Server :: Limit The SSH Connections?
Jul 14, 2011Is it possible to do limit the SSH connections using IPTABLES, like per day minimum 10 times only ssh connections can allow like that, or any other way to limit the SSH connections.
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Red Hat / Fedora :: Finding The Maximum Limit Of Connections FTP Server?
Jul 1, 2010tell me the maximum limit of connections FTP server
View 2 Replies View RelatedServer :: Limit Number Of Simultaneous Connections From Any Given IP Addrss Every 5mins Say
Jul 28, 2010except is there is a way to enhance mod_limitipconn.c to ensure that apart from restricting one connection allowed from a given IP, also set so that an IP can only connect on every set interval ?e.g.restrict the number of connections from a given source IP to say once every 5 minutes or so?if not mod_limitipconn.c, any other mechanism to do the expected result?
View 2 Replies View RelatedServer :: Apache Virtual Host To Limit The Concurrent Connections Of Virtual Hosts?
Jul 3, 2009apache virtual host to limit the concurrent connections of virtual hosts? Taking into account the host of each virtual user's home directory can also have more than one subdirectory, which should be restricted to a subdirectory. Is beyond the control of the operation of these sites in a subdirectory. Best local restrictions or limitations to the overall situation.
View 1 Replies View RelatedSecurity :: Limit The Number Of Ssh Connections?
Dec 13, 2010Dist: Fedora 14
SSHD: OpenSSH 5.5p1
I need to limit the number of ssh connections a user has. All the users are using tunnel only so their shell is set to /sbin/nologin The logins do not open a shell they just create the tunnel so /etc/security/limits.conf has no effect on them at all.
I tried setting 'MaxSessions 1' in sshd_config but either that doesn't not do what I expect it to or it plain does not work as even with a normal user I was able to open an unlimited number of sessions. I need a good secure way to limit each user to 1 ssh session without them having a shell but Im unable to find a solution.
Fedora Networking :: Limit Outbound TCP Connections To Single IP?
Oct 19, 2009I'm having a problem that seems to plague a lot of people judging from my research on the web. I have a hosting provider that limits the number of incoming connections to the shared host to 50 per IP.
I have a single IP for outbound connections and I use Squid as a proxy server.
Lately I've tripped across the 50 connection limit frequently - and that's with only 1 user. It seems the problem is related to the performance you can get out of a desktop these days. Its not impossible to have several browsers open with several connections to different sites on the same server - and boom - locked out!
So it occurred to me that there must be some way to limit the number of outbound connections in the kernel - but I've not found it. I did find that Microsoft had been limiting the number of outbound connections in XP to 10 to address the virus problem, and I've found countless hosting complaints and dialog on the subject with no easy solution.
So my question is simply, does anyone know how to limit the number of OUTBOUND connections to a single IP in the kernel?
Security :: Limit Number Of Connections For Single Ip On Port 80 To CentOS 5.5
Sep 5, 2010How to number of connections for a single ip on port 80 to CentOS 5.5 with iptables? connlimit did not work on CentOS and nginx does not provide a module for that
View 4 Replies View RelatedServer :: Limit The Suphp User Memory Limit?
May 12, 2010I have a VPS server with 512 MB memory. The php.ini is set so script memory limit = 16 MB. However, I have noticed in my top report, instances like the following:
Quote:
5484 coldclim 25 0 46476 32m 5920 R 0.0 6.4 0:00.93 php
The bold number of 6.4 is the % of sever memory this process is using. 6.4 % of 512 MB of memory is about 32 MB of memory, so it appears that this isn't being limited by php.ini. Am I correct? This leads to the next question: Is there some way to limit the amount of memory a single suphp process can use? (Basically, something like the setting in php.ini which limits suphp processes in the same way.)
Ubuntu :: 2 Pptp Vpn Connections - When I Dial One Of My Vpn Connections, My Other Vpn Connections Be Disabled?
Feb 7, 2011have a problem with my network-manager in ubuntu 10.10.when I dial one of my vpn connections, my other vpn connections be disabled and I can't use them!I tried to restart network-manager and gnome-panel, but it does't seem to solve this problem.
