sharon zakhour - Page 2

12.04lts: no network internet

- by dgermann

Friends-- Cannot connect reliably to ethernet nor at all to Internet: Symptoms: About 2 weeks ago did an upgrade. Have not been able to connect to ethernet nor Internet. Today, for example, boot up this System76 laptop and there was no network connection. Did sudo mount -a and got some internal network connectivity: doug@ubuntu:/sam$ ping earth PING earth (192.168.0.201) 56(84) bytes of data. 64 bytes from earth (192.168.0.201): icmp_req=1 ttl=64 time=0.160 ms 64 bytes from earth (192.168.0.201): icmp_req=2 ttl=64 time=0.177 ms 64 bytes from earth (192.168.0.201): icmp_req=3 ttl=64 time=0.159 ms ^C --- earth ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1998ms rtt min/avg/max/mdev = 0.159/0.165/0.177/0.013 ms doug@ubuntu:/sam$ ping doug2 PING doug (192.168.0.4) 56(84) bytes of data. ^C --- doug ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 1999ms doug@ubuntu:/sam$ ping sharon PING sharon (192.168.0.111) 56(84) bytes of data. 64 bytes from sharon (192.168.0.111): icmp_req=1 ttl=128 time=0.276 ms ^C --- sharon ping statistics --- 6 packets transmitted, 1 received, 83% packet loss, time 5031ms rtt min/avg/max/mdev = 0.276/0.276/0.276/0.000 ms doug@ubuntu:/sam$ ping 192.168.0.1 PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data. ^C --- 192.168.0.1 ping statistics --- 6 packets transmitted, 0 received, 100% packet loss, time 4999ms doug@ubuntu:/sam$ ping earth PING earth (192.168.0.201) 56(84) bytes of data. ^C --- earth ping statistics --- 5 packets transmitted, 0 received, 100% packet loss, time 4032ms doug@ubuntu:/sam$ ping yahoo.com ping: unknown host yahoo.com doug@ubuntu:/sam$ ping ubuntu.com ping: unknown host ubuntu.com doug@ubuntu:/sam$ ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. ^C --- 8.8.8.8 ping statistics --- 14 packets transmitted, 0 received, 100% packet loss, time 13103ms Note that earth is the cifs server, and one time pinging it worked, later failed. Clues: doug@ubuntu:/sam$ grep -i eth /var/log/syslog |tail Aug 23 15:32:46 ubuntu kernel: [ 5328.070401] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 Aug 23 15:32:48 ubuntu kernel: [ 5330.651139] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=19090 PROTO=2 Aug 23 15:34:51 ubuntu kernel: [ 5453.072279] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 Aug 23 15:34:55 ubuntu kernel: [ 5457.085433] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.10 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=16137 PROTO=2 Aug 23 15:36:56 ubuntu kernel: [ 5578.074492] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 Aug 23 15:37:00 ubuntu kernel: [ 5582.359006] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.10 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=16150 PROTO=2 Aug 23 15:39:01 ubuntu kernel: [ 5703.074410] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 Aug 23 15:39:03 ubuntu kernel: [ 5705.070122] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.10 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=16163 PROTO=2 Aug 23 15:41:06 ubuntu kernel: [ 5828.074387] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 Aug 23 15:41:13 ubuntu kernel: [ 5835.319941] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=23298 PROTO=2 doug@ubuntu:/sam$ ifconfig -a eth0 Link encap:Ethernet HWaddr [BLANKED] inet addr:192.168.0.7 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::21b:fcff:fe29:9dfc/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3961 errors:0 dropped:0 overruns:0 frame:0 TX packets:2007 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:991204 (991.2 KB) TX bytes:252908 (252.9 KB) Interrupt:16 Base address:0xec00 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:2190 errors:0 dropped:0 overruns:0 frame:0 TX packets:2190 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:168052 (168.0 KB) TX bytes:168052 (168.0 KB) wlan0 Link encap:Ethernet HWaddr 00:19:d2:72:5a:0c UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) doug@ubuntu:/sam$ iwconfig lo no wireless extensions. wlan0 IEEE 802.11abg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off eth0 no wireless extensions. doug@ubuntu:/sam$ lsmod Module Size Used by des_generic 21191 0 md4 12523 0 nls_iso8859_1 12617 1 nls_cp437 12751 1 vfat 17308 1 fat 55605 1 vfat usb_storage 39646 1 dm_crypt 22528 1 joydev 17393 0 snd_hda_codec_analog 75395 1 snd_hda_intel 32719 2 pcmcia 39826 0 snd_hda_codec 109562 2 snd_hda_codec_analog,snd_hda_intel snd_hwdep 13276 1 snd_hda_codec ip6t_LOG 16846 4 xt_hl 12465 6 ip6t_rt 12473 3 snd_pcm 80916 2 snd_hda_intel,snd_hda_codec nf_conntrack_ipv6 13581 7 nf_defrag_ipv6 13175 1 nf_conntrack_ipv6 ipt_REJECT 12512 1 ipt_LOG 12783 5 xt_limit 12541 12 xt_tcpudp 12531 21 xt_addrtype 12596 4 snd_seq_midi 13132 0 xt_state 12514 14 ip6table_filter 12711 1 ip6_tables 22528 3 ip6t_LOG,ip6t_rt,ip6table_filter nf_conntrack_netbios_ns 12585 0 nf_conntrack_broadcast 12541 1 nf_conntrack_netbios_ns nf_nat_ftp 12595 0 nf_nat 24959 1 nf_nat_ftp nf_conntrack_ipv4 19084 9 nf_nat nf_defrag_ipv4 12649 1 nf_conntrack_ipv4 nf_conntrack_ftp 13183 1 nf_nat_ftp nf_conntrack 73847 8 nf_conntrack_ipv6,xt_state,nf_conntrack_netbios_ns,nf_conntrack_broadcast,nf_nat_ftp,nf_nat,nf_conntrack_ipv4,nf_conntrack_ftp iptable_filter 12706 1 ip_tables 18106 1 iptable_filter snd_rawmidi 25424 1 snd_seq_midi psmouse 86982 0 x_tables 22011 13 ip6t_LOG,xt_hl,ip6t_rt,ipt_REJECT,ipt_LOG,xt_limit,xt_tcpudp,xt_addrtype,xt_state,ip6table_filter,ip6_tables,iptable_filter,ip_tables arc4 12473 2 r592 17808 0 snd_seq_midi_event 14475 1 snd_seq_midi memstick 15857 1 r592 yenta_socket 27465 0 serio_raw 13027 0 pcmcia_rsrc 18367 1 yenta_socket iwl3945 73186 0 pcmcia_core 21511 3 pcmcia,yenta_socket,pcmcia_rsrc iwl_legacy 71334 1 iwl3945 snd_seq 51592 2 