DNS Resolution Issues. Whos Fault Is It
Apr 12, 2007
Recently ive gone through lot's of providers, and my latest one computhings.co.uk (was recommended) has recently lost support (their license expired) and my domain is having problems!
I tried a tracert to track the problem and i get an error in resolving the domain name. My DNS servers are set to where they should be, and i can get to the servers via a web browser (ns1/ns2) but when accessing my domain i get a server not found.
Is this my fault or their fault? As if its mine i will hang on and if its theirs im moving servers today!
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Jun 28, 2007
For future reference whats the best way to show whos using up too much resources such as CPU, RAM etc...
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Dec 24, 2007
I want to get a VPS to hold my sites and the websites i build for people.
I'm not sure about what happens if a client uploads something they shouldnt - be it porn, warez or whatever.
As a server owner, do i risk getting in trouble? Or am i simply the contact person .
I can't check every file that people might upload.
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May 19, 2008
Do you consider resolution time guarantee when choosing a host?
What resolution time guarantee does your host offer?
Is one hour resolution ok?
This is what webhostgiant.com offer as their support resolution time.
[url]
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Apr 21, 2008
I have couple of clients using web hosting services for their .in domains. Half of them time it resolves and half of the time it does not. I went to the office of the client and took traceroute / ping reports to main IP + DNS and it resolved fine without any issue BUT the sites does not resolve.
Sometimes it resolves with www but does not work without it and sometimes it works WITHOUT www and does not work with www.
I talked with the Data center and as I guessed they were unable to trace the problem as both resolved fine @ their end and network was also fine.
What can be the problem?
If its .in registry issue then howcome other .in domains works fine @ those PCs but those hosted @ my server.
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Apr 1, 2008
What is the best way to reduce the delay in DNS resolution for vistors to our hosted domains?
- Using multiple servers that spread across different geographic locations?
- Writing a script that contacts major DNS servers and queries our domains, so that they keep this
info in their cache?
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May 21, 2007
Is there a club for hosting companies to belong to that might seek to arbirate when there's a dispute ? The company (in USA) hosting my sites has decided to withdraw support. They say I was wasting their time; I say they were avoiding addressing the problem. I don't want to stay with a company that throws a fit if you criticise them, so it's time to move on. But they have been paid to host my sites, so I reckon I'm due a refund. They are ignoring my e-mails. The sum involved is small, it's just the principal really.
Tim Dawson, Isle of Mull, Scotland
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Feb 28, 2007
I came across: [url]and they have a $75 one time for spam resolution, has anyone actually tried it? I'm having spammer problems at the moment,
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Aug 30, 2007
I end up working on about 5-6 different desktops regularly. I shorthand most of my servers in /etc/hosts so rather than typing www13.domain.com I shorthand it to www13. So rather than try to maintain each of these 5-6 hosts db's (and rather than setting up something more elaborate), I decided to take one of my personal ldap servers, added ou=Hosts,dc=domain,dc=com, and set it up as an ipHost objectclass (with the machine name being the cn, and the IP being ipHostNumber). I then installed libnss-ldap and the ldap client on my machine, editing /etc/ldap.conf by adding the base and uri, /etc/libnss-ldap.conf adding the base, ldap_version, uri, and setting nss_base_hosts to ou=Hosts,dc=domain,dc=com. I then edited /etc/nsswitch.conf and set my hosts: record to include ldap at the end.
When I do getent hosts, the hosts are listed as they should be (ip machinename). However, when I try to ping or resolve any of the machine names, it fails.
getent hosts|grep testldap
24.62.234.23 testldap
ping testldap
ping: unknown host testldap
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Apr 9, 2009
All of a sudden my site gives me this error
Quote:
Warning: file_get_contents() [function.file-get-contents]: php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in /home/nnnnn/public_html/manga/update.php on line 2
Warning: file_get_contents(http://img2.domain.com/robot.php) [function.file-get-contents]: failed to open stream: php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in /home/nnnnn/public_html/manga/update.php on line 2
It was working fine a week ago. I don't believe I changed anything major.
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Aug 12, 2008
We first noticed the issue on July 19th, Backups were taking a while to transfer from our own servers, and we were getting tickets from clients asking why this was happening. At the same time, it took about 4-5 minutes to log into the backup console. Issue seemed to correct itself so that backups were possible, and we assumed that scott would be aware of it and would work to resolve it.
