Is there some sort of rating guide (or site) that compares/rates performance and reliability of web hosts.
I just signed up with namecheap and the first three days were great but now it seems to be going down hill.
I've seen other sites with lists but they seem to be advertiser biased.
What does this string do? I copy and paste it into my SSH Shell and i get ip addresses and numbers next to them.
Each number means one connection?
netstat -plan|grep :80|awk {'print $5'}|cut -d: -f 1|sort|uniq -c|sort -nk 1
Hey how would rate hostgator and liquidweb support on a scale of 5.
View 14 Replies View RelatedAs a personal project I've recently began thinking about setting up a CDN (sort of) with my various servers around the world. Basically, what it will do is.. From one 'management' point or portal (you can assume one physical server), each user can update/create their webpage there..
From that main node, it will have to replicate in REAL TIME:
a) userdir (public_html etc.)
b) mysql db's (circular mysql replication?)
c) Any updates to their apache.conf, php.ini etc..
Now I've been looking into several options.. drbd seems to be one that a lot of people suggest for the actual data sync, but I'm wary of implementing something like that outside of a local private LAN. I've also looked into rsync/unison which may work.. I'm just throwing this out there to see what people have tried and are using.
DNS will be handled by a GeoIP/Maxmind bind patch, and closest server will be given by my DNS servers. Closest 'mirror' of the user's site will be served via that hostname.
Anyone done this before or tried? The actual caching part of CDNs and etc. I'm thinking I could always just deal with via squid later, but for now the main guts is what I'm concerned with.
I have a dedicated server which I access via remote desktop.
The firewall is not enabled. What kind of security should I have on my server?
Ive read that if I enable Windows Firewall my remote desktop connection will be blocked & this will mean me having to contact the server company via phone etc.
where I can find a Cpanel DNS only installation guide?
View 2 Replies View RelatedI currently own my own hosting company using another companies servers, which is good, and I've learned a lot of the ins and outs of hosting, but there's a great deal I need to learn before I start Hosting using my own servers. Can anyone provide some good resources or books that might help me get on with my mission?
View 5 Replies View RelatedSo a few days ago we had the wonderful experience of migrating Virtual Private Servers from HyperVM to Virtuozzo. After spending endless hours attempting to migrate with vzmigrate, vzp2v and rsync we were getting very frustrated and were just about to give up. With this we decided to contact our datacenter SoftLayer who usually is able to help out. Like always they managed to rise to the challange and save the day providing us with a solution thay may not have been the best, but probably the only one. We must have searched the entire Internet looking for guides and after we found out a solution we knew it had to be posted so that the frustration we went through would never have to happen again. While this solution is a little timely and requires some work it actually isn't as bad as it sounds. Also we have created a little shell scripts that does a good amount of the migration for you. Below I have made step by step instructions so that there will no longer be "no answer" to this question. Also just to let you know we contacted Parallels and unfortunatly we were told that "I can not find anything in our knowledgebase". Basiclly useless support... they regurgiate their online knowledgebase to you. So below is the guide.
Pre-Requisites:
1. Download the Migration Kit zip that includes the shell scripts for the migration.
Migration Kit Download: [url]
2. You must create a new container in Virtuozzo for each HyperVM VPS that you would like to migrate. You MUST use the same VEID and I you need to keep the hostname the same. Also the OS TEMPLATE you pick DOES NOT MATTER!
If you are copying a customer HyperVM template don't worry cause the OS Template has no effect as far as I know. We transfered 30+ VPS's and the OS TEMPLATE made no difference.
3. Stop the container you created and mount it.
Code:
# vzctl stop <VEID>
#vzctl mount <VEID>
For LIVE MIGRATION SKIP TO STEP 4b.
4a. Stop the VPS on the source server (HyperVM) and mount it.
Code:
# vzctl stop <VEID>
#vzctl mount <VEID>
4b. Leaving the VPS running while migrating has a risk of posible database corruption. During our migration we did it this way and we experienced no issues so I think it is safe to say that in rare cases there may be problems but usually not.
