Linux Cisco VPN Client - Two Concurrent Connections Possible?
Jun 21, 2008
Server: Dell 2950
onboard NIC only
CentOS 4.6
Is it possible to run two concurrent VPN connections using the Linux Cisco VPN client? We need to have one server be able to communicate over two different vendors gateways.
Do we need to possibly add an additional NIC to the server first?
When we try to connect to another profile we get the error:
Initializing the VPN connection.
Secure VPN Connection terminated locally by the Client
Reason: A connection already exists.
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Apr 21, 2009
i have a vps, and im current use lighttpd, but i want move to litespeed Standard. And i see they limit Max Concurrent Connections =150 on standard version.
but what is Max Concurrent Connections? where can i find it.
and is it the number connection via port 80 (netstat -nt | grep :80 | wc -l)?
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Apr 23, 2008
Iam currently on godaddy on shared hosting but my site with php and mysql is very slow on queries and get a lot of timeouts
So far i have contacted the below providers and asked them how many concurrent connections on mysql database they support
hostgator - 25 connections
powweb - 20 connections
hostmonster - 30 connections
Servage - 20 connections
anhosting - 50 connections
How is most reliable and i can count on ? I want to tranfer my domain.
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Oct 6, 2008
Is there any host with a shared connection that will allow Unlimited concurrent connections to both http and to mysql.
I Got a myspace clone that just blows through connections when my users are logged in.
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Apr 28, 2009
Currently I use WHM/cPanel latest on a few boxes, I have (at least to my knowledge) copied the exact compile settings between servers, yet some of my servers allow me to do concurrent file downloads (using DownThemAll or another "accelerator") whilst others only let me make 1 connection. These servers also don't show me the final filesize while downloading. So my question is, what did I set/unset to cause this to happen? It's been bugging me for a month or so now and no amount of recompiling has fixed the issue (aside from a clean install of the OS/cPanel). I can provide a list of modules and other config settings if required.
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Aug 12, 2008
I will be running Plesk.
I only need 1 user, Administrator with full Remote Desktop Connection access.
But I need to be able to serve websites using Plesk.
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Mar 23, 2009
I am planning to get a Juniper firewall, but due to SSG140 has a maximum of 48,000 concurrent sessions per second, so it triggers me how do I measure the concurrent session of a linux server of the total throughput instead of just port 80?
OS: CentOS
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Jun 25, 2015
I am running Plesk 12.0.18 on Centos 6.4
I have noticed that the CPU on my VPS maxes out. This occurs when there are many concurrent visitors to any of the 7 domains. 6 of the domains run Wordpress and 1 runs php-bb forum. When I run top during high cpu I see multiple "php-cgi":
32664 xxxx 30 10 211m 38m 8228 S 21.0 0.9 0:03.70 php-cgi
32675 xxxx 30 10 209m 38m 7992 S 25.8 0.9 0:02.08 php-cgi
30809 apache 30 10 422m 98m 2492 S 8.8 2.2 0:18.07 httpd
Looking at the process
PID TTY STAT TIME COMMAND
32664 ? SN 0:01 /usr/bin/php-cgi -c /var/www/vhosts/system/websitex.com/etc/php.ini
The net result is CPU hits 100% and visitors are greeted with Service Unavailable ...
Output from /usr/local/psa/bin/php_handler --list
id: display name: full version: version: type: cgi-bin: php-cli: php.ini: custom:
cgi 5.3.3 5.3.3 5.3 cgi /usr/bin/php-cgi /etc/php.ini false
fastcgi 5.3.3 5.3.3 5.3 fastcgi /usr/bin/php-cgi /etc/php.ini false
module 5.3.3 5.3.3 5.3 module /usr/bin/php-cgi /etc/php.ini false
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Jul 28, 2009
I am running lighttpd and eccelerator.
I have stripped the php-cgi.
I have tried forking anywhere from 50 to 300 to 1000 fastcgi children with PHP_FCGI_CHILDREN (through lighttpd, I'll attempt to do with same with spawn-fastcgi and fpm)
Server stats:
Intel Core i7 920
12GB DDR
250GB 7.2k RPM SATAII 16MB Cache
I am using to lighttpd's lighttpd-status to estimate concurrent connections.
When I refresh the panel, it shows that there are around 100-150 connections and around 150 requests/s in the last 5 seconds.
My vmstats show that CPU is 98% idle. Blocks written/read is neglible. MySql key_buffer set to 2gb and I'm pretty sure it's not mysql. The overwhelming majority of requests do not access mysql.
EDIT: Uh oh, I just realized that tcp_mem could be a huge bottle neck.