snd_seq_midi,snd_seq_midi_event mac80211 436493 2 iwl3945,iwl_legacy snd_timer 28931 2 snd_pcm,snd_seq snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq rfcomm 38139 0 bnep 17830 2 parport_pc 32114 0 bluetooth 158447 10 rfcomm,bnep ppdev 12849 0 cfg80211 178877 3 iwl3945,iwl_legacy,mac80211 asus_laptop 23693 0 sparse_keymap 13658 1 asus_laptop input_polldev 13648 1 asus_laptop nls_utf8 12493 6 cifs 258037 10 snd 62218 13 snd_hda_codec_analog,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device soundcore 14635 1 snd mac_hid 13077 0 snd_page_alloc 14108 2 snd_hda_intel,snd_pcm lp 17455 0 parport 40930 3 parport_pc,ppdev,lp i915 428418 3 firewire_ohci 40172 0 sdhci_pci 18324 0 sdhci 28241 1 sdhci_pci firewire_core 56940 1 firewire_ohci crc_itu_t 12627 1 firewire_core r8169 56396 0 drm_kms_helper 45466 1 i915 drm 197641 4 i915,drm_kms_helper i2c_algo_bit 13199 1 i915 video 19115 1 i915 doug@ubuntu:/sam$ dmesg |grep eth [ 0.116936] i2c-core: driver [aat2870] using legacy suspend method [ 0.116939] i2c-core: driver [aat2870] using legacy resume method [ 1.453811] r8169 0000:03:07.0: eth0: RTL8169sb/8110sb at 0xf840ec00, [BLANKED], XID 10000000 IRQ 16 [ 1.453815] r8169 0000:03:07.0: eth0: jumbo features [frames: 7152 bytes, tx checksumming: ok] [ 25.681231] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 154.037318] r8169 0000:03:07.0: eth0: link down [ 154.037329] r8169 0000:03:07.0: eth0: link down [ 154.037596] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 155.583162] r8169 0000:03:07.0: eth0: link up [ 155.583366] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 156.637048] r8169 0000:03:07.0: eth0: link down [ 156.637066] r8169 0000:03:07.0: eth0: link down [ 156.637339] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 156.773699] r8169 0000:03:07.0: eth0: link down [ 156.773983] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 158.456181] r8169 0000:03:07.0: eth0: link up [ 158.456378] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 159.364468] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 162.384496] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=38877 PROTO=2 [ 166.272457] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 166.422333] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=40695 PROTO=2 [ 168.736049] eth0: no IPv6 routers present [ 183.572472] r8169 0000:03:07.0: eth0: link down [ 183.572490] r8169 0000:03:07.0: eth0: link down [ 183.572934] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 185.204801] r8169 0000:03:07.0: eth0: link up [ 185.205005] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 3620.680451] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 3621.068431] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 3624.912973] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=9118 PROTO=2 [ 3631.088069] eth0: no IPv6 routers present [ 3703.062980] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 3703.465330] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=9210 PROTO=2 [ 3828.062951] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 3833.617772] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=9749 PROTO=2 [ 3953.062920] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 3955.675129] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.10 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=15983 PROTO=2 [ 4078.062922] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 4078.386319] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.10 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=15997 PROTO=2 [ 4203.062899] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 4203.559241] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.10 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=16011 PROTO=2 [ 4328.062833] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 4328.930922] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.10 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=16027 PROTO=2 [ 4453.062811] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 4453.950224] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.10 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=16039 PROTO=2 [ 4578.062742] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 4580.626432] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=13738 PROTO=2 [ 4703.062704] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 4706.310170] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=15942 PROTO=2 [ 4828.062707] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 4832.174324] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=16505 PROTO=2 [ 4953.062628] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 4961.469282] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.10 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=16090 PROTO=2 [ 5078.062552] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 5080.776462] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=17239 PROTO=2 [ 5203.070394] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 5205.358134] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=17665 PROTO=2 [ 5328.070401] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 5330.651139] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=19090 PROTO=2 [ 5453.072279] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 5457.085433] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.10 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=16137 PROTO=2 [ 5578.074492] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 5582.359006] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.10 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=16150 PROTO=2 [ 5703.074410] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 5705.070122] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED]--- SRC=192.168.0.10 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=16163 PROTO=2 [ 5828.074387] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED][BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 5835.319941] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED][BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=23298 PROTO=2 [ 5953.074429] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED][BLANKED]--- SRC=192.168.0.1 DST=224.0.0.1 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 [ 5961.925481] [UFW BLOCK] IN=eth0 OUT= MAC=[BLANKED][BLANKED]--- SRC=192.168.0.