5. Unzip the Migration Kit and be inside the folder where it was unziped.
6. Execute the shell script.
Code:
./migrate.sh <IP-ADDRESS>
IP-ADDRESS = the IP Address of the source VPS Node
7. Enter the CTID when the prompt requests it. (CTID = VEID)
8. Enter the root password for the server you are migrating from.
9. The script runs inside a screen session so to back out of it to do other things or start another migration you must hit:
Code:
CTRL + A + D
To list all the screens you have open.
Code:
# screen -ls
To enter a screen session
Code:
# screen -r SESS-ID
SESS-ID = the numbers before the period listed when you list all the open screens.
10. Once the migration is completed a broadcast message will alert you. Also if you check /var/log/migrate/migrate.log will contain all the migrations that have completed.
11. Once a migration has completed you must unmount the VPS and start it.
Code:
# vzctl umount <VEID>
# vzctl start <VEID>
If everything went "ok" than your VPS should start up without issues and should be just like it was on the old server. Lastly I would like to give credit to SoftLayer for the method of migration. Thanks again SoftLayer
I really hope I'm just going batty with sleep deprivation, because this is making no sense to me. Before I clobber my poor provider with management requests, I want to see if this is typical behavior or not. I am able to send messages through my SMTP server from my laptop without using any authentication at all. It doesn't matter whether I'm using a client (tested Mail.app and Mozilla Thunderbird) or whether I'm going in via telnet. A typical session might look like this (addresses obfuscated):
asdfasdfasdf:~ ###$ telnet mail.fakedomainname.com 25
Trying ##.##.##.## ...
Connected to mail.fakedomainname.com.
Escape character is '^]'.
220 fakedomainname.com ESMTP Exim 4.67 Wed, 30 Jan 2008 00:56:03 -0800
HELO [192.168.2.1]
250 fakedomainname.com Hello reverse.verizon.net [##.##.##.##]
MAIL FROM:<nonexistentuser@fakedomainname.com>
250 OK
RCPT TO:<myvalidaddress@gmail.com>
250 Accepted
DATA
354 Enter message, ending with "." on a line by itself
This should not work
.
250 OK id=1JK8kZ-0004Xx-7O
quit
221 fakedomainname.com closing connection
Connection closed by foreign host.
asdfasdfasdf:~ username$
I was expecting to see a "550 authentication required" message after it saw that "RCPT TO" wasn't a locally-hosted domain. I did confirm that the message was properly delivered to the intended Gmail address. So far, it looks like an open relay. But when
I use a third-party environment, such as the open relay checker at abuse.net, I am correctly seeing "550" messages at the appropriate places.
In other words, when anyone else does it, they get "550". When it do it from my laptop (from any client or telnet session), I'm clear to send. Just to add a little zest to the situation, when I did this same test 36 hours ago, I *was* getting "550" errors.
This doesn't seem right to me. However, my mail admin skill level is approximately zero, so I'm willing to accept that this is normal behavior and that I am overlooking the obvious.
I am setting up a niche recruitment website where people can put online CVs, upload PDf CVS and search for jobs. employers can post vacancies and search for potential employees. Would shared hosting be adequate for this (it has all the MYSQL databases necessary) I am just wondering what sort of demand this makes on servers. I currently have a 1and1 professional shared hosting package or do I need VPS?
View 4 Replies View RelatedI'm sure by now most of you have read the Web Server Optimization Guide by Shaw Networks. It came in handy for me when I was first starting out, I reduced my load & memory usage by tonnes. I thought I would make a new thread with an updated How-To.
Recommended Tools/Programs:
Putty - Free SSH Client - [url]
WinSCP - Free SFTP and SCP Client - [url]
MySQL Optimization:
BACKUP:
cp /etc/my.cnf /etc/my.cnf.backup
Use Pico (pico /etc/my.cnf) or Download via WinSCP for editing,
Delete everything that is currently in the file and add the following...