View 1 Replies View RelatedSoftware :: Pam_limits(sudo:session): Wrong Limit Value 'unlimited' For Limit Type 'soft'
Dec 28, 2010my secure log is flooding with these messages..
sudo: pam_limits(sudo:session): wrong limit value 'unlimited' for limit type 'hard'
Dec 28 22:42:29 yn54 sudo: pam_limits(sudo:session): wrong limit value 'unlimited' for limit type 'soft'
Dec 28 22:42:29 yn54 sudo: pam_limits(sudo:session): wrong limit value 'unlimited' for limit type 'hard'
Server :: How To Check OS Back_log Limit
Jan 17, 2010I want to change back_log for mysql, but in documentation said OS has it's own limit. how can i check what that limit is?
View 1 Replies View RelatedServer :: IPtables And TC - Limit To 1.5Mbps
Dec 27, 2010Does anyone know a simple out of the box option to limit traffic by IP with iptables? Output to each connected IP should be limited to to 1.5Mbps but I don;t want to limit incoming connections from the web. Ideally something with a tutorial because the LARC papers and stuff are impossible to read. For example, the user connects by VPN and requests the webpage [URL]. This should be sent to them at 1.5Mbs but if user 2 connects to [URL], this should also be sent at 1.5Mbps but the incoming ..... connection needs to be allowed to be unlimited to prevent incoming throttling..
View 3 Replies View RelatedServer :: Limit Rsync Log Output?
Jul 23, 2010Is there a way to limit the amount of data that goes in to an rysnc log. The problem I have is that I email myself the log file to make sure it went ok but sometime the log is hugeHere is what I am doing with rsyncrsync -azHK --delete-after /home/ /mnt/usbbackup/home/ >/backup-log/backup.txt
View 1 Replies View RelatedServer :: Limit User Processes ?
Feb 10, 2010I have some domains on a VPS server. Typical account memory usage for all domains runs at 50% of available, but I have a problem. One domain is causing me trouble because intermittently traffic will spike on that domain, causing so many requests within 1 min that I exceed my memory allocation for my entire VPS package. Apache is then killed but the virtualization software and Apache must then be restarted.
A sample snippet from tops right before the sever went down would like like this:
All of that memory usage adds up. I would like to "throttle" the number of processes that user/domain can run. I think this would be a quick and easy way to keep the domain from taking down my entire VPS. My understanding is that I could do this with the /etc/security/limits.conf file.
Is that correct?
I have never done this before. Do I want to set a hard or soft limit? I think if I wanted to limit the number of processes for "coldclim" to 15 I would add a line to limits.conf like this:
Code:
Assuming that is correct, can anyone tell me how the website would respond once it reached its limit? Would visitor queries become sluggish, or would the website not come up for them at all?
Server :: How To Time Limit A DHCP Lease
May 9, 2011I would like to be able to schedule a limit for an IP connection for my kid's computers/iPods. Since I know the MAC addresses of their various hardware items, is there a way to shut down their connectivity at a particular time via the DHCP server or perhaps a firewall rule?
Running Ubuntu 10.04 and Shorewall is being used for the firewall.
Server :: IPtables And TC To Limit Network Speed
May 14, 2010I am trying to limit bandwidth of certain ip addresses on my server. I have been doing hours of reading and not getting very far... So far I believe the iptables command is
ptables -A PREROUTING -s 178.33.23.44 -t mangle -j MARK --set-mark 2
ptables -A PREROUTING -s 178.33.23.45 -t mangle -j MARK --set-mark 2
ptables -A PREROUTING -s 178.33.23.46 -t mangle -j MARK --set-mark 2
ptables -A PREROUTING -s 178.33.23.47 -t mangle -j MARK --set-mark 2
and now I just need the tc command to read those marks and limit bandwidth, I have a gigabit connection and would like to limit each of these ip addresses to 10mbit in and out.
Server :: Limit Bandwidth Mbps On Eth0?
Jan 3, 2011Is there a way to limit bandwidth mbps on eth0?
CentOS.
Limit either total traffic, or by port/IP, etc.
Server :: Limit Print Job Size From Samba?
Mar 15, 2010Does anyone know of a way of limiting a print-job size from samba?
I know how to limit a print job size form cups, and how to require x amount of free space before accepting a job. I've even dug up how to require x amount of free space for samba to accept a print job, but I can't see how to limit samba to only certain sized jobs.
Someone tried to print a >1G file to my print-server this morning, causing me to have a less relaxed Monday than I had hoped. Because it ran out of space before spooling, it was never limited by cups. Because I had to get rid of it ASAP so people could get work done, I have no idea who's it was, or where it came from. Scouring logs didn't give me any good leads either.
