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11 views

Sendmail : save emails into files

I use sendmail to manage the emails of my website. I'm testing features which require to send emails, and I'd like to receive these emails in a local directory of my server, store them as text files ...
1
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0answers
38 views

redhat satellite + downgrade procedure - how

I used the RHN - red-hat satellite version 5.x in order to install errata patch: ( on linux version 6.x ) glibc-2.12-1.166.el6_7.7.x86_64 while the curent patch on my linux was: glibc-devel-2....
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0answers
23 views

Jenkins configure from command line?

Is it possible to setup a Jenkins from command line in more detail? So far I just install Jenkins and Plugins wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat-stable/jenkins....
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1answer
77 views

Possible to configure DHCP server to only hand out IP's to PXE clients

Is there a way when you are setting up a Red Hat DHCP server for PXE boot to ONLY hand out IPs to PXE clients? We already have a Windows DHCP server on the network (a server which we do not manage)and ...
1
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2answers
60 views

Running a service as root in RHEL 6

I am trying to force Kibana to listen on port 80 therefore it needs to run as root. How can I do this? The init script is as follows: #!/bin/sh # Init script for kibana # Maintained by # Generated by ...
1
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0answers
34 views

Warning: mysql_connect(): Host 'ip-X-X-X-X.ec2.internal' is blocked because of many connection errors

I'm using following system: $ cat /etc/redhat-release Red Hat Enterprise Linux Server release 7.1 (Maipo) $ uname -a Linux ip-X-X-X-X.ec2.internal 3.10.0-229.14.1.el7.x86_64 #1 SMP Tue Aug 25 11:21:...
1
vote
1answer
95 views

cloud-init does not insert instance level ssh keys in gce

I am passing (YAML representation) metadata: items: - key: sshKeys value: root:ssh-rsa AAAAB... non@nan when creating a gcloud instance. But I cannot ssh to the instance $ ssh 139.242.197....
1
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1answer
386 views

How to remember/cache or specify private key passphrase for Ansible

Just starting out with Ansible, I have set up an Asible user on the client machine and created a set of keys from OpenSSL. I am running Ansible under my own account. I have specified the user and ...
0
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1answer
47 views

Does a Linux DHCP server have IP conflict prevention?

Scenario: We are migrating DHCP off our Cisco gear and onto a Red Hat 6.7 server. I am concerned about clients who will not release and renew for several days. Since the new server will not have any ...
0
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0answers
82 views

Keycloak - restricting access to /auth

Keycloak 1.7 Standalone I have a tomcat app connected with the keycloak adapter. As soon my app is invoked it goes to keycloak sso url $KEYCLOAK_URL/auth/realms/$REALM/protocol/openid-connect/auth ...
5
votes
3answers
449 views

How to fine tune TCP performance on Linux with a 10Gb fiber connection

We have 2 Red Hat servers that are dedicated for customer speedtest. They both use 10Gb fiber connections and sit on 10Gb links. All network gear in between these servers fully support 10Gb/s. Using ...
1
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2answers
59 views

postgresql on iscsi that refuses to start … on server's boot - Redhat 7.1

I installed a postgresql database on Redhat 7.1 and I decided to move the database on an ISCSI device (LUN) inside a logical volume, mounted at starting of the machine (xfs formatted). The mounting ...
0
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0answers
28 views

do not allow multiple sessions if user have different IPs

I am running Red Hat Enterprise Linux 6.6 and for authentication we use LDAP authentication. We have running application on a server (doesn't really matter which one it is) and the way application ...
0
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0answers
32 views

dogtag CRL profile

I am attempting to add a CRL Distribution Point to a Dogtag CA Certificate Profile. Using the caServerCert profile as a template, I copied it to a profile named serverCertTest and added the following ...
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0answers
11 views

If i have satellite subscription in redhat, what other subscription i need to all my servers? [duplicate]

I am having environment of 150 Server, i have satellite server which is having active subscription with redhat. I need to know what kind of other subscription i need for my 140 servers to get latest ...
3
votes
1answer
158 views

Cant enable quotas on XFS file system

I'm trying to enable quotas on Centos 7 I ran yum install quota Edited fstab: /dev/mapper/centos-root / xfs defaults,usrquota,grpquota 0 0 UUID=6c443910-a7e9-4e97-...
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0answers
87 views

Automout user home directories with ldap

I know this question has been asked earlier. I am still not able to solve this error. Scenario: When user will login to ldap server its home directory will change to /home/guests/username My ...
0
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1answer
64 views

AWS port unreachable on REHL

I know there are tons of posts about not being able to connect to an AWS ec2 instance, but this is not quite the same. It is similar to What causes the 'Connection Refused' message? but that ...
1
vote
0answers
40 views

Network Kickstart RHEL 5 vs Kickstart RHEL 6, vmlinuz doesn't support nameservers?

I use PXE + kickstart in conjunction with Foreman, to install new hosts over the network. I've run into a problem while trying to install Red Hat 5. It looks like the older vmlinuz in RH5 does not ...
0
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1answer
41 views

RHEL6 and GPG 2.0.14: What is a working keyserver config with proxy?

The documented solution doesn't seem to actually work. The documented solution: In ~/.gnupg/gpg.conf change to use an HTTP keyserver and honor the environment variable http_proxy. The proxy I'm using ...
0
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0answers
30 views

In a virtual lab environment, I have a pxe server timing out

I've built a pxe server using CentOS 7. The client times out with a message of: Connection timed out (http://ipxe.org/4c126035) When I look at that link, it says 528 rc = -ETIMEDOUT;, but ...
4
votes
3answers
174 views

how to change the startup order of linux init scripts in Redhat, Centos

From this changing How to change Linux services startup/boot order? changing the values of the symbolic links it is evident that startup order is changed. In debian derivatives we use update-...
2
votes
2answers
409 views

RHEL Nginx SSL versus non SSL performance huge difference.

I'm in the process of setting up an Nginx 1.8 reverse proxy. In short - Serving HTML content HTTP traffic is up to 50x faster than HTTPS. Serving ProxyPass HTTP traffic is up to 7x faster than ...
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votes
1answer
59 views

how to find out the clients connects to the proxy server in redhat linux

Is there any way to find out the client machines connected to the particular proxy server in redhat linux , i am using redhat linux version 6 and squid configured in it
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0answers
13 views

localuser.sh hanging in RHEL

As per my need i want to do the following on startup of RHEL. a) add route to path b) start an application name myapp stored in /root/Desktop/app for this i made a shell script named startMyApp in /...
0
votes
1answer
57 views

How to convert ip configuration from dhcp to static using nmcli?

is there a way to use nmcli to convert dhcp acquired IP configuration (IP,Mask,Gateway,DNS) to static configuration? Preferable in a way that i can use in a script? Thanks
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0answers
115 views

How can I distinguish between SAN zoning and LUN assignment issues on RHEL6?

From Red Hat Enterprise Linux 6 how can I tell the difference between a SAN zoning problem (e.g. cannot reach the storage at all) versus a LUN masking issue (e.g. LUNs not assigned to the right HBA ...
0
votes
1answer
58 views

rsyslog server listen only on tcp 514

I'm trying to set rsyslog client- server to listen to tcp messages with port other then 514, however it doesn't work. Only when using 514 it receives messages. I'm using EC2 vms. input(type="imtcp" ...
4
votes
0answers
53 views

SELinux: manually changing files in /etc/selinux/targeted/contexts/files/

I'm setting up a CentOS 7 server in which the /home directory has to be located on another partition and then mounted with bind-mount. So: /data/homes should be bind-mounted to /home. The problem is ...
2
votes
1answer
40 views

How to properly configure a classless reverse zone in BIND 9

I'm trying to configure reverse DNS for a sub Class C block. My ISP has delegated 128/25.2.0.192.in-addr.arpa. I've spent a good few hours reading everything I can find on classless reverse map ...
0
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0answers
72 views

fcoemon: error response from lldpad: error

I have created and configured the red hat cluster and as I was just going through logs to see if every thing is fine, thats when I saw these errors. Not sure whats with these errors. Please advise. ...
0
votes
1answer
240 views

How to make node join the cluster (Pacemaker, Corosync 2 node setup) automatically after disconnection / unplugging?