Again on the 29th it slowed completely again. We immediately dispatched an email to their support email asking whats up, gave them detailed information such as access to the script and the output so he could monitor it.
The same day a few hours later we got a response that he would run the script and monitor it.
On the 31st, after not getting an update I asked what was going on. He said he ran the script, it seemed to stall for long periods of time and he would know more in the afternoon.
After not getting an update for ~5 days I asked what was going on and I expressed that i was not happy with the lack of communication/updates ont he situation. He updated me later that day saying that we weren't the only ones being affected. Fair enough, he is working on it. Thats all I wanted to hear.
Now ever since that email I received on the 5th (AUG) it has been up and down and all over the place.
After seeing him post on the forums I sent him a PM (10th August), summed up it was basically saying I had an issue, and I need it fixed. I figured since the PM system is usually pretty good at not losing them that he would see it and respond accordingly, that way there was no chance of it being lost from point A to point B as an email.
Well to this day, no response nor resolution.
I really have exhausted all points of communication, and I want to make it clear that I am not bashing them, when it works it's great. But maybe someone else affected can provide more insight..
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Jun 29, 2009
root@server [/usr/bin]# ffmpeg -i DSCN0377.avi -vcodec libx264 -b 2048k -bt 2048k -acodec libfaac -ab 128k -f mp4 TEST1.mp4
FFmpeg version SVN-r19290, Copyright (c) 2000-2009 Fabrice Bellard, et al.
configuration: --enable-libmp3lame --enable-libvorbis --enable-shared --enable-libx264 --enable-libxvid --enable-libfaac --enable-libfaad --enable-gpl --enable-nonfree --enable-pthreads
libavutil 50. 3. 0 / 50. 3. 0
libavcodec 52.32. 0 / 52.32. 0
libavformat 52.36. 0 / 52.36. 0
libavdevice 52. 2. 0 / 52. 2. 0
libswscale 0. 7. 1 / 0. 7. 1
built on Jun 29 2009 20:47:56, gcc: 4.1.2 20080704 (Red Hat 4.1.2-44)
Input #0, avi, from 'DSCN0377.avi': ....
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Sep 10, 2009
This is regarding WHMCS
Suddenly POP piping stopped working. When I try to execute it manually from bash I get,
root@gui3 [/home/intranet/public_html]# php -q /home/intranet/public_html/pipe/pop.php
<b>POP Import Log</b><br>Date: 10/09/2009 09:52:00<hr>Host: mail.***********.br<br>Email: suporte@***********.br<br>Email Count: 845<hr>Segmentation fault
root@gui3 [/home/intranet/public_html]#
Ive tried to recompile PHP and updated it to the latest PHP cPanel version (5.2.10). But the error is the same.
Ive contacted WHMCS support and they only told me to recompile PHP.
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Nov 9, 2009
Something just went wrong with my server today
login as: teddy
password: xxxxxxxx
[teddy@server1 ~]$ sudo su -
Segmentation fault
[teddy@server1 ~]$ df
Bus error
[teddy@server1 ~]$ crontab -l
Segmentation fault
My website seems to be showing me lots of PHP & SQL errors.
For example, my live-chat shows me:
Warning: session_start() [function.session-start]: open(/tmp/sess_8aa74272d583973018e8f0805a796df2, O_RDWR) failed: Read-only file system (30) in /home/polar/domains/.../auth.php on line 20
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Jun 24, 2007
just now I perform a sar -B on my dedicated server, memory usage and server load is below, but here is the output I have after perform a sar -B
I dont quite undestand the stat given, what is the fault/s means ? Is it my system having memory issue ?