Server :: Limit The Number Of Logins For A User To Only One?
May 3, 2011I ran into a user today that indicated that their company only allows them to log in through a terminal session once (no multiple logins). On second try their login window terminates. They are using putty.Is this being accomplished through PAM or sshd ( or some other method)?
View 1 Replies View RelatedServer :: Concurrent File Read Limit
Jul 12, 2011More of a "Knowledge" question... Is their a limit to the number of reads a single file can take? Say for example I have a file named config.xml in an htdocs directory and a XMLReader function from PHP reads some value(s) out of this file for every connection of Apache or NGinx. Now suppose my site receives a gigantic spike in traffic (but Apache stays opertational through it all)... Is their a point at which the underlying system would simply not be able to open+read config.xml anymore??
View 2 Replies View RelatedServer :: Postfix Message Size Limit?
Sep 1, 2010I have been trying to increase the message_size_limit on my Debian 2.4.26 box with postfix 2.3.8. For example, I set message_size_limit and mailbox_size_limit to 104857600 (100m) and restart postfix. Running postconf -n confirms that it has changed. However when I send a test message it kicks it back saying the message size limit is 16777216 (16m, which is, incidentally, the default value of the berkeley_db_create_buffer_size parameter)
View 10 Replies View RelatedServer :: Postfix Queue Time Limit ?
Apr 27, 2010I notice that when someone sends a message from my Postfix server & it can't find the destination server or if there is a incorrect domain recipient entered by mistake, it sits in my Postfix queue for days. I think perhaps 4-5 days for some reason. I was wondering if I could shorten the time so the sender gets a delivery failure message kicked back to them in 24 hours rather than waiting 4 or so days.
Code:
Server :: Can Define Max Limit Of File Descriptor
Jul 7, 2009We are facing problem of to many file open error because of that application become slow and in tomcat catalina log we get following error frequently Jul 6, 2009 12:27:57 PM org.apache.tomcat.util.net.JIoEndpoint$Acceptor run SEVERE: Socket accept failed
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384)
at java.net.ServerSocket.implAccept(ServerSocket.java:453)
[code].....
no file limit,file descriptor limit for 300 user of tomcat application server and also oracle database server?
Security :: Policy That Limits Connections On Port - Encapsulates Total Sum Of All Connections From Hosts?
Jan 21, 2011Is it fair to say that connLimit and hashlimit are very similiar on Linux i.e. while hashlimit caters to limits for groups of ports, they both set the connection rate limit per host? How in IPTables, do I configure a policy that limits connections on a port that encapsulates the total sum of all connections from all hosts? i.e. I do not want to allow more than 6000conn/minute for port range that is the sum of all connecting hosts?
View 3 Replies View RelatedServer :: Increase Max Connections For Dedicated Server?
Jun 18, 2010Can anyone walk me through the process of increasing my max connection on my linux server?Over the last few weeks I have been getting errors saying I have to many connections.I think the default is 100 and I would like to maybe increase it to 150 or 200I know I cannot go to high because I will then be using to much of my memory or maybe CPU
View 8 Replies View RelatedDebian :: Limit The Bandwith Usage For Each User On Server?
Jan 7, 2011I have a webserver with a few users on and i wonder how i can limit the bandwith usage for each user on my server ?
View 1 Replies View RelatedGeneral :: How To Limit Printer Usage By Samba Server
Dec 4, 2010How can I limit printer usage by SAMBA server?
View 6 Replies View RelatedServer :: Limit User To Their Mailbox In Specific Size?
Sep 13, 2010How can i limit user to their mailbox in specific size.
View 2 Replies View RelatedServer :: Open File Limit On Debian Squeeze ( 6.0.1)?
Apr 28, 2011I have a problem with open file limit. The software I'm installing claims "Open file limit (ulimit -H -n) too low (1014), need at least 6311" but when I check the linit I get the following
Code:
# uname -a
Linux server 2.6.32-5-amd64 #1 SMP Mon Mar 7 21:35:22 UTC 2011 x86_64 GNU/Linux
[code]...
Server :: Set Time Limit For A Service Managed By Xinetd?
Aug 13, 2010Is there a way to limit the time an instance of a service can run? For example, I want to limit all telnet sessions to 30 mins. Users will be automatically logged out after 30 mins.
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