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=24261 PROTO=2 doug@ubuntu:/sam$ lspci -nnk |grep -iA2 eth 03:07.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8169 PCI Gigabit Ethernet Controller [10ec:8169] (rev 10) Subsystem: ASUSTeK Computer Inc. Device [1043:11e5] Kernel driver in use: r8169 doug@ubuntu:/sam$ route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth0 192.168.0.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0 doug@ubuntu:/sam$ nm-tool NetworkManager Tool State: connected (global) - Device: eth0 [Ifupdown (eth0)] ---------------------------------------------- Type: Wired Driver: r8169 State: connected Default: yes HW Address: [BLANKED] Capabilities: Carrier Detect: yes Speed: 100 Mb/s Wired Properties Carrier: on IPv4 Settings: Address: 192.168.0.7 Prefix: 24 (255.255.255.0) Gateway: 192.168.0.1 DNS: 192.168.0.1 - Device: wlan0 ---------------------------------------------------------------- Type: 802.11 WiFi Driver: iwl3945 State: disconnected Default: no HW Address: 00:19:D2:72:5A:0C Capabilities: Wireless Properties WEP Encryption: yes WPA Encryption: yes WPA2 Encryption: yes Wireless Access Points ATT592: Infra, 30:60:23:76:FE:60, Freq 2437 MHz, Rate 54 Mb/s, Strength 24 WPA WPA2 doug@ubuntu:/sam$ nslookup ubuntu.com ;; connection timed out; no servers could be reached doug@ubuntu:/sam$ dig ubuntuforums.org ; <<>> DiG 9.8.1-P1 <<>> ubuntuforums.org ;; global options: +cmd ;; connection timed out; no servers could be reached doug@ubuntu:/sam$ sudo ifconfig eth0 up doug@ubuntu:/sam$ dhcpcd eth0 The program 'dhcpcd' can be found in the following packages: * dhcpcd * dhcpcd5 Try: sudo apt-get install <selected package> doug@ubuntu:/sam$ lspci -k 00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel driver in use: agpgart-intel 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) Subsystem: ASUSTeK Computer Inc. Device 1252 Kernel driver in use: i915 Kernel modules: intelfb, i915 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03) Subsystem: ASUSTeK Computer Inc. Device 1252 00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 02) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 00:1c.0 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 1 (rev 02) Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.1 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 2 (rev 02) Kernel driver in use: pcieport Kernel modules: shpchp 00:1d.0 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #1 (rev 02) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel driver in use: uhci_hcd 00:1d.1 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #2 (rev 02) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel driver in use: uhci_hcd 00:1d.2 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #3 (rev 02) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel driver in use: uhci_hcd 00:1d.3 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #4 (rev 02) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel driver in use: uhci_hcd 00:1d.7 USB controller: Intel Corporation NM10/ICH7 Family USB2 EHCI Controller (rev 02) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel driver in use: ehci_hcd 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2) 00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel modules: leds-ss4200, iTCO_wdt, intel-rng 00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel driver in use: ata_piix 00:1f.3 SMBus: Intel Corporation NM10/ICH7 Family SMBus Controller (rev 02) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel modules: i2c-i801 02:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02) Subsystem: Intel Corporation PRO/Wireless 3945ABG Network Connection Kernel driver in use: iwl3945 Kernel modules: iwl3945 03:01.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev b3) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel driver in use: yenta_cardbus Kernel modules: yenta_socket 03:01.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C552 IEEE 1394 Controller (rev 08) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel driver in use: firewire_ohci Kernel modules: firewire-ohci 03:01.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 17) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel driver in use: sdhci-pci Kernel modules: sdhci-pci 03:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 08) Subsystem: ASUSTeK Computer Inc. Device 1297 Kernel driver in use: r592 Kernel modules: r592 03:07.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8169 PCI Gigabit Ethernet Controller (rev 10) Subsystem: ASUSTeK Computer Inc. Device 11e5 Kernel driver in use: r8169 Kernel modules: r8169 doug@ubuntu:/sam$ Things I have tried: sudo start network-manager: no help gksudo gedit /etc/network/interfaces changed line to iface eth0 inet dhcp: no help gksudo gedit /etc/NetworkManager/NetworkManager.conf, I changed managed=false to managed=true. Then sudo service network-manager restart: no help: network is unreachable sudo pkill -9 NetworkManager: no help gksudo gedit /etc/resolve.conf added line nameseriver 8.8.8.8: no help I know very little about networking; to date this has simply worked. Thanks for your help! :- Doug.

