Sponsored Content
Full Discussion: SSH with a nologin account
Top Forums UNIX for Dummies Questions & Answers SSH with a nologin account Post 302548509 by streetfighter2 on Thursday 18th of August 2011 03:02:45 PM
Old 08-18-2011
SSH with a nologin account

Is it possible to SSH with an account that has its shell set to /sbin/nologin?

The reason I ask is because I am running an instance of nagios where I need to use SSH keys to run a check, but I am getting connect errors in Nagios. Also, what is the risk I run into if I just simply change my nagios user's shell from nolgin to /sbin/bash
is this not recommended?

Thanks
 

8 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Shell account SSH Tunnelling?

What do I need to do to be able to connect to an IRC server from work? At work I'm behind a firewall that blocks all IRC connections on standard ports. I read that I could use a shell account and set something up (which I am searching what) that I could use to connect to and tunnel my... (4 Replies)
Discussion started by: KromiX
4 Replies

2. UNIX for Dummies Questions & Answers

need a stable proxy server or free ssh account to visit blocked sites, who can help?

In our country, blogspot.com, twitter.com facebook.com....and more excellent sites are blocked by the Goverment FireWall, who can help me ? thanks a lot for your kind. (2 Replies)
Discussion started by: shuke
2 Replies

3. UNIX for Dummies Questions & Answers

Creating FTP account using SSH (putty)?

Hello, : ) I have a remote access to the server that hosts my joomla, and it does not have cpanel. So I have to do everything manually. I need to have an FTP account to the httpdocs folder because I need to put these info in the config file of joomla (to allow file uploading ...etc) So,... (8 Replies)
Discussion started by: Hayatt
8 Replies

4. Cybersecurity

openssh_4.6 on Unixware 7.1.4 - ssh does not lock account after x attempts

Hi all, I am having some issues with openssh vers OpenSSH_4.6p1 on SCO unixware 7.1.4 when a user accesses the system via ssh and the password is incorrect and more attempts have been made that the lock out limit I find that although there are messages in the syslog the account does not lock... (0 Replies)
Discussion started by: chlawren
0 Replies

5. UNIX for Dummies Questions & Answers

ssh for different user account in a server configuration

Hi team, I am not able to configure the ssh settings for a UserA to do ssh or scp to the UserB in the same server , what could be the best way to do the ssh form UserA to UserB. I've generated the public key in UserA ~/.ssh and kept a copy of that in ~/.ssh of authorized_key of UserB . Still... (1 Reply)
Discussion started by: posix
1 Replies

6. Shell Programming and Scripting

Need help regarding user with nologin

Hi, Need one clarification.. If suppose, I have disabled the login to a particular user XXX, but not deleted the user. So the scripts which must be executed using the user XXX can still be executed using that user or is it not possible..? In our tasks, we are disabling the user XXX, and after... (1 Reply)
Discussion started by: Dpu
1 Replies

7. Red Hat

Su-only account with ssh capability and no interactive login

Hello experts, Is it possible to have an user account on RHEL 6.3 as a su-only account, but with ssh capability and no interactive login? Let me elaborate. Say, we have a cluster of 5 RHEL 6.3 servers and an user account (strmadmin) on each of the server as an su-only... (1 Reply)
Discussion started by: naveendronavall
1 Replies

8. UNIX for Beginners Questions & Answers

Allow AD service account SSH to Linux systems without 2FA

I have Windows AD server and all of the linux computers are joined to AD. Recently, 2FA has been activated, I wish to exclude some of the domain service accounts from 2FA # less /etc/pam_radius_acl.conf sshd:* # /etc/pam.d/sshd auth required pam_sepermit.so auth requisite... (0 Replies)
Discussion started by: davidpar007
0 Replies
nagios_services_plugin_selinux(8)		       SELinux Policy nagios_services_plugin			 nagios_services_plugin_selinux(8)

