Displaying 12 results from an estimated 12 matches for "ssh_port_t".
2017 Jan 19
2
SELinux upgrade
I have experienced this myself. It is very upsetting.
(Sent from iPhone, so please accept my apologies in advance for any spelling or grammatical errors.)
> On Jan 19, 2017, at 2:57 AM, Fabian Arrotin <arrfab at centos.org> wrote:
>
> log
2017 Jan 19
0
SELinux upgrade
W dniu 19.01.2017 o 10:17, Hal Wigoda pisze:
> I have experienced this myself. It is very upsetting.
It happened on servers with docker installed. I got error message there:
# semanage port -a -t ssh_port_t -p tcp <newport>
Re-declaration of type docker_t
Failed to create node
Bad type declaration at /etc/selinux/targeted/tmp/modules/100/docker/cil:1
OSError: Error
After uninstalling:
# yum remove docker*
Wczytane wtyczki: fastestmirror, langpacks, priorities, versionlock
Rozwi?zywanie zale?no?...
2009 Oct 25
1
Running SSH on a different port (with SELinux)
...H on a different port, I decided
to start a new thread but with SELinux involved.
Assuming that you have SELinux enabled, and that you changed the default port
for SSHD, let say for 1234, when I restart SSHD I don't get any AVC denials.
This is the output of: semanage -l port | grep ssh
ssh_port_t tcp 22
I thought (based on previous SELinux readings) that in order to allow SSHD on
a non-default port you needed to:
semanage port -a -t ssh_port_t -p tcp 1234
That was the theory I read :) Now in practice it seems it is not implemented
yet, or at least by the time R...
2017 Jan 19
2
SELinux upgrade
On 01/19/2017 04:47 AM, Marcin Trendota wrote:
> W dniu 19.01.2017 o 10:17, Hal Wigoda pisze:
>> I have experienced this myself. It is very upsetting.
>
>
> It happened on servers with docker installed. I got error message there:
> # semanage port -a -t ssh_port_t -p tcp <newport>
> Re-declaration of type docker_t
> Failed to create node
> Bad type declaration at /etc/selinux/targeted/tmp/modules/100/docker/cil:1
> OSError: Error
>
> After uninstalling:
> # yum remove docker*
> Wczytane wtyczki: fastestmirror, langpacks, priori...
2017 Jan 19
3
SELinux upgrade
...SSH, because of change in SELinux policy - i have ssh there on
different port and now it's gone.
Thanks to puppet i was able to change SSH port back to default and log
in, but is this expected behavior? I thought minor upgrade shouldn't
break up things?
Or maybe "semanage port -a -t ssh_port_t -p tcp port" isn't enough to
ensure persistency?
--
Over And Out
MoonWolf
2016 Feb 17
3
centos7 :: ks.cfg :: customisation of sshd
...i 's/#Port\ 22/Port 60000/' /etc/ssh/sshd_config
2. sed -i 's/#PermitRootLogin\ yes/PermitRootLogin\ yes/' /etc/ssh/sshd_config
3. enable key access
mkdir -p /root/.ssh
chmod 700 /root/.ssh
cat << EOF >> /root/.ssh/authorized_keys
my_ssh_pubkey
EOF
4. semanage port -a -t ssh_port_t -p tcp 60000
5. firewall-cmd --permanent --zone=public --add-port=60000/tcp
6. systemctl enable firewalld.service
did i miss anything?
Thank you!
Adrian
2016 Feb 18
0
centos7 :: ks.cfg :: customisation of sshd
...sshd_config
> 2. sed -i 's/#PermitRootLogin\ yes/PermitRootLogin\ yes/'
> /etc/ssh/sshd_config
> 3. enable key access
> mkdir -p /root/.ssh
> chmod 700 /root/.ssh
> cat << EOF >> /root/.ssh/authorized_keys
> my_ssh_pubkey
> EOF
> 4. semanage port -a -t ssh_port_t -p tcp 60000
> 5. firewall-cmd --permanent --zone=public --add-port=60000/tcp
> 6. systemctl enable firewalld.service
>
> did i miss anything?
>
The %post section is definitely where you want your commands.
I'd combine the sed commands in points 1 and 2, but that's a small n...
2017 Jan 19
0
SELinux upgrade
...policy - i have ssh there on
> different port and now it's gone.
>
> Thanks to puppet i was able to change SSH port back to default and log
> in, but is this expected behavior? I thought minor upgrade shouldn't
> break up things?
>
> Or maybe "semanage port -a -t ssh_port_t -p tcp port" isn't enough to
> ensure persistency?
>
It's normally enough, there is no need to do it again, except if it lost
all custom settings and booleans. Something to try on a VM (setup CentOS
7.3.1611, modify it without updating it, verify that it works, and then
update...
2017 Jan 19
0
SELinux upgrade
Well, got hit by this too. Ironically, I don't use docker, I think I had it
installed being pulled in for something else.
So, tried the yum remove docker* but no go. When I do semanage port -a -t
ssh_port_t -p tcp <port> I get an error
Bad type declaration at /etc/selinux/targeted/tmp/modules/100/docker/cil:1
which is something that doesn't exist. Tried installing container-selinux,
but so far, the only way to get SSH to work on a default port is to
setenforce 0.
This isn't a reall...
2014 Jul 09
3
Moving sshd listen port
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
I am having a problem getting sshd to run after changing it's default
port. I edit sshd_config and set the desired port, open it with
firewall-cmd and then issue a systemctl start sshd. No error gets
reported on the console but the following is logged in /var/messages
sshd.service: main process exited, code=exited, status=255/n/a
Not a very
2024 Jan 26
1
enable strong KexAlgorithms, Ciphers and MACs in /etc/ssh/sshd_config file on RHEL 8.x Linux OS
On 25.01.24 14:09, Kaushal Shriyan wrote:
> I am running the below servers on Red Hat Enterprise Linux release 8.7
> How do I enable strong KexAlgorithms, Ciphers and MACs
On RHEL 8, you need to be aware that there are "crypto policies"
modifying sshd's behaviour, and it would likely be the *preferred*
method to inject your intended config changes *there* (unless they
2024 Jan 27
2
enable strong KexAlgorithms, Ciphers and MACs in /etc/ssh/sshd_config file on RHEL 8.x Linux OS
...sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented. Uncommented options override the
# default value.
# If you want to change the port on a SELinux system, you have to tell
# SELinux about this change.
# semanage port -a -t ssh_port_t -p tcp #PORTNUMBER
#
#Port 9443
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::
HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
# Ciphers and keying
#RekeyLimit default none
# This system is following system-wide crypto pol...