Code:
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
skip-locking
skip-innodb
query_cache_limit=8M
query_cache_size=256M
query_cache_type=1
max_connections=500
max_user_connections=100
interactive_timeout=60
wait_timeout=60
connect_timeout=30
thread_cache_size=128
key_buffer=16M
join_buffer=1M
max_allowed_packet=16M
table_cache=1024
record_buffer=1M
sort_buffer_size=2M
read_buffer_size=2M
max_connect_errors=100
# Try number of CPU's*2 for thread_concurrency
thread_concurrency=2
myisam_sort_buffer_size=64M
#log-bin
server-id=1
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
[isamchk]
key_buffer = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M
[myisamchk]
key_buffer = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
To Save: CTRL-X
Restart Service: "service mysqld restart" or "service mysql restart" or "/etc/rc.d/init.d/mysql restart"
HTTP/APACHE Optimization:
BACKUP:
cp /usr/local/apache/conf/httpd.conf /usr/local/apache/conf/httpd.conf.backup
Use Pico (pico /usr/local/apache/conf/httpd.conf) or Download via WinSCP for editing,
Change the following settings in your httpd.conf...
Set "Timeout" value to "Timeout 60"
Set "KeepAlive" to "KeepAlive on"
Set "KeepAliveTimeout" to "KeepAliveTimeout 3"
Set "MinSpareServers" to "MinSpareServers 16"
Set "MaxSpareServers" to "MaxSpareServers 32"
Set "MaxRequestsPerChild" to "MaxRequestsPerChild 256"
Set "HostnameLookups" to "HostnameLookups Off"
Note:
These settings will not work under all server environments its recommended that you tweak around with the numbers until your web server is running 100% please read Apache documentation before changing any settings so you know what you are changing [url]
To Save: CTRL-X
Restart Service: "service httpd restart" or "/etc/rc.d/init.d/httpd restart"
Installing eAccelerator:
eAccelerator is a further development from mmcache PHP Accelerator & Encoder. It increases performance of PHP scripts by caching them in compiled state, so that the overhead of compiling is almost completely eliminated. [url]
If you run CPanel please visit [url] for an auto-installer which will do all the hard work for you.
Run the following in SSH.
Code:
cd /
mkdir ea
cd ea
wget [url]
bunzip2 eaccelerator-0.9.5.tar.bz2
tar -xvf eaccelerator-0.9.5.tar
cd eaccelerator-0.9.5
export PHP_PREFIX="/usr"
$PHP_PREFIX/bin/phpize
./configure --enable-eaccelerator=shared --with-php-config=$PHP_PREFIX/bin/php-config
make
make install
mkdir /phpcache
chmod 0777 /phpcache
Edit your PHP.INI file and at the bottom add...
Code:
To install as a ZEND extension:
zend_extension="/ea/eaccelerator-0.9.5/modules/eaccelerator.so"
eaccelerator.shm_size="16"
eaccelerator.cache_dir="/phpcache"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"
OR to install as a PHP extension:
extension="/ea/eaccelerator-0.9.5/modules/eaccelerator.so"
eaccelerator.shm_size="16"
eaccelerator.cache_dir="/phpcache"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"
Restart Service: "service httpd restart" or "/etc/rc.d/init.d/httpd restart"
For a great tutorial on Optimizing host.conf & sysctl.conf visit..
http://www.eth0.us/node/104
Common SSH Commands visit..
[url]
How to block an IP using iptables visit..
[url]
<Updated and edited since the WHT crash>
I have had a VPS with Digital Linx since December 4, 2008. I am more than happy with the service I have received from them. At first, their order and billing system was a bit wonky, but now it is working just fine. I have dealt with support a few times, and they have been very quick to respond. Their MSN support person is online a LOT. At one point, there was a heavy load on the VPS. I msg'd support on MSN and they were already dealing with it. It was fixed in 5 minutes. They were also quick to set up TAP/TUN, and were really good when I said I was going to set up the VNC I am currently running.
They have added a number of good VPS images since, including 2 VNC images. With this, the offer more than most VPS providers. Their support people have always been very quick to respond, and their prices are very competitive. I am thrilled to get this level of support for the amount I pay.
I currently do not have any website hosted on that VPS. I am using it as a VNC server/remote office. But, just so you know, I am posting from it! I have reported my domainname/IP.