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Podcasting Questions and Answers

Podcasting is an up-and-coming and increasingly popular medium for communication. The following are common questions about podcasting, perfect for those just getting started in podcasting as a commun... [Author: Sharon Housley - Computers and Internet - April 21, 2010]

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15 Important Web Design Tips

15 Important Web Design Tips Here are 15 important website design tips that you might not be aware of or have overlooked. Consider taking advantage of them if you haven';t already done so... 1. Cust... [Author: Sharon Housley - Web Design and Development - April 21, 2010]

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Andriod 2.4 – IceCream – Comming…

- by Boonei

Take a deep breath before you read further, I am sure some of us are waiting for Gingerbread update in our mobile phones and most of us still are waiting even to get Froyo. Before we blink our eyes, you will be seeing the latest version of Android OS out soon, Android 2.4 aka Icecream. Its expected to be out in this June/July, so for sure we would get a spoon full on Google I/O comming this May. Stay Tuned……… Guess its better now a days to buy a “Pure-Android” phone. Else we would be waiting for ever to get the latest version on our phones. [Image Credit : D Sharon Pruitt, Available under Creative Commons] This article titled,Andriod 2.4 – IceCream – Comming…, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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Oracle is #1 in the RDBMS Sector for 2011

- by jgelhaus

Gartner 2011 Worldwide RDBMS Market Share Reports 48.8% revenue share for Oracle (*) Gartner has published their market share numbers for 2011 based on total software revenues. According to Gartner, Oracle: is #1 in worldwide RDBMS software revenue share holds more revenue share than its seven closest competitors combined grew at 18.0%, exceeding both the industry average (16.3%) and the growth rates of its closest competitors. (*) Source: Market Share: All Software Markets, Worldwide 2011 by Colleen Graham, Joanne Correia, David Coyle, Fabrizio Biscotti, Matthew Cheung, Ruggero Contu, Yanna Dharmasthira, Tom Eid, Chad Eschinger, Bianca Granetto, Hai Hong Swinehart, Sharon Mertz, Chris Pang, Asheesh Raina, Dan Sommer, Bhavish Sood, Marianne D'Aquila, Laurie Wurster and Jie Zhang. - March 29, 2012

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Extract / Parse Tags from Mixed Content String

- by Andreas

Hello, i want to parse Tags from a mixed Content String. The string goes like this: "<PERSON>yasir arafat</PERSON> , the president of the <LOCATION>palestinian authority</LOCATION> , on the defensive , mr . sharon believes , a government official" I only want to use jaxp. Got anybody an idea for this. May an easy way with Expressions. But i need the Element names as well though. Best Regards Andreas

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How to get a list of names + a count of occurrences relating to the name from another table

- by Jacob Degeling

Hi, Hope my subject line was descriptive enough. Basically, I have a table called Students, and one called Absences. The Students table contains student information (Name, DOB, StudentID etc.), the Absences table contains any absences (Date, Reason, related by StudentID). I want to get a full list of the students, plus a count of their absences. Sample results would be: StudentName Absences ------------- ----------- Johnny 3 Mark 2 James 1 Anthony 0 Sharon 0 Can someone suggest a way I should tackle this problem? I would prefer to have a single SQL statement, possibly incorporating some views etc. Thanks, Jacob.

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Postfix log.... spam attempt?

