similar to: Client link utilization

On Sun, Aug 30, 2015 at 6:57 AM, Bostjan Skufca <bostjan at a2o.si> wrote: > Nico, > > those were my thoughts, exacly, except that I was thinking about using "dig > +short HOST | ..." which has the cleanest output of all. Excellent point. I like it! It can get a bit confusing with round-robin DNS, which can give multiple responses. > But there is that initial

Hi there, (context: I was optimizing Roundcube mailbox list server response, and in that 300-400ms response time, around 170ms is spent on single fgets() call which is waiting IMAP repsonse to "SELECT MyMailbox" command) I straced dovecot and of the whole request/response process, around 30ms is spent for everything else, and overwhelming majority of time (150-170ms) is spent for

If I want to specify for LAN addresses that I don't want to deal with host keys, how do I do that? Understanding the risks, knowing almost everyone will say not to do this - it's a horrible idea, but deciding I want to do it anyway. Tired of having to remove entries from known_hosts with the multiple VM's I have that often change fingerprints, and am willing to live with the risks.

Hi folks :-) situation: debian stable (samba version 2:3.2.5-4lenny9) from clients by ftp the transfer of huge file is about 10/11Mb/s (with an ethernet 10/100) by samba came 5/6Mb/s is it correct? In smb.conf I don't have any "strange"options: thanks Pol domain master = yes preferred master = yes os level = 65 workgroup = WORKGROUP netbios name = name Server String = name

Hello fellow Samba users and devs. This is my first post. I've searched documentation far and wide for Windows, Linux, and Samba, and have not been able to shed any light on this issue. I can't get more than 8MB/s during a single file copy stream out of my Samba server over my 100FDX switched network either from Win2K or WinXP (I don't have a *nix client to test with). The network

Thanks for clarification. One question though: As far as I have tested openssh, it logs every unsuccessful authentication attempt on the very moment it becomes unsuccessful, not after the connection is closed (after timeout or when reaching max auth attempts). Is this true or not even for this attack or not? Because if it is true, if there is a IDS system that bans IP after X failed logins,

On Fri, Aug 28, 2015 at 8:48 AM, Bostjan Skufca <bostjan at a2o.si> wrote: > On 27 August 2015 at 05:01, Damien Miller <djm at mindrot.org> wrote: >> Yeah, it's unfortunately quite difficult to implement address matching >> in ~/.ssh/config because of the interplay of Host matching, Hostname >> directives, hostname canonicalisation*, proxy commands, hosts

On Thu, 27 Aug 2015, Bostjan Skufca wrote: > Are you connecting by specifying "ssh HOSTNAME" instead of "ssh IP.IP.IP.IP"? > > If this is the case, then "Host 192.168.*.*" line never matches when > you think it should. > > From ssh_config manpage: > "The host is the hostname argument given on the command line (i.e. the > name is not

I read an article today about keyboard interactive auth allowing bruteforcing. I'm afraid I have minimal understanding of what keyboard-interactive really does. What does it do, and should I have my clients set it to off in sshd_config? --- Scott Neugroschl | XYPRO Technology Corporation 4100 Guardian Street | Suite 100 |Simi Valley, CA 93063 | Phone 805 583-2874|Fax 805 583-0124 |

Hi all, authentication forwarding depends much on the environment it is used in, but generally on shared hosts it is considered insecure, as this documentation and common sense tell us: http://unixwiz.net/techtips/ssh-agent-forwarding.html Anyway, I have an auth forwarding security enhancement proposal. I hope I am not duplicating someone else's words/thoughts, please notify me if this is

On Fri, Aug 28, 2015 at 11:51 PM, Walter Carlson <wlcrls47 at gmail.com> wrote: > On Thu, Aug 27, 2015 at 12:26 AM, Walter Carlson <wlcrls47 at gmail.com> wrote: > >> Perfect, thanks. This winds up working for me (as far as I've tested so >> far.) >> >> Match exec "ping -q -c 1 -t 1 %n | grep '192\.168\.'" >>

You need to disable ?ChallengeResponse? (aka keyboard-interactive) authentication, not password authentication, to protect against this attack. On Jul 22, 2015, at 1:56 PM, Bostjan Skufca <bostjan at a2o.si> wrote: > > And to answer your question about what to do, you have three options: > - disable access to ssh with a firewall > - disable password authentication > -

Hi, is there a particular reason why this feature is "user" based and not "user-pubkey" based? What I mean is that it works for installation with small number of pubkeys per user. But imagine i.e. a GitHub scale - all users logging in as user "git". On each auth request all the keys from database would be fetched and feeded to OpenSSH. Now I am only asking this out

Perfect, thanks. This winds up working for me (as far as I've tested so far.) Match exec "ping -q -c 1 -t 1 %n | grep '192\.168\.'" StrictHostKeyChecking no UserKnownHostsFile none On Wed, Aug 26, 2015 at 11:47 PM, Bostjan Skufca <bostjan at a2o.si> wrote: > (+cc list) > > You could use something in the following manner: > > Match originalhost *

On Mon, 4 Jan 2016, Peter Stuge wrote: > Hi Kaleb, > > Kaleb Himes wrote: > > OpenSSH port Location: https://github.com/kaleb-himes/openssh-portable.git > > I'm afraid this repository is too messy to be useful. :\ > > You need to use the features offered by git to preserve commit ids if > anyone else besides yourself is going to be able to work with this, >

Hello, I haven't found anything useful googling around so I decided to ask here. I have a Linux server running Samba on 100Mbit/s ethernet. If I connect to it using WinXP, mount some share and download files from it it reaches about 9MB/s transfer rate. Using FTP gives even higher transfer rates. BUT when I use linux to connect to (linux!) server, mount shares and download files then

Hello everyone, I would like to ask you for advice on how to approach (or solve) this particular problem. I use Slackware Linux and compile Openssh from source. I prefer to compile it statically so it doesn't get messed up if I update openssl libraries. Up until now this approach was working OK for me. Lately I have been challenged with Slackware64 installations and I have come across a

Hi All Having the strangest performance problem with Samba on 1GB ethernet. Clients are Windows 7. Server is a modern Xeon on an Intel Board with 16GB ram running Opensuse 13.1 with all updates. Samba is 4.1.6. smb.conf doesn't have anything special in it, haven't played around with the socket options. The server is a Xen host, samba is running on the host, not the guest.

hi there, i have a rsync server running in deamon mode, with a 1000 plus clients connecting to it to retrieve files. the problem is that when the clients connects the server has many rsync processes running on it, each of which is around 3.8mb each. Basically the server is running out of memory and grinding to a halt. is there anyway of controlling this or is adding more memory the only option?

On 04/10/2016 10:27 AM, Adrian Minta wrote: > It will be nice if the "SELECT MyMailbox" command will be "SELECT > mymailbox LIMIT 100" or something, to get the first files since only the > last messages are shown to the user. SELECTing a mailbox has nothing to do with FETCHing messages, so above does not make much sense. I don't know dovecot's code, but I