similar to: Openssh connection closes from time to time. why?

Hi! There are configuration knobs (TCPKeepAlive) to enable/disable the use of TCP keepalives both in the ssh client and server. Unfortunately some UNIX systems default to SO_KEEPALIVE=on and some to =off. This may even be settable on a per host basis (OpenBSD default net.inet.tcp.always_keepalive=1 ???). For the TCPKeepAlive configuration knob I would like to propose changes along the lines

Running CentOS 7 on workstation and having a problem with ssh disconnects. My ssh_config contains: Host * TCPKeepAlive yes ServerAliveInterval 30 ServerAliveCountMax 300 and sshd_config on the server contains: TCPKeepAlive yes ClientAliveInterval 60 ClientAliveCountMax 300 Have I missed any setting needed to prevent these random disconnects? I don't think there is anything wrong with the

On 02/12/2018 07:24 PM, Liam O'Toole wrote: > On 2018-02-12, H <agents at meddatainc.com> wrote: >> Running CentOS 7 on workstation and having a problem with ssh >> disconnects. My ssh_config contains: >> >> Host * >> TCPKeepAlive yes >> ServerAliveInterval 30 >> ServerAliveCountMax 300 >> >> and sshd_config on the server contains:

Hey everyone, I wanted to add support for denying PTY allocation through OpenSSH. I'm not certain if this is quite thorough enough for all cases, but for me it might work for the moment. I know that you can currently do this through authorized_keys, but as far as I know that only works for an actual key. In my use case, I wanted a user with no password which is forced to run a specific

Hi all I have an ADSL modem which reboots when there is a power cut and the inverter (UPS) kicks in. Internet access is down for a duration of 1 to 2 minutes while the modem boots. I have many SSH tunnels and shells active. Due to the default "TCPKeepAlive On" setting, these sessions are terminated almost immediately. I tried the following configuration: sshd_config on server:

I have set /etc/ssh/sshd_config with: KeepAlive yes ClientAliveInterval 3 However, no KeepAlive type messages seem to be sent. I've verified this by looking at the network lights, which don't flicker every 3 seconds. I am attempting to keep interactive ssh sessions alive longer. If don't type anything for about 2 minutes, the sessions close. If I run a "idle"

Hello, I am testing ssh with occasional network disconnection between server and client during these days. I found ssh sometimes hangs if the disconnection happens after the connection is established but before ssh_exchange_identification completes. The ssh configuration files show that both client and server alive options are set. In /etc/ssh/ssh_config: # Send keepalive messages to the server.

Dear Centos Users: I installed Centos 7 on my server a few months ago. While using ssh, there is always a strange message "Write failed: Broken pipe?. It forces quit of SSH. It?s really annoying as it happens very often with irregular time interval - from a couple of minutes to a few hours. I have been working using Linux (Red Hat, Fedora and Centos) over 15 years. This didn?t happen for me

Since I have lots of filtering rules in thunderbird I was thinking of using sieve instead. I want to filter incoming mail into subdirectories. like "from" store at folder "old". the script is: require ["fileinto", "envelope"]; if envelope :is "from" "eliezer at test.dom" { fileinto "old"; } else { # The rest goes into

Hey John, I do not require encryption at all, it's a secure and internal channel but it requires me to connect via either pptp or l2tp. This is the reason I am asking. I had the chance of finding the SoftEther Project which gives a lot in terms of VPN Client and Server. At: http://www.softether-download.com/en.aspx But yet to try it. Also they have all sorts of beta versions but not

On Tuesday 10 January 2017 08:53:17 John R Pierce wrote: > On 1/9/2017 7:11 PM, fred roller wrote: > > On Mon, Jan 9, 2017 at 12:04 PM, Frank Cox<theatre at melvilletheatre.com> > > > > wrote: > >> That sounds like a weak signal from your wifi transmitter. > > > > Or signal interference. Where is the antennae located on the server? > > Ran

Hey Gordon, I do not have any security issue in this network. I need to connect to a remote network on a secure network. The options are pptp or l2tp(no ipsec encryption) so I do want to use l2tp like in (lac\lns) and I am looking for a client for CentOS. Note that it works in ubuntu so it is possible to achieve the same with CentOS but I do not know what is behind the gui that initiates the

I have a server currently connecting to a pptp remote server. This server(lns\lac) has the option for pptp connections and l2tp connections. The l2tp connections are not using ipsec encryption at all. I have seen couple guides\tutorials on the internet: - https://raymii.org/s/tutorials/IPSEC_L2TP_vpn_on_CentOS_-_Red_Hat_Enterprise_Linux_or_Scientific_-_Linux_6.html -

I want to configure IPV6 on the system and not use some auto ipv6 config. I have tried to use IPV6_AUTOCONF=no in interface script dose not affect anything. ifcfg-eth0: GATEWAY=192.168.1.254 IPV6INIT=no IPV6_AUTOCONF=no BROADCAST=192.168.1.255 BOOTPROTO=none NAME="" NM_CONTROLLED=yes MACADDR="" TYPE=Ethernet DEVICE=eth0 NETMASK=255.255.255.0 MTU="1500"

I want to make sure that while compiling as root nothing will break down inside the machine. I want to compile software on a Xeon SERVER. The basic issue is that there is a recommendation to not compile it as a root user. I have compiled software as a root user more then once and I am not sure why would there is a need to run it as non-root user? I have taken a look at the /proc/ FS but I do

Hi, I am not sure this is a bug in Openssh or not. I am running Openssh 4.1p1. with openssl 0.9.7g Scenario: Due to audit enabled on the system, I will need to set Uselogin to yes so that audit will track system call. But when try to login to system with a LDAP user. I get the following. eg: [n113839 at r3ent15pc ~]$ ssh tfstst1 -l ntesting1 ntesting1 at tfstst1's password: Login incorrect

You could say the same thing about computers in general: I hate them, they automated many tasks in life and took many jobs out of the market!. Eliezer ---- Eliezer Croitoru Linux System Administrator Mobile: +972-5-28704261 Email: eliezer at ngtech.co.il -----Original Message----- From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of Gary Stainburn Sent: Monday, January 16, 2017

Doing a search in the list archives, I see that in 2001/2002 there was a patch made available for IdleTimeout keyword, for example: http://marc.info/?l=openssh-unix-dev&m=99838019319356&w=2 Looks like that patch did not make it in the following versions of OpenSSH - is there a reason why - any chance of the patch getting back in? I do know about ClientInterval, but I think I need

https://bugzilla.mindrot.org/show_bug.cgi?id=2282 Bug ID: 2282 Summary: When group member count exceeds 126, config reliant fails Product: Portable OpenSSH Version: 5.3p1 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P5 Component: sftp-server

Hi there ! I have an issue with my OpenSSH + PAM configuration on a RedHat Advanced server 2..1 I want to authenticate users connecting to a server using ssh against a radius server. The radius client/server part works ok when I test it with some utilities. I think I have a problem with my ssh which does not pass the username/password to my pam sshd module. I have upgraded to openssh-4.2p1.