- by luri

I have some weird entries in my mail.log. What I'd like to ask is if postfix is avoiding correctly (according with the main.cf attached below) what seems to be relay attempts, presumably for spamming, or if I can enhance it's security somehow. Feb 2 11:53:25 MYSERVER postfix/smtpd[9094]: connect from catv-80-99-46-143.catv.broadband.hu[80.99.46.143] Feb 2 11:53:25 MYSERVER postfix/smtpd[9094]: warning: non-SMTP command from catv-80-99-46-143.catv.broadband.hu[80.99.46.143]: GET / HTTP/1.1 Feb 2 11:53:25 MYSERVER postfix/smtpd[9094]: disconnect from catv-80-99-46-143.catv.broadband.hu[80.99.46.143] Feb 2 11:56:45 MYSERVER postfix/anvil[9097]: statistics: max connection rate 1/60s for (smtp:80.99.46.143) at Feb 2 11:53:25 Feb 2 11:56:45 MYSERVER postfix/anvil[9097]: statistics: max connection count 1 for (smtp:80.99.46.143) at Feb 2 11:53:25 Feb 2 11:56:45 MYSERVER postfix/anvil[9097]: statistics: max cache size 1 at Feb 2 11:53:25 Feb 2 12:09:19 MYSERVER postfix/smtpd[9302]: connect from vs148181.vserver.de[62.75.148.181] Feb 2 12:09:19 MYSERVER postfix/smtpd[9302]: warning: non-SMTP command from vs148181.vserver.de[62.75.148.181]: GET / HTTP/1.1 Feb 2 12:09:19 MYSERVER postfix/smtpd[9302]: disconnect from vs148181.vserver.de[62.75.148.181] Feb 2 12:12:39 MYSERVER postfix/anvil[9304]: statistics: max connection rate 1/60s for (smtp:62.75.148.181) at Feb 2 12:09:19 Feb 2 12:12:39 MYSERVER postfix/anvil[9304]: statistics: max connection count 1 for (smtp:62.75.148.181) at Feb 2 12:09:19 Feb 2 12:12:39 MYSERVER postfix/anvil[9304]: statistics: max cache size 1 at Feb 2 12:09:19 Feb 2 14:17:02 MYSERVER postfix/smtpd[10847]: connect from unknown[202.46.129.123] Feb 2 14:17:02 MYSERVER postfix/smtpd[10847]: warning: non-SMTP command from unknown[202.46.129.123]: GET / HTTP/1.1 Feb 2 14:17:02 MYSERVER postfix/smtpd[10847]: disconnect from unknown[202.46.129.123] Feb 2 14:20:22 MYSERVER postfix/anvil[10853]: statistics: max connection rate 1/60s for (smtp:202.46.129.123) at Feb 2 14:17:02 Feb 2 14:20:22 MYSERVER postfix/anvil[10853]: statistics: max connection count 1 for (smtp:202.46.129.123) at Feb 2 14:17:02 Feb 2 14:20:22 MYSERVER postfix/anvil[10853]: statistics: max cache size 1 at Feb 2 14:17:02 Feb 2 20:57:33 MYSERVER postfix/smtpd[18452]: warning: 95.110.224.230: hostname host230-224-110-95.serverdedicati.aruba.it verification failed: Name or service not known Feb 2 20:57:33 MYSERVER postfix/smtpd[18452]: connect from unknown[95.110.224.230] Feb 2 20:57:33 MYSERVER postfix/smtpd[18452]: lost connection after CONNECT from unknown[95.110.224.230] Feb 2 20:57:33 MYSERVER postfix/smtpd[18452]: disconnect from unknown[95.110.224.230] Feb 2 21:00:53 MYSERVER postfix/anvil[18455]: statistics: max connection rate 1/60s for (smtp:95.110.224.230) at Feb 2 20:57:33 Feb 2 21:00:53 MYSERVER postfix/anvil[18455]: statistics: max connection count 1 for (smtp:95.110.224.230) at Feb 2 20:57:33 Feb 2 21:00:53 MYSERVER postfix/anvil[18455]: statistics: max cache size 1 at Feb 2 20:57:33 Feb 2 21:13:44 MYSERVER pop3d: Connection, ip=[::ffff:219.94.190.222] Feb 2 21:13:44 MYSERVER pop3d: LOGIN FAILED, user=admin, ip=[::ffff:219.94.190.222] Feb 2 21:13:50 MYSERVER pop3d: LOGIN FAILED, user=test, ip=[::ffff:219.94.190.222] Feb 2 21:13:56 MYSERVER pop3d: LOGIN FAILED, user=danny, ip=[::ffff:219.94.190.222] Feb 2 21:14:01 MYSERVER pop3d: LOGIN FAILED, user=sharon, ip=[::ffff:219.94.190.222] Feb 2 21:14:07 MYSERVER pop3d: LOGIN FAILED, user=aron, ip=[::ffff:219.94.190.222] Feb 2 21:14:12 MYSERVER pop3d: LOGIN FAILED, user=alex, ip=[::ffff:219.94.190.222] Feb 2 21:14:18 MYSERVER pop3d: LOGIN FAILED, user=brett, ip=[::ffff:219.94.190.222] Feb 2 21:14:24 MYSERVER pop3d: LOGIN FAILED, user=mike, ip=[::ffff:219.94.190.222] Feb 2 21:14:29 MYSERVER pop3d: LOGIN FAILED, user=alan, ip=[::ffff:219.94.190.222] Feb 2 21:14:35 MYSERVER pop3d: LOGIN FAILED, user=info, ip=[::ffff:219.94.190.222] Feb 2 21:14:41 MYSERVER pop3d: LOGIN FAILED, user=shop, ip=[::ffff:219.94.190.222] Feb 3 06:49:29 MYSERVER postfix/smtpd[25834]: warning: 71.6.142.196: hostname db4142196.aspadmin.net verification failed: Name or service not known Feb 3 06:49:29 MYSERVER postfix/smtpd[25834]: connect from unknown[71.6.142.196] Feb 3 06:49:29 MYSERVER postfix/smtpd[25834]: lost connection after CONNECT from unknown[71.6.142.196] Feb 3 06:49:29 MYSERVER postfix/smtpd[25834]: disconnect from unknown[71.6.142.196] Feb 3 06:52:49 MYSERVER postfix/anvil[25837]: statistics: max connection rate 1/60s for (smtp:71.6.142.196) at Feb 3 06:49:29 Feb 3 06:52:49 MYSERVER postfix/anvil[25837]: statistics: max connection count 1 for (smtp:71.6.142.196) at Feb 3 06:49:29 Feb 3 06:52:49 MYSERVER postfix/anvil[25837]: statistics: max cache size 1 at Feb 3 06:49:29 I have Postfix 2.7.1-1 running on Ubuntu 10.10. This is my (modified por privacy) main.cf: smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no append_dot_mydomain = no readme_directory = no smtpd_tls_cert_file = /etc/ssl/certs/smtpd.crt smtpd_tls_key_file = /etc/ssl/private/smtpd.key myhostname = mymailserver.org alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = mymailserver.org, MYSERVER, localhost relayhost = mynetworks = 127.0.0.0/8, 192.168.1.0/24 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all inet_protocols = all home_mailbox = Maildir/ smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination mailbox_command = smtpd_sasl_local_domain = smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous broken_sasl_auth_clients = yes smtpd_tls_security_level = may smtpd_tls_auth_only = no smtp_tls_note_starttls_offer = yes smtpd_tls_CAfile = /etc/ssl/certs/cacert.pem smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout = 3600s tls_random_source = dev:/dev/urandom smtp_tls_security_level = may