I just set it to:
net.ipv4.tcp_mem = 4096000 87380000 4194304000
It was previously:
net.ipv4.tcp_mem = somenumber somenumber 393,216 <<<--- WTF!
x1000 for my read values (it's an access server only). I can't benchmark the server right now so let me know if you have any suggestions besides this. I do think that this was the problem. When under load images could not be accessed either.
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Aug 14, 2009
I thought with 802.3ad I could aggregate the links and thus turn a 3x100 megabit pipes to one 300 meg pipe. The problem is when using the default options (and layer2 xmit mode) I only get the bandwidth of a single connection and I see no other traffic on the other two. Here is output from /proc/net/bonding/bond0:
Code:
Ethernet Channel Bonding Driver: v3.3.0 (June 10, 2008)
Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
802.3ad info
LACP rate: slow
Active Aggregator Info:
Aggregator ID: 2
Number of ports: 3
Actor Key: 9
Partner Key: 3
Partner Mac Address: 00:1e:f6:xx:xx:xx
Slave Interface: eth0
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:1e:8c:xx:xx:xx
Aggregator ID: 1
Slave Interface: eth2
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:04:23:xx:xx:xx
Aggregator ID: 1
Slave Interface: eth3
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:04:23:xx:xx:xx
Aggregator ID: 1
Basically it works in that I get a connection but its no different from being on a regular 100/100 connection. Downloading files my machine from completely different networks always only goes out one connection. I don't even see any received/sent packets from the other two interfaces.
When I tell it to use layer3+4 via the xmit_hash_policy paramter when loading the module IE:
modprobe bonding mode=4 xmit_hash_policy=layer3+4 miimon=100
It seems to work as expected except it looks like all incomming traffic comes in on the same interface and its not much different from a normal load balancing (except from a single IP address). I will stick to this method if I have no choice as I don't really care about the download all that much and it seems to do a good job.
Here is /proc/net/bonding/bond0 from that config:
Code:
Ethernet Channel Bonding Driver: v3.3.0 (June 10, 2008)
Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer3+4 (1)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
802.3ad info
LACP rate: slow
Active Aggregator Info:
Aggregator ID: 2
Number of ports: 3
Actor Key: 9
Partner Key: 3
Partner Mac Address: 00:1e:f6:xx:xx:xx
Slave Interface: eth0
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:1e:8c:xx:xx:xx
Aggregator ID: 2
Slave Interface: eth2
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:04:23:xx:xx:xx
Aggregator ID: 2
Slave Interface: eth3
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:04:23:xx:xx:xx
Aggregator ID: 2
My understanding is that with layer2 it should just be one big fat pipe. IE: packets are fragmented and thus even a single connection should be able to sustain 300 megabits (if the other end could provide it). It seems like it just doesn't use my other interfaces at all when doing this.
Here is my config on the cisco 2960:
Code:
interface Port-channel3
switchport access vlan 100
switchport trunk allowed vlan 100
switchport mode access
switchport nonegotiate
spanning-tree portfast
!
interface FastEthernet0/10
switchport access vlan 100
switchport trunk allowed vlan 100
switchport mode access
switchport nonegotiate
channel-protocol lacp
channel-group 3 mode active
spanning-tree portfast
!
interface FastEthernet0/38
switchport access vlan 100
switchport trunk allowed vlan 100
switchport mode access
switchport nonegotiate
channel-protocol lacp
channel-group 3 mode active
spanning-tree portfast
!
interface FastEthernet0/40
switchport access vlan 100
switchport trunk allowed vlan 100
switchport mode access
switchport nonegotiate
channel-protocol lacp
channel-group 3 mode active
spanning-tree portfast
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Mar 11, 2015
When a login to my plesk, i look this error:
ERROR: Zend_Db_Adapter_Exception: SQLSTATE[08004] [1040] Too many connections (Abstract.php:144)
ERROR: Zend_Db_Adapter_Exception: SQLSTATE[HY000] [2002] No such file or directory (Abstract.php:144)
ERROR: Zend_Db_Adapter_Exception: SQLSTATE[HY000] [2002] Connection refused (Abstract.php:144)
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Dec 16, 2007
My host has helped me to install a switch. However, I don't know how to configure using the command line. Could anyone help me?
I need to be able to connect to my Cisco switch using Cisco Network Assistant. If you know the command sequence,
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Jul 16, 2015
how to use Plesk through “Customer's Guide, Plesk 12.0” manual from Odin website. I have a VPS Cloud plan at OVH with Plesk 12 Web Admin + CentOS 6.6
I wish to know how to enable POP3, IMAP, SMTP, FTP protocols with a cryptid connections using native Plesk/CentOS certificate (not purchasing one but self-made by the server). Moreover, I wish to know if it uses SSL or TLS.
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Jun 18, 2014
Since the update I have a problem with my Firewall. I need to set "Allow all incoming connections" under "Server => Firewall" in order to connect over FTP with TLS (explicit). This was working before the update without allowing all incoming connections. How to fix this in the Plesk panel?
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Jan 28, 2015
My Customers and I have Problems connecting to IMAP-Server. By moving through IMAP Folders I get the Massage "Unable to connect to your IMAP server. You may have exceeded the maximum number of connections to this server"
I know this Article: [URL] ... and all the other related to this issue.
[Code].....
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Jul 24, 2008
i have linux.i want setup vpn server on this,and take several account vps to windows clients
how may?
i can`t use of openvpn
do you have another tools?
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Apr 30, 2015
The FTP on my VPs running centos 6.6 and plesk 12.0.18 Update #44 has stopped allowing FTP conections via filezilla or dreamweaver. My tech knowledge with server management outside of the gui is minimal but i have done the following. Checked that the firwall is allowing ftp traffic through the GUI in plesk.
restarted xinetd and checked status
[root@367549 ~]# service xinetd status
xinetd (pid 11707) is running...
[root@367549 ~]# lsof -i tcp:21
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
xinetd 11707 root 5u IPv6 682472 0t0 TCP *:ftp (LISTEN)
Then tried the following
[root@367549 ~]# ftp localhost
-bash: ftp: command not found
But i can connect via telnet on port 21
when trying to use +dreamweaver or filezilla i get the following. This may be due to one or more of the following reasons: - The network cable is unplugged or the network is down. Please verify that the network cable is connected and that the network is up. - The FTP server is down. Please verify that you can connect to the FTP server using another FTP program. - The FTP host name is incorrect. Please verify that the host name is correct in the Site definition dialog box. - Accessing the server requires proxy settings that aren't properly set. Please verify that the proxy settings in the Site category of the Preferences dialog box are properly set, and that the Use Proxy option in the Site definition dialog box is selected. - You may need to connect to the server using a different port than the one provided. Please specify the correct port in the box provided.
Error: The data connection could not be established: ETIMEDOUT - Connection attempt timed out
Error: Connection timed out after 20 seconds of inactivity
Error: Failed to retrieve directory listin.
What to do and why after no change this just stopped working when ive been using ftp on this server previous.. the company that i brought the vps from have no intrest and tell me its unmanaged.
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Apr 29, 2015
URL....We are running Plesk 12 on a Linux VPS where we have multiple domains running.Multiple of these domains should redirect from www. domain name. ext to https://ext.domainname.com.This is configured with the Domain forwarding in Plesk, with hosting type Forwarding.But as described in the 2 links provided above, whenever you go to https://www.domain.ext, it does not redirect, and actually shows a Security error, since the domain doesn't have the SSL-certificate installed (because it should redirect to the https://ext.domainname.com).
Clearly we don't want visitors on the website to receive the (incorrect) Security error, and we want all traffic to http(s)://www.domain.ext to be redirected to the appropriate subdomains. allows us to redirect both the https/http connections to the domains, without forcing us to have the domains have a Website hosting add redirect them manually with (for example) .htaccess.
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Nov 5, 2008
i would like to move few clients from my old linux VPS that runs on Cpanel .. to my new windows VPS tat runs Plesk .. you see there were several attempts by new provider .. they cant guarantee that accounts can be fully migrated even manually they only copied site files to new server .. the client account's still running on linux vps cpanel, they are intact .. clients dont have any php or mysql files they are just plain HTML and Flash files .. i can move site files .. im concerned about mail accounts and emails that already in my clients inbox (they are using IMAP accounts) .. do you guys know any guideline or step by step how to migrate my clients
P.S. please consider me as an uneducated person .. my background is designing not programming or network administration.
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Oct 19, 2014
I'm having a hard time configuring this setting for nginx on a domain, whatever i try i cant get it to accept files as big as I need. Every time i try i get this red message :
Code:
Configuration Nginx non valide : nginx: [emerg] "client_max_body_size" directive is duplicate in /var/www/vhosts/system/domain.fr/conf/vhost_nginx.conf:4 nginx: configuration file /etc/nginx/nginx.conf test failed
I followed these instructions: [URL] ....
Strange thing is there was no panel.ini file where the instructions are pointing so i created one, but still, i cant get that directive to work.
Before plesk 12 (with 11.5) i finally got it to work by manually editing some nginx conf file on the server, but i can't find anymore how...
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Jul 2, 2014
All new domains (sites) only display the Parallels page. Upgraded to the following ...
OS CentOS 6.5 (Final)
Plesk version 12.0.18 Update #6, last updated at July 3, 2014 06:56 AM
The system is up-to-date; last checked at June 27, 2014 04:43 AM
Pretty sure it is a permissions problem, have tried chown -R domain.com.au domain.com.au and returns invalid user.
