similar to: Limit number of sessions to ALL users

Greetings, I've been subscribed to this list for some time and I'd like to start off by thanking everyone who helps out on it. This is my first post to it, so please be gentle :-) I have several offices set up with RedHat and CentOS terminal servers. We are using CentOS 4.6 and RedHat 4.6 on them, GDM for the display manager, and PXES (http://sourceforge.net/projects/pxes/) for the

Hello, Just wonder: is there any way in Dovecot to limit number of active IMAP/POP3 connections for a single user, not touching any other users? Basically, the situation is single user hammering servers by lots of POP3 connections from time to time, and limiting exactly one user could be good.

On 3 Jul 2017, at 9.24, Aki Tuomi <aki.tuomi at dovecot.fi> wrote: > > > > On 02.07.2017 10:53, Alexey Asemov (Alex/AT) wrote: >> Hello, >> >> Just wonder: is there any way in Dovecot to limit number of active >> IMAP/POP3 connections for a single user, not touching any other users? >> Basically, the situation is single user hammering servers by

On 02.07.2017 10:53, Alexey Asemov (Alex/AT) wrote: > Hello, > > Just wonder: is there any way in Dovecot to limit number of active > IMAP/POP3 connections for a single user, not touching any other users? > Basically, the situation is single user hammering servers by lots of > POP3 connections from time to time, and limiting exactly one user > could be good. Easiest would be

Hello Aki, Timo, Thanks a lot for your answers. I'll test with setting mail_max_userip_connections from DB first and tell if it works. If it does not, I'll go with the policy server. Again, thanks a lot. On 03.07.2017 9:29, Timo Sirainen wrote: > On 3 Jul 2017, at 9.24, Aki Tuomi <aki.tuomi at dovecot.fi> wrote: >> >> >> On 02.07.2017 10:53, Alexey Asemov

I can confirm setting mail_max_userip_connections from database in userdb query *does not* work at all. User can still open multiple connection above the limit, seems like it has no effect. I thoroughly checked DB response and it contains proper field name/value. I am using dovecot 2.2.31. Also, I have mail_max_userip_connections set globally in the dovecot configuration file and wonder if

Hi all, We've run into a curious issue. We run CentOS 6.5 with openssh installed (OpenSSH_5.3p1, OpenSSL 1.0.1e-fips 11 Feb 2013 by default). We connect to this server through sftp (Subsystem sftp internal-sftp) using the java JSch library. When opening many sftp channels on a single ssh session OpenSsh does not seem to release the sftp channels closed from the client side when there are

Hey. I wondered a bit which the exact effects of MaxSessions are. The documentation says: Specifies the maximum number of open sessions permitted per net? work connection. The default is 10. And it apparently seems that setting e.g. the following in sshd_config: MaxSessions 0 => no logins possible at all MaxSessions 1 => control channel muxing basically

Other than cranking up logging to debug2, is there a way to better tune logging on a server to see if I am running into max sessions ? On FreeBSD RELENG11 I am periodically seeing connections being refused- 3way handshake not completing or completing and then FINs. Typically, I have a hundred or so connections at one time, but they can bounce up to a few hundred on occasion. Without leaving the

https://bugzilla.mindrot.org/show_bug.cgi?id=2531 Bug ID: 2531 Summary: MaxSessions config parameter name is highly ambigious Product: Portable OpenSSH Version: 7.1p1 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P5 Component: sshd Assignee: unassigned-bugs at

Hello, I've see you answered a problem with simultaneous ssh connections in cygwin. The version I'm using is CYGWIN_NT-5.2 I've change the sshd_config and put the Parameter maxsessions 100 in it. But it doesn't work. Ich have still 10 limited ssh session at onen time. I need at least approx 100 to fix our specific problem. I've also tried mas_ssh_starts=100 but this prevent

OpenSSH 5.1 has just been released. It will be available from the mirrors listed at http://www.openssh.com/ shortly. OpenSSH is a 100% complete SSH protocol version 1.3, 1.5 and 2.0 implementation and includes sftp client and server support. We have also recently completed another Internet SSH usage scan, the results of which may be found at http://www.openssh.com/usage.html Once again, we

OpenSSH 5.1 has just been released. It will be available from the mirrors listed at http://www.openssh.com/ shortly. OpenSSH is a 100% complete SSH protocol version 1.3, 1.5 and 2.0 implementation and includes sftp client and server support. We have also recently completed another Internet SSH usage scan, the results of which may be found at http://www.openssh.com/usage.html Once again, we

https://bugzilla.mindrot.org/show_bug.cgi?id=2532 Bug ID: 2532 Summary: MaxSessions config parameter name is highly ambigious Product: Portable OpenSSH Version: 7.1p1 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P5 Component: sshd Assignee: unassigned-bugs at

On Mon, 20 Aug 2018 14:37:32 +0530 Amit via samba <samba at lists.samba.org> wrote: > >> > >> > >> Query: > >> 1. Is there a limit on max number of connections to share? There > >> must be what's the max? 2. Is using force user, force group good > >> option here? 3. Is there limit on max number of files opened, Can > >> this

Dear Joe. Please find my comments inline. On 08/20/2018 03:40 PM, john doe via samba wrote: > On 8/20/2018 11:32 AM, Rowland Penny via samba wrote: >> On Mon, 20 Aug 2018 14:37:32 +0530 >> Amit via samba <samba at lists.samba.org> wrote: >> >>>>> >>>>> >>>>> Query: >>>>> 1. Is there a limit on max number of

Hi , I have the following requirement . other than following users, any other user sshd connection should be redirected to 2024 instead of port 22. root, ftp, guest So ssh root at ip // should be sent to sshd running at port 22 ssh otheruser at ip // should be sent to sshd running at port 2024 I know that we can do something like this: ssh -o ProxyCommand='ssh -W localhost:2024 cliuser

Hi, I've been experimenting with MaxSessions=0 in the sshd_config and have encountered one unfortunate problem. Once the client authenticates to the server, it ceases to respond to keyboard input. At first glance, it looks like the client is in a hung state and does not time out. If port forwarding was requested on the command-line and the server accepts the request, that continues to work.

yes! how to Limit the number of connection sessions allowed per Internet customer? We here in Lebanon,Beirut have some major ISP''s do it. ============================== by the way i put a question about an example using tcng/ingress on per customer basis and was not answered by any body. thanks. ( i am not pushing it)

On Mon, 20 Aug 2018 11:06:48 +0530 Amit via samba <samba at lists.samba.org> wrote: > Dear Devels, > > samba-4.2.3-10.el7.x86_64 > > # vim smb.conf > [global] > workgroup = MYGROUP > server string = Samba Server Version %v > log file = /var/log/samba/log.%m > max log size = 50 > security = user > passdb