh To Other Server

Mar 11, 2007

I have 2 CPanel servers. I wanted to transfer multiple accounts via WHM but it gives me error that I cannot SSH into the other server.

I tried to ping the 2nd server from 1st server and it gives me:
root@s [~]# ping xxx.xxx.xxx.7
PING xxx.xxx.xxx.7 (xxx.xxx.xxx.7) 56(84) bytes of data.
ping: sendmsg: Operation not permitted
ping: sendmsg: Operation not permitted
ping: sendmsg: Operation not permitted
ping: sendmsg: Operation not permitted
cping: sendmsg: Operation not permitted

I added both server IP into allowed list inside my APF firewall on each server as well.

I rebooted both server earlier before, but it is still not solving my problem.

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Ping Request

Jul 25, 2007

Can I have some of you ping 24fans.net and let me know what your results are? Also where you're located would be good.

My ISP is being crappy and my dsl line is basically down ever few minutes. They're supposed to fix it tomorrow.

My current results are:

Reply from 70.84.145.91: bytes=32 time=66ms TTL=51
Reply from 70.84.145.91: bytes=32 time=59ms TTL=51
Reply from 70.84.145.91: bytes=32 time=65ms TTL=51
Reply from 70.84.145.91: bytes=32 time=58ms TTL=51

This doesn't really have anything to do with my dsl being crappy, but rather I'm just curious as to what kind of responses people are getting around the world.

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Can't Ping To The Server But Can Log In Ssh

Jun 21, 2007

I have a problem with my server, that i can't not ping

Quote:

[root@server apf-0.9.6-2]# ping yahoo.com
ping: unknown host yahoo.com

But i can log in the ssh. i just installed apf, i check conf.apf to made sure there are port 80, but it still can't ping.

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1and1 Server Ping

Oct 7, 2009

So I'm wondering what if anything I can do to get a better ping from my 1and1 server.

It's located in Wayne, PA and my ping floats around 70ms and I'm in South Lake Tahoe, CA. I only ask because there are servers with Peer1 hosted in New York, NY that give me a ping around 20ms.

Thanks for any help or advice.

Its a Windows Server 2008 Web Box.

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Why Can Ping And Tracert? But Can't Access

Aug 20, 2009

A website,which i can't access,but i used the ping and tracert instruct. the result tell me the IP and route is right.later,a use a Proxy site to access that site,it can. who knows the reason?

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Ping And Traceroute Executables

Aug 13, 2008

I installed net query tool from this site
http://virtech.org/tools/

They say in order for ping and trace to work, you must chmod those executables on the server itself to 755. Is this safe or a security risk? The odd thing is, ping and trace works fine from dnsstuff.com or any other network tool site.

What is the location of those executables?

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Ping In Vlans Not Working?

Aug 10, 2008

I have two servers both in a same vlan. Both may access Internet and be acceessed from Internet I setup db server and web server internal IP each as follows:

step 1: on web server:

vi /etc/sysconfig/network-scripts/ifcfg-eth0:0

add following:

DEVICE=eth0:0
BOOTPROTO=static
BROADCAST=192.168.1.255
IPADDR=192.168.1.5
NETMASK=255.255.255.248
NETWORK=192.168.1.0/24
ONBOOT=yes
TYPE=Ethernet

save and /etc/init.d/network restart

step 2: on db server:

vi /etc/sysconfig/network-scripts/ifcfg-eth0:0

add following:

DEVICE=eth0:0
BOOTPROTO=static
BROADCAST=192.168.1.255
IPADDR=192.168.1.10
NETMASK=255.255.255.248
NETWORK=192.168.1.0/24
ONBOOT=yes
TYPE=Ethernet

save and /etc/init.d/network restart

I used ifconfig to check both status, both of them are up. both of them may ping google, but when I try to ping their each other through internal IP, nothing returns.

I used command tracert to follow, found all packages were sent to Internet rather than an internal IP.

My host tells me to do it by making NAT, I have no idea on it. Anyone may help me out on how to do with NAT?

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