Can now FTP, use webmail, preview the site and have uploaded a pretty big site .... the Paraellels site displays it as 0mb disk space used and only displays the default Parallels place holder.
This is what a new domain name is displaying ######################################
Files listed in the file manager ######################################
Files uploaded using Filezilla FTP program ######################################
Default place holder ... can't display any other page. ######################################
Have checked all DNS settings and they match the other domains.
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Oct 6, 2014
I have completed email set up on my server and have checked that email ports are open, but for some reason outlook keeps returning : "Outlook cannot find the server. Verify the server information is entered correctly in the Account Settings, and that you DNS settings in the Network pane of System Preferences are correct."
The odd thing is that outlook still picks up emails if I receive any, but keeps returning above error every minute.
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May 11, 2015
I have been using Plesk for a while on my server, but this is the first time that I need to set up large files uploading for a client who requires to upload via a form files that are larger than 128MB (but less than 400).The issue I've been seeing is that whenever the user tries to upload a file greater than 128MB I see an error on the proxy_error_log that says:
2015/05/10 21:46:18 [error] 31224#0: *9 client intended to send too large body: 175420278 bytes, client: XX.XX.XX.XX, server: myserver.com , request: "POST /admin/products/1 HTTP/1.1", host: "myserver.com", referrer: "referrer"
I've been googling this issue and everything points to the nginx configuration (PHP parameters have already been set up). I proceeded to change the configuration of /etc/nginx/nginx.conf to include
http {
...
client_max_body_size 400M;
...
}
HOWEVER (and this is where I'm stuck) after restarting the nginx service, the fille /etc/nginx/plesk.conf.d/vhosts/myserver.com.conf continues to hold the value:
server {
...
client_max_body_size 128m;
...
}
Modifying this file to change the 128m to 400m does not make a difference.
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Jul 9, 2014
I migrate from plesk 9.5 to another server with plesk 12.0.18, and then outlook and mail default from iphone don't work, but tunderbird and webmail work well.
In outlook when i put the same configuration than tunderbird and i try to send mail out from my domain said this error:
Error del servidor: '554 5.7.1 <244.Red-88-18-221.staticIP.rima-tde.net[88.18.221.244]>: Client host rejected: Access denied
I don't know if outlook is bad configuration but with plesk 9.5 worked well, and now nothing.
I can recive mail but not send.
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Aug 17, 2014
I'm using Parallels Plesk 12.0 and a mysql-Server.
I'm logged in with a customer's account into his phpmyadmin. Whenever a client connects to his website (which uses the database of his account) I get logged out and receive a "session expired" error. When I log in again I get "there's already a user with your username logged in".
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Apr 30, 2015
I created a New Client Default Domain by copying plesk's original Default Domain.This template is for clients we move from older versions of plesk up to servers with plesk 12.x. Under resources for that "Service Plan Name"
I have Sites published with Presence Builder set to 0 and.Allow customer to create trial Presence Builder websites. Not checked.When I log in as the client I still see Presence Builder with edit Website.I also confirmed the correct plan was picked for that subscription by picking the new "New Client Default Domain" and under add-on plans I picked "remove"
But when I log in as the "client" to see what they would see I see Presence Builder and Edit Website available.How do I get rid of that selection?I can see a client clicking on it and basically over writing their current website.
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Oct 22, 2014
I host a number of large sites (20GB+) on my VPS server running Centos6 and Plesk Panel 12. Due to the large sites I don't want to keep multiple backups on the actual server because it would take too much disk space. When I create a backup to the server's repository all is good, but when I click the green arrow to download the backup it takes a long time and then it fails with a timeout error. On some smaller sites it takes a while but eventually downloads the tar.
So my question: Is it possible to access the Server Repository via FTP? How and where would I set this up? Presumably it would be a better way to download these large archive files?
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Jul 14, 2015
My panel suddenly stop works to create databases from client account.This error shows:
Internal error.
PHP Notice: Undefined variable: dbType
From admin account there is no problem to create databases.I`ve run bootstrap.sh repair successfully but still not working.Plesk 12.0.18 #55 Ubuntu Linux 10.04
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Jul 22, 2014
We have a VPS with Centos 5 and Plesk 12.0.18.
The CRON service is running and works correctly, the Scheduled tasks on the administration Plesk Panel (tools & Setting / Scheduled tasks / root user) works ok, but when a customer sets a new scheduled task from her domain panel, don't works.
The task is a simple WGET command.
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May 30, 2015
I have the problem that I can't connect to my mailserver tru the mail client (Webmail works fine, I receive mails and can send mails)
But if i try to connect over mailclient I get this error in errorlog:
couriertls: connect: error:1408A0C1:SSL routines:SSL3_GET_CLIENT_HELLO:no shared cipher
What can I do to get connection over mailclient?
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