NAME
nagios_services_plugin_selinux - Security Enhanced Linux Policy for the nagios_services_plugin processes DESCRIPTION
Security-Enhanced Linux secures the nagios_services_plugin processes via flexible mandatory access control. The nagios_services_plugin processes execute with the nagios_services_plugin_t SELinux type. You can check if you have these processes run- ning by executing the ps command with the -Z qualifier. For example: ps -eZ | grep nagios_services_plugin_t ENTRYPOINTS
The nagios_services_plugin_t SELinux type can be entered via the nagios_services_plugin_exec_t file type. The default entrypoint paths for the nagios_services_plugin_t domain are the following: /usr/lib/nagios/plugins/check_ntp.*, /usr/lib/nagios/plugins/check_snmp.*, /usr/lib/nagios/plugins/check_nt, /usr/lib/nagios/plug- ins/check_dig, /usr/lib/nagios/plugins/check_dns, /usr/lib/nagios/plugins/check_rpc, /usr/lib/nagios/plugins/check_tcp, /usr/lib/nagios/plugins/check_sip, /usr/lib/nagios/plugins/check_ssh, /usr/lib/nagios/plugins/check_ups, /usr/lib/nagios/plug- ins/check_dhcp, /usr/lib/nagios/plugins/check_game, /usr/lib/nagios/plugins/check_hpjd, /usr/lib/nagios/plugins/check_http, /usr/lib/nagios/plugins/check_icmp, /usr/lib/nagios/plugins/check_ircd, /usr/lib/nagios/plugins/check_ldap, /usr/lib/nagios/plug- ins/check_nrpe, /usr/lib/nagios/plugins/check_ping, /usr/lib/nagios/plugins/check_real, /usr/lib/nagios/plugins/check_time, /usr/lib/nagios/plugins/check_smtp, /usr/lib/nagios/plugins/check_dummy, /usr/lib/nagios/plugins/check_fping, /usr/lib/nagios/plug- ins/check_mysql, /usr/lib/nagios/plugins/check_pgsql, /usr/lib/nagios/plugins/check_breeze, /usr/lib/nagios/plugins/check_oracle, /usr/lib/nagios/plugins/check_radius, /usr/lib/nagios/plugins/check_cluster, /usr/lib/nagios/plugins/check_mysql_query PROCESS TYPES
SELinux defines process types (domains) for each process running on the system You can see the context of a process using the -Z option to ps Policy governs the access confined processes have to files. SELinux nagios_services_plugin policy is very flexible allowing users to setup their nagios_services_plugin processes in as secure a method as possible. The following process types are defined for nagios_services_plugin: nagios_services_plugin_t Note: semanage permissive -a nagios_services_plugin_t can be used to make the process type nagios_services_plugin_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. BOOLEANS
SELinux policy is customizable based on least access required. nagios_services_plugin policy is extremely flexible and has several bool- eans that allow you to manipulate the policy and run nagios_services_plugin with the tightest access possible. If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn on the authlo- gin_nsswitch_use_ldap boolean. Disabled by default. setsebool -P authlogin_nsswitch_use_ldap 1 If you want to deny any process from ptracing or debugging any other processes, you must turn on the deny_ptrace boolean. Enabled by default. setsebool -P deny_ptrace 1 If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled by default. setsebool -P domain_fd_use 1 If you want to allow all domains to have the kernel load modules, you must turn on the domain_kernel_load_modules boolean. Disabled by default. setsebool -P domain_kernel_load_modules 1 If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default. setsebool -P fips_mode 1 If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default. setsebool -P global_ssp 1 If you want to allow confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled by default. setsebool -P kerberos_enabled 1 If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default. setsebool -P nis_enabled 1 If you want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Disabled by default. setsebool -P nscd_use_shm 1 NSSWITCH DOMAIN
If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server for the nagios_services_plug- in_t, you must turn on the authlogin_nsswitch_use_ldap boolean. setsebool -P authlogin_nsswitch_use_ldap 1 If you want to allow confined applications to run with kerberos for the nagios_services_plugin_t, you must turn on the kerberos_enabled boolean. setsebool -P kerberos_enabled 1 FILE CONTEXTS
SELinux requires files to have an extended attribute to define the file type. You can see the context of a file using the -Z option to ls Policy governs the access confined processes have to these files. SELinux nagios_services_plugin policy is very flexible allowing users to setup their nagios_services_plugin processes in as secure a method as possible. STANDARD FILE CONTEXT SELinux defines the file context types for the nagios_services_plugin, if you wanted to store files with these types in a diffent paths, you need to execute the semanage command to sepecify alternate labeling and then use restorecon to put the labels on disk. semanage fcontext -a -t nagios_services_plugin_exec_t '/srv/nagios_services_plugin/content(/.*)?' restorecon -R -v /srv/mynagios_services_plugin_content Note: SELinux often uses regular expressions to specify labels that match multiple files. The following file types are defined for nagios_services_plugin: nagios_services_plugin_exec_t - Set files with the nagios_services_plugin_exec_t type, if you want to transition an executable to the nagios_services_plugin_t domain. Paths: /usr/lib/nagios/plugins/check_ntp.*, /usr/lib/nagios/plugins/check_snmp.*, /usr/lib/nagios/plugins/check_nt, /usr/lib/nagios/plug- ins/check_dig, /usr/lib/nagios/plugins/check_dns, /usr/lib/nagios/plugins/check_rpc, /usr/lib/nagios/plugins/check_tcp, /usr/lib/nagios/plugins/check_sip, /usr/lib/nagios/plugins/check_ssh, /usr/lib/nagios/plugins/check_ups, /usr/lib/nagios/plug- ins/check_dhcp, /usr/lib/nagios/plugins/check_game, /usr/lib/nagios/plugins/check_hpjd, /usr/lib/nagios/plugins/check_http, /usr/lib/nagios/plugins/check_icmp, /usr/lib/nagios/plugins/check_ircd, /usr/lib/nagios/plugins/check_ldap, /usr/lib/nagios/plug- ins/check_nrpe, /usr/lib/nagios/plugins/check_ping, /usr/lib/nagios/plugins/check_real, /usr/lib/nagios/plugins/check_time, /usr/lib/nagios/plugins/check_smtp, /usr/lib/nagios/plugins/check_dummy, /usr/lib/nagios/plugins/check_fping, /usr/lib/nagios/plug- ins/check_mysql, /usr/lib/nagios/plugins/check_pgsql, /usr/lib/nagios/plugins/check_breeze, /usr/lib/nagios/plugins/check_oracle, /usr/lib/nagios/plugins/check_radius, /usr/lib/nagios/plugins/check_cluster, /usr/lib/nagios/plugins/check_mysql_query Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels. COMMANDS
semanage fcontext can also be used to manipulate default file context mappings. semanage permissive can also be used to manipulate whether or not a process type is permissive. semanage module can also be used to enable/disable/install/remove policy modules. semanage boolean can also be used to manipulate the booleans system-config-selinux is a GUI tool available to customize SELinux policy settings. AUTHOR
This manual page was auto-generated using sepolicy manpage . SEE ALSO
selinux(8), nagios_services_plugin(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8) nagios_services_plugin 14-06-10 nagios_services_plugin_selinux(8)
All times are GMT -4. The time now is 07:48 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy