Hi Team,

We have folder called /opt/app
inside /opt/app we are running applications as elasticsearch and kibana in below respective folders.

/opt/app/elasticsearch
/opt/app/kibana

and processes are running in those folders as we.

Due to space issue. Now i want to mount to /opt/app folder without any data loss on the fly?
is it possible or not? if possible could you please suggest me what is the best way to proceed?

I am installing spacewalk on RHEL7.

I was following this article.

https://github.com/spacewalkproject/spacewalk/wiki/HowToInstall

I am getting the following error when i execute,
yum -y install spacewalk-postgresql


Error: Package: jboss-jstl-1.2-api-1.0.3-15.1.el7.noarch (epel)
           Requires: mvn(org.jboss.spec.javax.servlet:jboss-servlet-api_3.0_spec)
Error: Package: jboss-jstl-1.2-api-1.0.3-15.1.el7.noarch (epel)
           Requires: mvn(org.jboss.spec.javax.el:jboss-el-api_2.2_spec)
Error: Package: jpam-0.4-28.el7.x86_64 (spacewalk)
           Requires: apache-commons-beanutils
Error: Package: jboss-jsp-2.2-api-1.0.1-15.1.el7.noarch (epel)
           Requires: mvn(org.jboss.spec.javax.servlet:jboss-servlet-api_3.0_spec)
Error: Package: spacewalk-jpp-workaround-2.3.5-1.el7.noarch (spacewalk)
           Requires: apache-commons-validator
Error: Package: struts-1.3.10-14.1.el7.noarch (epel)
           Requires: mvn(commons-validator:commons-validator)
Error: Package: apache-commons-chain-1.2-12.1.el7.noarch (epel)
           Requires: mvn(commons-digester:commons-digester)
Error: Package: python-cheetah-2.4.4-4.el7.x86_64 (epel)
           Requires: python-pygments
Error: Package: spacewalk-jpp-workaround-2.3.5-1.el7.noarch (spacewalk)
           Requires: apache-commons-digester
Error: Package: jboss-jsp-2.2-api-1.0.1-15.1.el7.noarch (epel)
           Requires: mvn(org.jboss.spec.javax.el:jboss-el-api_2.2_spec)
Error: Package: …

Dear Experts

We are running rhel7 that is redhat enterprise linux 7.3 and our application sugarcrm requires php-imap but rhel7 does not support php-imap hence downloaded epel and tired to install I get below dependency issue
downloaded and install php56-php-imap from rpm finder below error,
rpm -Uvh php56-php-imap-5.6.31-1.el7.remi.x86_64.rpm
error: Failed dependencies:
        php56-php-common(x86-64) = 5.6.31-1.el7.remi is needed by php56-php-imap-5.6.31-1.el7.remi.x86_64
[root@crm1 indar]#
should I have to disable rhel repo and depend on epel and install if yes can you please provide the steps for epel for rhel7
thanks in advance

Hi,

how to teach winscp remember password. Every time entering password is pain for me. please advise

Hello ,

I have a problem with interfaces on a multihomed topology. My interfaces can not ping each other and can not ping theirselves too
sysctl as given below.

But it is able to ping the interface ip when i directly write ping 37.123.98.142 , if the both interface are not able to ping this interface's ip how does it ping it or from where ?

I have to let them have access each other how shoud i do it ?

Note: loopback interface activated
Note2: em interfaces are all down

[root@spd network-scripts]# sysctl -p
net.ipv4.ip_forward = 1
net.ipv4.conf.p1p1.rp_filter = 2
net.ipv4.conf.p1p2.rp_filter = 2
net.ipv4.conf.all.rp_filter = 2
net.ipv4.conf.default.rp_filter = 2
net.ipv4.conf.lo.rp_filter = 2
net.ipv4.conf.p1p1.accept_local = 1
net.ipv4.conf.p1p2.accept_local = 1
net.ipv4.conf.all.accept_local = 1
net.ipv4.conf.default.accept_local = 1
net.ipv4.conf.lo.accept_local = 1
net.ipv4.conf.default.arp_filter = 0
net.ipv4.conf.all.arp_filter = 0
net.ipv4.conf.p1p2.arp_filter = 0
net.ipv4.conf.p1p1.arp_filter = 0
net.ipv4.conf.lo.arp_announce = 2
net.ipv4.conf.all.arp_announce = 2
net.ipv4.conf.default.arp_announce = 2
net.ipv4.conf.p1p1.arp_announce = 2
net.ipv4.conf.p1p2.arp_announce = 2

Select all Open in new window

PING 37.123.98.142 (37.123.98.142) from 37.123.98.142 p1p1: 56(84) bytes of data.

^C
--- 37.123.98.142 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2055ms

[root@spd network-scripts]# ping -I p1p1 37.123.98.138
PING 37.123.98.138 (37.123.98.138) from 37.123.98.142 p1p1: 56(84) bytes of data.

