similar to: Time to add exponential backoff for SSH interactive login failures?

hi, I wrote a patch to openssh sshd.c which enables "exponential backoff", so that an attacker cannot brute force your password by making hundreds of login attempts. here is the code: http://sam.nipl.net/sshd-backoff/ An attacker who fails to login is locked out (by IP address) for 1 minute, and the lockout period doubles for each failed login after that. Normally three logins are

I got a packet capture of one of the SSH2 sessions trying to log in as a couple of illegal usernames. The contents of one packet suggests an attempt to buffer overflow the SSH server; ethereal's SSH decoding says "overly large value". It didn't seem to work against my system (I see no strange processes running; all files changed in past ten days look normal). I am

> This is a really nice idea. However, I'm not so hot on making a core > utility such as OpenSSH reliant on a library that isn't by default > available on most platforms. It could be done differently. I'm surprised that you think berkeley db would not be available on most platforms by default. Anyway it should be a compile-time (and run time) configurable option, so if the

>> Isn't an SSL based tunnel all TCP? > Not in the case of OpenVPN. I'm not sure about the commercial > offerings. Correct. My recollection is that OpenSSL uses TCP for the setup and management of the tunnel (e.g. authentication and key exchange) and uses UDP to carry the actual payload... each tunneled IP packet is wrapped in a UDP datagram. That way, the UDP transport

Hello Samba people, I have been successfully using Samba for several years, across many minor versions of Samba across many minor versions of Linux kernel 2.4.x and 2.6.x, against a Windows 2000 and then in the past couple of years 2003 AD Domain. This morning, something broke... Setting the stage: RedHat Fedora based Linux box, FC8, updated over time using 'yum update'...,

When we make a TCP connection we have to make multiple underlying connect(2) calls, once for each address returned by getaddrinfo. Unfortunately this meant that we lost the errno from any of these calls: $ nbdsh -c 'h.connect_tcp ("localhost", "nbd")' nbd.Error: nbd_connect_tcp: connect: localhost:nbd: could not connect to remote host This commit saves the errno from

On 04/06/2017 12:50 PM, George Kontostanos wrote: > On Thu, Apr 6, 2017 at 7:10 PM, Robert Moskowitz <rgm at htt-consult.com> wrote: >> It seems dovecot is impatient with connecting with mysql, as I see in >> maillog entries like: >> >> Apr 6 11:48:30 z9m9z dovecot: dict: Error: mysql(localhost): Connect failed >> to database (postfix): Can't connect to

I compiled OpenSSH 3.6.1p1 on NCR MP-RAS v4.3 (or at least "uname -a"'s output of 4.0.3.0 suggests v4.3, I'm not positive). I was able to compile zlib (1.1.4) and openssl (0.9.7a) with little trouble. OpenSSH took hand-hacking the includes.h file as follows: diff -cr openssh-3.6.1p1/includes.h openssh-3.6.1p1-customized/includes.h *** openssh-3.6.1p1/includes.h Sun Oct 20

Dear Samba Group, I recently updates our samba addc's to 4.18.6 (from 4.7.7). We use roaming profile and a login script which queries active shares and printers on the logon servers. Since the update i see a lot of rpcd_winreg processes if an user logs on. It are around 40 of these processes each consuming around 60MB. The servers have 1-2GB of ram assigned so they start swapping everytime an

As recommended by Volker Lendecke I added the option. rpcd_winreg:idle_seconds = 5 Now on 2GB Servers swapping is avoided and on 1Gb Servers the server goes back to normal in ~5 seconds after the logon process has finished. Am 10.10.2023 um 13:58 schrieb Achim Gottinger via samba: > Dear Samba Group, > > I recently updates our samba addc's to 4.18.6 (from 4.7.7). We use roaming

Dear List... I have a similar question to the one that is copied below. I am trying to get instructions for configuring OpenSSH to use PKI based authentication. I understand that I can provide the server with the public keys of the client machines to get this working (one way) but the next step is where I would like to go... I want SSHD to authenticate my users based upon the "Root

Any one know is there any package or function to generate bivariate exponential distribution? I gusee there should be three parameters, two rate parameters and one correlation parameter. I just did not find any function available on R. Any suggestion is appreciated. -- View this message in context:

Is the matrix exponential available in some package? The cannonical reference is "Nineteen dubious ways to take the exponential of a matrix". (Love that title) Terry T.

I am learning glm function, but how do you fit data using exponential distribution with glm? In the help file, under "Family Objects for Models", no ready made option seems available for the distribution as well as for other distributions satisfying GLM requirements not listed there.

Hi Guys, Im trying to find the exponential of a matrix. Can someone please help me do this? Thanks a lot _________________________________________________________________ View photos of singles in your area Click Here =1&lage=18&uage=55&cl=14&sl=0&dist=50&po=1&do=2&trackingid=1046138&r2s=1&_t=773166090&_r=WLM_EndText

Hi all, I have a dataset which consists of 2 columns. I'd like to plot them on a x-y scatter plot and fit an exponential trendline. I'd like R to determine the equation for the trendline and display it on the graph. Since I am new to R (and statistics), any advice on how to achieve this will be greatly appreciated. Many thanks, Chris -- View this message in context:

We need help.... We are doing a project for a statistical class in and we are looking at world record times in different running events over time. We are trying to fit the data with a negative exponential but we just cant seem to get a function that works properly. we have on our x-axis the date and on the y-axis the time(in seconds). So as you can imagine, the times have decreased and appear to

Hey, I am using the ets() function in the forecast package to find out the best fit parameters for my time-series. I have about 50 sets of time series data. I'm currently using the function as follows: ets(x,model="AZZ",opt.crit="mse") As to my observation about 5-10 of them have been identified by ets to have a trend and an alpha, beta values have been thrown up -

Hi there, I'm quite new to R (and statistics), and I like it (both)! But I'm a bit lost in all these packages, so could someone please give me a hint whether there exists a package for fitting exponential curves (of the type t --> \sum_i a_i \exp( - b_i t)) on a noisy signal? In fact monoexponential decay + polynomial growth is what I'd like to try. Thanks in advance,

Hello! I have a problem which I have tried to solve for several days now.. I have plottet a lineplot.CI in the library "sciplot", and I am trying to plot it with a logaritmic y-axis (with exponential base). The problem is that; when I type "log "y"", the axis transforms into the logaritmic of base 10. I wonder if someeone could tell me how to specify that I would