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aksharb

aksharb

  • Linux.com Member
  • Posts: 6
  • Member Since: 19 Nov 10
  • Last Logged In: 4 days ago

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  • aksharb
    local application core dump files on cent os 6.2_x64
    Hi, We have cent os 6.2 x86_64 server in which, we have observed that applications will run on the machine and will generate its core dump file in /local on the machine. We with to change this path of generating the application core dumps from /local to somewhere else. Which service is responsible for this default configuration and how to change this path. thank you
    Link to this post 4 days ago

    Hi,

    We have cent os 6.2 x86_64 server in which, we have observed that applications will run on the machine and will generate its core dump file in /local on the machine. We with to change this path of generating the application core dumps from /local to somewhere else. Which service is responsible for this default configuration and how to change this path.
    thank you

  • aksharb
    cent OS 6.3 : eth0 shows ip but does not ping to other machines
    hi, i have cent os 6.3 (2.6.32-279.el6.x86_64 #1 SMP), 64 bit AMD machine. It has 2 ethernet interfaces and 1 dual port ib card. initially eth0 had 192.168.16.61 as ip. we then changed it to 172.28.2.61 and ifconfig show the new ip address. Now if we try to ping any other machine of 172.28.2.0 network, it does not ping. tcpdump -i eth0 shows that it still tries to contact 16.0 network machines. ##################### tcpdump -i eth0 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes 18:35:22.595192 IP 192.168.16.37.mdns > 224.0.0.251.mdns: 0 SRV (QM)? CanonMF4500w._http._tcp.local. (47) 18:35:22.906188 IP 192.168.16.6.mdns > 224.0.0.251.mdns: 0*- [0q] 1/0/1 (Cache flush) SRV Canonb0480b.local.:80 0 0 (89) ##################### There is no iptables/selinux. eth1 is 172.29.2.671 which is working absolutely fine. #ifconfig eth0 ifconfig eth0 eth0 Link encap:Ethernet HWaddr 00:25:90:58:FB:F6 inet addr:172.28.2.61 Bcast:172.28.3.255 Mask:255.255.252.0 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:109510 errors:0 dropped:0 overruns:0 frame:0 TX packets:774 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:14912536 (14.2 MiB) TX bytes:47923 (46.7 KiB) Memory:dfd60000-dfd80000 ping 172.28.2.200 PING 172.28.2.200 (172.28.2.200) 56(84) bytes of data. From 172.28.2.61 icmp_seq=2 Destination Host Unreachable From 172.28.2.61 icmp_seq=3 Destination Host Unreachable what can be the issue?
    Link to this post 10 Nov 12

    hi,
    i have cent os 6.3 (2.6.32-279.el6.x86_64 #1 SMP), 64 bit AMD machine. It has 2 ethernet interfaces and 1 dual port ib card. initially eth0 had 192.168.16.61 as ip. we then changed it to 172.28.2.61 and ifconfig show the new ip address. Now if we try to ping any other machine of 172.28.2.0 network, it does not ping. tcpdump -i eth0 shows that it still tries to contact 16.0 network machines.
    #####################
    tcpdump -i eth0
    tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
    listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
    18:35:22.595192 IP 192.168.16.37.mdns > 224.0.0.251.mdns: 0 SRV (QM)? CanonMF4500w._http._tcp.local. (47)
    18:35:22.906188 IP 192.168.16.6.mdns > 224.0.0.251.mdns: 0*- [0q] 1/0/1 (Cache flush) SRV Canonb0480b.local.:80 0 0 (89)

    #####################
    There is no iptables/selinux. eth1 is 172.29.2.671 which is working absolutely fine.

    #ifconfig eth0

    ifconfig eth0
    eth0 Link encap:Ethernet HWaddr 00:25:90:58:FB:F6
    inet addr:172.28.2.61 Bcast:172.28.3.255 Mask:255.255.252.0
    UP BROADCAST MULTICAST MTU:1500 Metric:1
    RX packets:109510 errors:0 dropped:0 overruns:0 frame:0
    TX packets:774 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:14912536 (14.2 MiB) TX bytes:47923 (46.7 KiB)
    Memory:dfd60000-dfd80000

    ping 172.28.2.200
    PING 172.28.2.200 (172.28.2.200) 56(84) bytes of data.
    From 172.28.2.61 icmp_seq=2 Destination Host Unreachable
    From 172.28.2.61 icmp_seq=3 Destination Host Unreachable

    what can be the issue?