^C
--- 37.123.98.138 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3064ms

[root@spd network-scripts]# ping -I p1p2 37.123.98.138
PING 37.123.98.138 (37.123.98.138) from 37.123.98.138 p1p2: 56(84) bytes of data.

^C
--- 37.123.98.138 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1038ms

[root@spd network-scripts]# ping -I p1p2 37.123.98.142
PING 37.123.98.142 (37.123.98.142) from 37.123.98.138 p1p2: 56(84) bytes of data.

^C
--- 37.123.98.142 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2060ms

Select all Open in new window

[root@spd network-scripts]# ping 37.123.98.142
PING 37.123.98.142 (37.123.98.142) 56(84) bytes of data.
64 bytes from 37.123.98.142: icmp_seq=1 ttl=64 time=0.019 ms
64 bytes from 37.123.98.142: icmp_seq=2 ttl=64 time=0.022 ms
64 bytes from 37.123.98.142: icmp_seq=3 ttl=64 time=0.017 ms
64 bytes from 37.123.98.142: icmp_seq=4 ttl=64 time=0.015 ms

Select all Open in new window

Select all Open in new window

…

Hello ,

We have suprised on one test. We realize that when an ip address directly sends 1million pps to a server. That server normally working with irq perfectly , it hits to only one core of the server.
Why that happens and how this issue should be over comed.

I am getting the following errors when cross compiling aircrack-ng to a MIPS based router:

ld: cannot find -lssl
ld: cannot find -crypto
ld: cannot find -lssp-nonshared
ld: cannot find -lssp

The compilers (c and c++) are producing what I believe are the expected object files:

aircrack-ng.o:      ELF 32-bit MSB relocatable, MIPS, MIPS-I version 1 (SYSV), not stripped
aircrack-ptw-lib.o: ELF 32-bit MSB relocatable, MIPS, MIPS-I version 1 (SYSV), not stripped
common.o:           ELF 32-bit MSB relocatable, MIPS, MIPS-I version 1 (SYSV), not stripped
cpuid.o:            ELF 32-bit MSB relocatable, MIPS, MIPS-I version 1 (SYSV), not stripped
crypto.o:           ELF 32-bit MSB relocatable, MIPS, MIPS-I version 1 (SYSV), not stripped
linecount.o:        ELF 32-bit MSB relocatable, MIPS, MIPS-I version 1 (SYSV), not stripped
uniqueiv.o:         ELF 32-bit MSB relocatable, MIPS, MIPS-I version 1 (SYSV), not stripped

I am new to Linux and cross compiling.

What do I have to find and where do I  need to put them in order to get further along?

Thank you.

Guys,
I saw some script that in our applications server has the gawk.exe with parameter as  below, do anyone here familiar with gawk and mind to explain what is this parameter does ?

gawk.exe "!x[$0]++"

I  have a few question for selection of drop policy applied place.

1. Which one first apply the drop rule ?
2. iptables and nftables are user space appliances but i do not know deeper , are they work in kernel space and pipe the requests from user space or are they work completely after kernel space ?
3. Is there any possibility to drop a packet before any kernel space module ,i tryed with netfilter and drop an ip xx.xx.xx.xx and i realize that tcpdump still reading the traffic but iptables not. So the traffic is passing to kernel space still on netfilter.

I have a Linux bind server hosting a

the rzone  file in /var/named/data/51-168-192.zone

the SOA line says this is    "IN SOA  netsvc.int.alconi.com.   root.netsvc.int.alconi.com. 203 3h 1h 1w 5m

I want to create a windows DNS in the another namespace that would be       "win2016.int.alconi.com" or maybe "win.alconi.com"  with its own DNS servers, can I do this ?

should I create another subnet for the win.alconi.com?

if so how ,

I am very ignorant on this , and really really could use some help

Error: Package: R-core-devel-3.4.0-2.el6.x86_64
           Requires: libicu-devel
**********************************************************************
yum can be configured to try to resolve such errors by temporarily enabling
disabled repos and searching for missing dependencies.
To enable this functionality please set 'notify_only=0' in /etc/yum/pluginconf.d/search-disabled-repos.conf
**********************************************************************

--> Running transaction check
---> Package R-core-devel.x86_64 0:3.4.0-2.el6 will be an update
--> Processing Dependency: libicu-devel for package: R-core-devel-3.4.0-2.el6.x86_64
---> Package kernel.x86_64 0:2.6.32-642.11.1.el6 will be erased
--> Finished Dependency Resolution
Error: Package: R-core-devel-3.4.0-2.el6.x86_64
           Requires: libicu-devel
 You could try using --skip-broken to work around the problem
** Found 2 pre-existing rpmdb problem(s), 'yum check' output follows:
tomcat6-admin-webapps-6.0.24-98.el6_8.noarch has missing requires of tomcat6 = ('0', '6.0.24', '98.el6_8')
tomcat6-webapps-6.0.24-98.el6_8.noarch has missing requires of tomcat6 = ('0', '6.0.24', '98.el6_8')