Linux 2.6.9-55.EL s06/24/2007
12:00:01 AM pgpgin/s pgpgout/s fault/s majflt/s
12:10:01 AM 0.00 13.43 12322.04 0.00
12:20:01 AM 0.00 5.88 486.10 0.00
12:30:01 AM 0.00 3.07 65.81 0.00
12:40:01 AM 0.00 5.30 410.52 0.00
12:50:01 AM 0.00 5.67 413.37 0.00
01:00:01 AM 0.00 3.55 52.48 0.00
01:10:01 AM 0.00 6.36 408.92 0.00
01:20:01 AM 0.00 7.90 561.89 0.00
01:30:01 AM 0.00 3.27 73.72 0.00
01:40:01 AM 0.21 7.30 422.37 0.01
01:50:01 AM 0.56 9.62 440.75 0.02
02:00:01 AM 7.01 18.75 142.09 0.02
02:10:01 AM 0.06 8.12 535.84 0.00
02:20:01 AM 0.00 6.40 400.41 0.00
02:30:01 AM 0.00 4.73 330.87 0.00
02:40:01 AM 0.03 7.32 413.17 0.00
02:50:01 AM 0.00 7.11 407.45 0.00
03:00:02 AM 0.02 7.84 69.48 0.00
Average: 0.44 7.31 997.17 0.00
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May 20, 2007
I'm getting this error message when logwatch run,
--------------------- Kernel Begin ------------------------
WARNING: Segmentation Faults in these executables
httpd : 9 Time(s)
---------------------- Kernel End ------------------------- "
Have recompile apache twice, but it doesn't help.
I'm running this,
root@host [~]# php -v
PHP 4.4.6 (cli) (built: May 15 2007 12:54:50)
Copyright (c) 1997-2007 The PHP Group
Zend Engine v1.3.0, Copyright (c) 1998-2004 Zend Technologies
with Zend Extension Manager v1.0.10, Copyright (c) 2003-2006, by Zend Technologies
with Zend Optimizer v3.0.1, Copyright (c) 1998-2006, by Zend Technologies
and this is my server,
Processor: Dual Xeon E5310 Quad Core (Clovertown)
Memory: 4GB DDR Registered ECC
Hd1: Dual 73GB SCSI / Hardware Raid 1
I have had this segmentation problem since the first day I got my server.
Need advice what to do about this?
Friend of mine was talking about upgrade to php version 5, but I'm not sure thats the way to do it. Having about 40 accounts/domains and I'm not sure that web sites will work with php 5.
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Feb 16, 2007
When I attempt to execute:
./configure --prefix=/usr/local/php --with-apxs2=/usr/local/apache2/bin/apxs --with-mysql=/usr/local/mysql
I get the following error:
configure: error: Try adding --with-zlib-dir=<DIR>. Please check config.log for more information.
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Jun 27, 2008
-bash-3.00# service named restart
Stopping named: [ OK ]
Starting named: /etc/init.d/named: line 46: 14206 Segmentation fault
Using Plesk 8 on a vps / linux
/var/log/messages shows no errors but zones loaded after vps reboot.
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Apr 2, 2008
One of our 3Ware RAID controllers is showing a battery backup unit BBU temperature TOOHIGH error, and the status of the BBU controller is now in FAULT.
I presume the while BBU unit will need to be replaced, but what is the immediate effect or consequences of leaving the BBU in this condition?
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May 11, 2009
Trying to enable xcache on my cpanel, centos server (suphp *not* enabled)
Followed this guideline
[url]
Xcache shows up in php -m output, however I get this output as well
Code:
root@server [/tmp]# php -v
PHP 5.2.8 (cli) (built: Jan 5 2009 16:23:03)
Copyright (c) 1997-2008 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2008 Zend Technologies
with the ionCube PHP Loader v3.1.34, Copyright (c) 2002-2009, by ionCube Ltd., and
with Zend Extension Manager v1.2.2, Copyright (c) 2003-2007, by Zend Technologies
with Zend Optimizer v3.3.3, Copyright (c) 1998-2007, by Zend Technologies
Segmentation fault (core dumped)
In the /usr/local/lib/php.ini file I had this portion setup before the Zend portion...
Code:
[xcache-common]
extension = xcache.so
[xcache.admin]
xcache.admin.auth = On
xcache.admin.user = ""
xcache.admin.pass = ""
[xcache]
; ini only settings, all the values here is default unless explained
; select low level shm/allocator scheme implemenation
xcache.shm_scheme = "mmap"
; to disable: xcache.size=0
; to enable : xcache.size=64M etc (any size > 0) and your system mmap allows
xcache.size = 128M
; set to cpu count (cat /proc/cpuinfo |grep -c processor)
xcache.count = 4
; just a hash hints, you can always store count(items) > slots
xcache.slots = 8K
; ttl of the cache item, 0=forever
xcache.ttl = 0
; interval of gc scanning expired items, 0=no scan, other values is in seconds
xcache.gc_interval = 0
; same as aboves but for variable cache
xcache.var_size = 0M
xcache.var_count = 1
xcache.var_slots = 8K
; default ttl
xcache.var_ttl = 0
xcache.var_maxttl = 0
xcache.var_gc_interval = 300
xcache.test = Off
; N/A for /dev/zero
xcache.readonly_protection = Off
; for *nix, xcache.mmap_path is a file path, not directory.
; Use something like "/tmp/xcache" if you want to turn on ReadonlyProtection
; 2 group of php won't share the same /tmp/xcache
; for win32, xcache.mmap_path=anonymous map name, not file path
xcache.mmap_path = "/dev/zero"
; leave it blank(disabled) or "/tmp/phpcore/"
; make sure it's writable by php (without checking open_basedir)
xcache.coredump_directory = ""
; per request settings
xcache.cacher = On
xcache.stat = On
xcache.optimizer = Off
[xcache.coverager]
; per request settings
; enable coverage data collecting for xcache.coveragedump_directory and xcache_coverager_start/stop/get/clean() functions (will hurt executing performance)
xcache.coverager = Off
; ini only settings
; make sure it's readable (care open_basedir) by coverage viewer script
; requires xcache.coverager=On
xcache.coveragedump_directory = ""
[Zend]
zend_extension_manager.optimizer=/usr/local/Zend/lib/Optimizer-3.3.3
zend_extension_manager.optimizer_ts=/usr/local/Zend/lib/Optimizer_TS-3.3.3
zend_optimizer.version=3.3.3
extension=pdo.so
extension=pdo_sqlite.so
extension=sqlite.so
extension=pdo_mysql.so
allow_url_include = On
; Memcache Section
extension = memcache.so
memcache.allow_failover = 0
When I search for "zend_extension" this is the result:
Code:
; Directory in which the loadable extensions (modules) reside.
extension_dir = "/usr/local/lib/php/extensions/no-debug-non-zts-20060613"
zend_extension="/usr/local/IonCube/ioncube_loader_lin_5.2.so"
zend_extension_ts="/usr/local/IonCube/ioncube_loader_lin_5.2_ts.so"
zend_extension="/usr/local/lib/php/extensions/no-debug-non-zts-20060613/xcache.so"
If I move the xcache line to the first line, before the ioncube one, I get this error:
root@server [/usr/local/lib/php/extensions/no-debug-non-zts-20060613]# php -m
Segmentation fault (core dumped)
Quote:
root@server [/usr/local/lib/php/extensions/no-debug-non-zts-20060613]# ls -lh
total 290M
drwxr-xr-x 2 root root 4.0K May 11 11:48 ./
drwxr-xr-x 5 root root 4.0K Sep 17 2007 ../
-rw------- 1 root root 144M May 11 11:48 core.9588
-rw------- 1 root root 144M May 11 11:48 core.9592
-rwxr-xr-x 1 root root 495K Jan 5 16:34 eaccelerator.so*
-rw-r--r-- 1 root root 3.1K Jan 5 22:04 error_log
-rwxr-xr-x 1 root root 142K Sep 17 2007 mailparse.so*
-rwxr-xr-x 1 root root 313K Jan 5 20:43 memcache.so*
-rwxr-xr-x 1 root root 124K Jan 5 16:23 pdo_mysql.so*
-rwxr-xr-x 1 root root 265K Jan 5 16:23 pdo.so*
-rwxr-xr-x 1 root root 1.4M Jan 5 16:23 pdo_sqlite.so*
-rwxr-xr-x 1 root root 989K Jan 5 16:23 sqlite.so*
-rwxr-xr-x 1 root root 323K May 11 11:31 xcache.so*
My config:
PHP 5.2.8
Zend Opt 3.3.3
suphp disabled
Apache 2.2
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Oct 22, 2007
We are having major problems on one of our servers.
We were running general commands like 'grep' and then this error message came up:
[root@~]# cat /etc/userdomains | grep test
Segmentation fault (core dumped)
[root@~]#
Then it went down and has not come back up online.
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Mar 4, 2008
if MRGT graph to mesure BW can be config to show faulty results? like 20% more than what i am actualy using?
The reason i am wondering is because i have a server which is an image hosting and running lighttpd as webserver. The only thing consumming BW now is lighttpd for images.
While the status page of lighty show i am using about 4.2Mbytes ~ 32-34mbits then the BW graph of data center show that i am using something like close to 52mbits.
Please see the pictures below and let me know what you guys think.
The BW graph here is Past 4 Hours (1 minute average)
and lighty screenshot is real time.
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Sep 5, 2008
I'm transcoding videos on a web server using ffmpeg and can successfully transcode some video formats but am having a few issues.
One of them is that I get a "Segmentation Fault" when trying to transcode a video in h.264 codec. I can't find much by searching and am wondering if that's a codec issue, or something else.
any experience with ffmpeg?
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May 28, 2013
I recently build an apache server in Solaris10 SRAC server and enabled the following modules.
LoadModule foo_module modules/mod_foo.so
LoadModule jk_module modules/mod_jk.so
LoadModule weblogic_module modules/mod_wl_22.so
LoadModule rewrite_module modules/mod_rewrite.so
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadFile "/usr/lib/libxml2.so"
LoadModule xml2enc_module modules/mod_xml2enc.so
LoadModule proxy_html_module modules/mod_proxy_html.so
Post that I tried a simple Reverse Proxy setup to confirm the apache work fine as a reverse proxy
### Proxy Setup ####
ProxyVia On
ProxyPass /console http://<apps-host>:8980/console
<Location /console>
ProxyPassReverse http://<apps-host>:8980/console
</Location>
Post these changes when I try starting apache I get the error - Segmentation Fault - core dumped
Checked the Error Logs it shows -
[Mon May 27 14:09:24 2013] [notice] child pid 29964 exit signal Segmentation fault (11)
[Mon May 27 14:09:32 2013] [notice] child pid 29963 exit signal Segmentation fault (11)
[Mon May 27 14:11:14 2013] [notice] caught SIGTERM, shutting down
[Mon May 27 14:11:19 2013] [warn] RSA server certificate CommonName (CN) `BUNTY RAY' does NOT match server name!?
[Mon May 27 14:11:19 2013] [warn] No JkLogFile defined in httpd.conf. Using default /opt/apache-2.2.24/logs/mod_jk.log
[code]....
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May 31, 2009
we have little problem on our server - from some time it starts reporting some errors:
kernel: spamd[6479]: segfault at 9a16000 ip 467840ac sp bffe9b5c error 6 in libc-2.5.so[46713000+13e000]
kernel: webalizer[12318]: segfault at 81a80cc ip 080d9279 sp bff2f230 error 4 in webalizer[8048000+b2000]
kernel: spamd[6515]: segfault at 9cbb000 ip 467840ac sp bffe9b5c error 6 in libc-2.5.so[46713000+13e000]
kernel: pure-quotacheck[16285]: segfault at bf3c9ff8 ip 46769d76 sp bf3c9fec error 6 in libc-2.5.so[46713000+13e000]
kernel: php[14910]: segfault at bf727da0 ip 080b0edc sp bf727d30 error 6 in php[8048000+64d000]
errors appear 2-3 times every 10min and always in this 4 programs: webalizer, php, spamd, pure-quotacheck
and second thing there is problem with some file caching or sth - for example when we restarts named it reports:
/etc/named.conf:23564: open: /var/named/slaves/slaves.named.conf: file not found
file of course exist but funniest thing is when we remove this line from named.conf and tries restart it, error appear again, even when this line is empty in named.conf and there is no other include of this file
even after server restart (without this include in named.conf) it still reports this error
server config: C2Q Q9550, 8GB ram, 2x500GB in hw Raid1, Centos 5.3 32bit, cPanel
maybe someone have any idea what it could be, and what else we can check ?
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Jan 16, 2015
Parallels Plesk autoinstaller emailed me 03:34 to confirm that Parallels Plesk was successfully updated, but ever since then /var/log/httpd/error_log has entries every 5 minutes stating 'child pid xxxxxx exit signal Segmentation fault (11)'.
How to diagnose?
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