  • aksharb
    All the patches of mpich-1.2.7p1 for centos 5.1 x86_64
    Hi, can i get all the patches of mpich-1.2.7p1 for centos 5.1 x86_64 -akshar JRF bpti, delhi
    Link to this post 16 Feb 12

    Hi,
    can i get all the patches of mpich-1.2.7p1 for centos 5.1 x86_64

    -akshar
    JRF
    bpti, delhi

  • aksharb
    max/ideal value of items in limits.conf in rhel5?
    i want to set limits in /etc/security/limits.conf.My os is rhel 5.2. It was giving continuous messages in in /var/log/secure like : Jan 1 09:46:43 yn55 sshd[31742]: pam_limits(sshd:session): wrong limit value 'unlimited' for limit type 'soft' Jan 1 09:46:43 yn55 sshd[31742]: pam_limits(sshd:session): wrong limit value 'unlimited' for limit type 'hard' continuously. I have changed values of priority and nice to "0" from unlimited and messages are not comming. But i want to know what is the ideal/maximum value of these two items? Is 0 value set is correct? To what should i set it to? I want it to be maximum. * soft core unlimited * hard core unlimited * soft data unlimited * hard data unlimited * soft fsize unlimited * hard fsize unlimited * soft memlock -1 * hard memlock -1 * soft nofile 20000 * hard nofile 20000 * soft rss unlimited * hard rss unlimited * soft stack unlimited * hard stack unlimited * soft cpu unlimited * hard cpu unlimited * soft nproc unlimited * hard nproc unlimited * soft as unlimited * hard as unlimited * soft maxlogins unlimited * hard maxlogins unlimited * soft maxsyslogins unlimited * hard maxsyslogins unlimited * soft priority 0 * hard priority 0 * soft locks unlimited * hard locks unlimited * soft sigpending unlimited * hard sigpending unlimited * soft msgqueue unlimited * hard msgqueue unlimited * soft nice 0 * hard nice 0 * soft rtprio unlimited * hard rtprio unlimited
    Link to this post 01 Jan 11

    i want to set limits in /etc/security/limits.conf.My os is rhel 5.2.
    It was giving continuous messages in in /var/log/secure like :
    Jan 1 09:46:43 yn55 sshd[31742]: pam_limits(sshd:session): wrong limit value 'unlimited' for limit type 'soft'
    Jan 1 09:46:43 yn55 sshd[31742]: pam_limits(sshd:session): wrong limit value 'unlimited' for limit type 'hard'
    continuously.
    I have changed values of priority and nice to "0" from unlimited and messages are not comming. But i want to know what is the ideal/maximum value of these two items? Is 0 value set is correct? To what should i set it to? I want it to be maximum.

    * soft core unlimited
    * hard core unlimited
    * soft data unlimited
    * hard data unlimited
    * soft fsize unlimited
    * hard fsize unlimited
    * soft memlock -1
    * hard memlock -1
    * soft nofile 20000
    * hard nofile 20000
    * soft rss unlimited
    * hard rss unlimited
    * soft stack unlimited
    * hard stack unlimited
    * soft cpu unlimited
    * hard cpu unlimited
    * soft nproc unlimited
    * hard nproc unlimited
    * soft as unlimited
    * hard as unlimited
    * soft maxlogins unlimited
    * hard maxlogins unlimited
    * soft maxsyslogins unlimited
    * hard maxsyslogins unlimited
    * soft priority 0
    * hard priority 0
    * soft locks unlimited
    * hard locks unlimited
    * soft sigpending unlimited
    * hard sigpending unlimited
    * soft msgqueue unlimited
    * hard msgqueue unlimited
    * soft nice 0
    * hard nice 0
    * soft rtprio unlimited
    * hard rtprio unlimited

  • aksharb
    copy(backup) data of home dir in rhel5.2
    hi, i want to backup 600 GB of data in other partition in same server. what should i use? tar/copy?i want to preserver same permissions/ soft links etc.
    Link to this post 20 Nov 10

    hi,
    i want to backup 600 GB of data in other partition in same server. what should i use? tar/copy?i want to preserver same permissions/ soft links etc.

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