I have a 2 node cluster running Corosync and Pacemaker. If I physically unplug the network cable on one node, the other one becomes standalone. But when I plug the network cable back in, I want it ...
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votes
1answer
47 views

Can I remove a directory “Cancer ” and leave all other sub directories intact for directory “/home/John/Cancer/MillionDollars”?. Bash / Linux [closed]

Get rid of directory “Cancer” but keep directory “Million Dollars” Directory: /home/John/Cancer/MillionDollars Desired Directory: /home/John/MillionDollars This is for later ...
6
votes
1answer
250 views

What does the “1:” before the package name mean in yum.log

I would be very glad if someone could explain what the 1: before the package name signifies.
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0answers
15 views

What is the Red Hat equivalent of the windows “Register this connections Address in DNS”

Hi I have a collection of RHEL6 server each has 3 static IPS and interfaces Currently when we nslookup the hostname from another server it returns all 3 interfaces from the DNS server (windows) We ...
0
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0answers
36 views

Use of PTPd on RedHat/CentOS

I need to create a reliable and accurate synchronization between two CentOS 6 machines connected through a direct Ethernet connection. I've seen that on Linux several implementation of the IEEE 1588 ...
0
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1answer
86 views

Add latency and random packet drops excluding SSH packets

I want to add some random delay/drop to all packets excluding SSH packets. I can do that to all packets this way: tc qdisc change dev $NIC root netem delay 100ms 10ms 25% tc qdisc change dev $NIC ...
0
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0answers
12 views

Preventing privileged users from running “udevadm trigger”

My situation is this: we run Red Hat 6.x for some Oracle database servers, and use udev rules to maintain ownership and permissions of raw volumes (LUNs from SAN) so that Oracle can use them as ASM ...
0
votes
1answer
58 views

RHEL: iscsiadm is not able to login in any port except 3260

Discovery is successful: [root@ncdqd0110 iqn.11351.com.xxx:AAA]# iscsiadm -m discoverydb -t sendtargets -p 127.0.0.1:54541 --discover 127.0.0.1:54541,-1 iqn.2495.com.xxx:AAA Login is failing: [...
0
votes
0answers
21 views

How to I diagnose downloads slowing over time?

I am trying to track down a strange networking problem. Basically, a http download from a tomcat server is slowing down over time. For example, the download speed starts at 700kb, then slows to 650, ...
0
votes
1answer
27 views

Site to site VPN from Amazon EC2 to Checkpoint device

I have an EC2 with Red Hat 7 in AWS and I need to connect it to a network via VPN. I followed the instructions here https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/...
0
votes
4answers
83 views

Migrating really old RedHat server to cloud

I've got a client with a really, really, really old PHP3 webapp that runs on an ancient consumer-grade PC with RedHat 7.somethingOld. I've got backups of the software and database but he's very tight ...
2
votes
0answers
15 views

Windows directories keeps getting unmounted on two identical Red Hat servers

Was refered here by the kind people at stack overflow. We have a pretty severe problem at my research center. I have, together with IT, set up an infrastructure like this: Users use their laptops at ...
0
votes
1answer
10 views

Display RHEL 7.0 Server in Windows Explorer Network List

How can I get my RHEL to simply show up in the network list in Windows Explorer? I have joined my RHEL to my active directory domain successfully. I can also ping and telnet into the machine from any ...
2
votes
2answers
68 views

Azure Red Hat VM

I see lots of stuff in the news about Red Hat partnering with MS Azure, and articles seem to indicate you can fire up a Red Hat VM on Azure now. But when I go to create a new VM, I can't find Red Hat ...
1
vote
1answer
35 views

Increase the size of ext3 filesystem on RHEL, 2.6.18-128, no LVM

i have to increase the size of my ext3 partition (sdd1) mounted on NetApp LUN (disk sdd, no other partition is mounted here). I already resized the LUN and refreshed new size with iscsiadm. Empty ...
1
vote
2answers
163 views

RHEL with two interfaces - Can't ping/ssh into second interface

I have a RHEL Server 'foo' with two interfaces: eth0: inet addr:172.16.15.75 Bcast:172.16.15.95 Mask:255.255.255.224 eth1: inet addr:172.16.15.242 Bcast:172.16.15.247 Mask:255.255.255.248 ...
0
votes
0answers
33 views

rsyslog working differently when started as service

I have configured rsyslog to read from a file /root/test.log and forward what it reads on TCP If I start rsyslog directly: [root@servername ~]# rsyslogd it works as I expect (yay). However it does ...
0
votes
2answers
34 views

logrotate issue with date appending

I have an Apache server (2.2) running in RHEL 6.3, with the following logrotate configuration: # Rule for Apache logs /var/opt/apache/logs/*log { compress missingok notifempty daily ...
0
votes
1answer
94 views

How to test GeoIP .dat librairie in local

I'm on a projet where I have to implement GeoIP on a Redhat Apache instance. For now, i'm only testing the configuration in local. Here it is : <IfModule mod_geoip.c> GeoIPEnable On ...