I highly recommend Digital Linx. They are one of the best value VPS companies I have dealt with, and I have dealt with a few.
We are about to open a data center in India. Can u please someone guide us to setup a data center. I require some article, reference for all setup and from scratch.
View 11 Replies View RelatedCurrently configuring my VPS, have been for a while now, and am relooking at the security I'll need on it. The VPS will be running something similar to a CMS/Forum site and won't be offering webhosting. Alot of the security measures around here are webhosting orientated. What security procedures does everyone suggest for my situation?
I've got APF, BFD and restricted root SSH access. Is there anything else?
Is there a Windows GUI software for remote Admining servers that run on Red Hat Linux?
FYI: Currently I use Putty for remotely managing our servers.
So if you can recommend a GUI like Windows desktop software for remotely Admining servers running Red Hat Enterprise, I would very much appreciate that.
FYI: we have like 10 dedicated severs, so a desktop GUI that would allow one to monitor/manage multiple servers would be best. But if the GUI that you think is best can only remotely connect/manage one server at a time, requiring disconnecting to connect to the other server to Admin it, that is fine.
Also, I would love to hear what you think is the best book, best tutorial and reference guide for remotely Admining servers running RHEL? I am not looking for one of those books that are 1000 pages, but something that is a few 100 pages and can be read in 1 month assuming a few hours per day of reading.
I have had great difficulty in setting up OpenVPN, so I thought, when I finally do get it to work, I will write a HOWTO, so other can hopefully benefit…
This guide was done using a FC4 VPS, running on Xen, it will work on OpenVZ, all you need to do is ask your VPS provider to install “tun support”.
1.First of all get a few additional repos, If you already have your repos setup, skip this step
If you have Fedora 3, follow these steps,
[url]
If you have Fedora 4, follow these steps,
[url]
If you have Fedora 5, follow these steps,
[url]
If you have CentOS, follow the “additional third party CentOS repos”
[url]
Then issue these commands, each line is a new command, anything beginning with "#" are comments so dont try to execute those.
Code:
yum update
yum install openssl openssl-devel
# openssl and openssl-devel may be installed already… so don’t worry
2. Right, now you want to install OpenVPN, here are the commands,
Code:
yum install openvpn -y
#Now check that it works
service openvpn start
service openvpn stop
3. A few things to setup before you can make certificates, issue these commands,
Code:
find / -name "easy-rsa"
#you should get an output like this…
/usr/share/doc/openvpn-2.0.7/easy-rsa
#Now, make a copy of the easy-rsa directory, to /etc/openvpn/ ( make sure you #have put the right version number in i.e. mine was -2.0.7, change if needed)
cp -R /usr/share/doc/openvpn-2.0.7/easy-rsa /etc/openvpn/
cd /etc/openvpn/easy-rsa
chmod 777 *
mkdir /etc/openvpn/keys
4. You need to edit the vars file, located in /etc/openvpn/easy-rsa
You can use any editor you like, I used vi.
Change the line
Code:
export KEY_DIR=$D/keys
to
Code:
export KEY_DIR=/etc/openvpn/keys
Also at the bottom of this file you will see something similar to this,
Code:
export KEY_COUNTRY=US
export KEY_PROVINCE=CA
export KEY_CITY=SOMEWHERE
export KEY_ORG="My Org"
export KEY_EMAIL=me@mydomain.com
Change this to your own values.
5. Now its time to make the certificates, enter these commands
Code:
. ./vars
Code:
./clean-all
Code:
./build-ca
# just hit enter to the defaults apart from Common Name, this must be unique
# call it something like mydomain-ca
Code:
./build-key-server server
Code:
./build-key client1
# remember that common name must be unique e.g. use mydomain-client1
# and YES you want to sign the keys
Code:
./build-key client2
# do this step for as many clients as you need.
Code:
./build-dh
6. We are almost done now… right we need to create a few config files, you can download my template from here,
Code:
cd /etc/openvpn
Code:
wget www.designpc.co.uk/downloads/server.conf
# make sure you change a few things in the server.conf file, like DNS
# servers
Code:
touch server-tcp.log
~ this makes the log file..
Code:
touch ipp.txt
this makes the IP reservation list.
7. You need to make a few changes to OpenVPN itself. Go to..
Code:
cd /etc/init.d/
edit the openvpn file
#Uncomment this line (line 119)
Code:
echo 1 > /proc/sys/net/ipv4/ip_forward
Add these lines below it, changing 123.123.123.123 to your public IP address,
Code:
iptables -t nat -A POSTROUTING -s 192.168.2.3 -j SNAT --to 123.123.123.123
iptables -t nat -A POSTROUTING -s 192.168.2.4 -j SNAT --to 123.123.123.123
iptables -t nat -A POSTROUTING -s 192.168.2.5 -j SNAT --to 123.123.123.123
iptables -t nat -A POSTROUTING -s 192.168.2.6 -j SNAT --to 123.123.123.123
iptables -t nat -A POSTROUTING -s 192.168.2.7 -j SNAT --to 123.123.123.123
iptables -t nat -A POSTROUTING -s 192.168.2.8 -j SNAT --to 123.123.123.123
iptables -t nat -A POSTROUTING -s 192.168.2.9 -j SNAT --to 123.123.123.123
iptables -t nat -A POSTROUTING -s 192.168.2.10 -j SNAT --to 123.123.123.123
Now install iptables if you don’t have it already,
Code:
yum install iptables
#test it
service iptables start
service iptables stop
8. Now for the client config files. If your client is a Windows machine, make sure you have installed OpenVPN, use the gui version, downloadable from here;
[url]
You need to copy a few files from the server to your client machine, here is the list, located in /etc/openvpn/keys/
## WARNING ## Use a secure way of transferring these files off the server, something like WinSCP.
ca.crt
client1.csr
client1.key
client1.crt
Put these files in this directory C:Program FilesOpenVPNconfig
Now you need to make a client config, here is an example..
PHP Code:
clientdev tunproto tcp#Change my.publicdomain.com to your public domain or IP addressremote my.publicdomain.com 1194resolv-retry infinitenobindpersist-keypersist-tunca ca.crtcert client1.crtkey client1.keyns-cert-type server#DNS Options here, CHANGE THESE !!push "dhcp-option DNS 123.123.123.123"push "dhcp-option DNS 123.123.123.124"comp-lzoverb 3
Make sure you edit any of the lines with comments above them.
Call this file client1.opvn and put it in C:Program FilesOpenVPNconfig
Make sure the file extension is .opvn not .txt
To connect right click on OpenVPN in the taskbar >> Connect
To test ping 192.168.2.1
Why servers are being run out of memory by the 'sort' command even when the logs are small? Here's what is currently on a site:
-rw-r--r-- 2 root root 22392143 Mar 26 11:40 access_log
-rw-r--r-- 2 root root 68018869 Mar 26 10:50 access_log.processed.1
-rw-r--r-- 3 root root 67671664 Mar 26 09:50 access_log.processed.2
-rw-r--r-- 1 root root 69908 Mar 26 10:50 access_log.stat
[Code] .....
After upgrading the panel from 10.4.4 to 11.5.30 Update #23, I am not able to sort domains based on the "Renewal Date" column. With 10.4.4, I was able to sort. Is there anyway I can do this on 11.5.30?
View 7 Replies View RelatedI can find lots of info on getting started on designing a web site but not much on getting started on publishing/managing the site.
I have been bumbling through trial and error for several years now. I was on infinology with hsphere for awhile. I am now on hostgator with cpanel 10. (Shared-babycroc)
I would like the equivalent of a dummies book that addresses all those pre-made directories and files that come with an account, discussions on permissions, password protecting directories, hotlinking, email account management, add-on domains, subdomains, etc.
I would really like a basic overview so that I could have a better chance of understanding the forum discussions and help sites I do find.
how to setup an external hard drive with USB port to a webserver with following configuration:
Centos 5.3
Cpanel (latest)
What I want to do is to format and mount an external hard drive by USB port to my server and take my daily cpanel accounts on it.