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Base de Datos Oracle, su mejor opción para reducir costos de IT

- by Ivan Hassig

Por Victoria Cadavid Sr. Sales Cosultant Oracle Direct Uno de los principales desafíos en la administración de centros de datos es la reducción de costos de operación. A medida que las compañías crecen y los proveedores de tecnología ofrecen soluciones cada vez más robustas, conservar el equilibrio entre desempeño, soporte al negocio y gestión del Costo Total de Propiedad es un desafío cada vez mayor para los Gerentes de Tecnología y para los Administradores de Centros de Datos. Las estrategias más comunes para conseguir reducción en los costos de administración de Centros de Datos y en la gestión de Tecnología de una organización en general, se enfocan en la mejora del desempeño de las aplicaciones, reducción del costo de administración y adquisición de hardware, reducción de los costos de almacenamiento, aumento de la productividad en la administración de las Bases de Datos y mejora en la atención de requerimientos y prestación de servicios de mesa de ayuda, sin embargo, las estrategias de reducción de costos deben contemplar también la reducción de costos asociados a pérdida y robo de información, cumplimiento regulatorio, generación de valor y continuidad del negocio, que comúnmente se conciben como iniciativas aisladas que no siempre se adelantan con el ánimo de apoyar la reducción de costos. Una iniciativa integral de reducción de costos de TI, debe contemplar cada uno de los factores que generan costo y pueden ser optimizados. En este artículo queremos abordar la reducción de costos de tecnología a partir de la adopción del que según los expertos es el motor de Base de Datos # del mercado.Durante años, la base de datos Oracle ha sido reconocida por su velocidad, confiabilidad, seguridad y capacidad para soportar cargas de datos tanto de aplicaciones altamente transaccionales, como de Bodegas de datos e incluso análisis de Big Data , ofreciendo alto desempeño y facilidades de administración, sin embrago, cuando pensamos en proyectos de reducción de costos de IT, además de la capacidad para soportar aplicaciones (incluso aplicaciones altamente transaccionales) con alto desempeño, pensamos en procesos de automatización, optimización de recursos, consolidación, virtualización e incluso alternativas más cómodas de licenciamiento. La Base de Datos Oracle está diseñada para proveer todas las capacidades que un área de tecnología necesita para reducir costos, adaptándose a los diferentes escenarios de negocio y a las capacidades y características de cada organización.Es así, como además del motor de Base de Datos, Oracle ofrece una serie de soluciones para optimizar la administración de la información a través de mecanismos de optimización del uso del storage, continuidad del Negocio, consolidación de infraestructura, seguridad y administración automática, que propenden por un mejor uso de los recursos de tecnología, ofrecen opciones avanzadas de configuración y direccionan la reducción de los tiempos de las tareas operativas más comunes. Una de las opciones de la base de datos que se pueden provechar para reducir costos de hardware es Oracle Real Application Clusters. Esta solución de clustering permite que varios servidores (incluso servidores de bajo costo) trabajen en conjunto para soportar Grids o Nubes Privadas de Bases de Datos, proporcionando los beneficios de la consolidación de infraestructura, los esquemas de alta disponibilidad, rápido desempeño y escalabilidad por demanda, haciendo que el aprovisionamiento, el mantenimiento de las bases de datos y la adición de nuevos nodos se lleve e cabo de una forma más rápida y con menos riesgo, además de apalancar las inversiones en servidores de menor costo. Otra de las soluciones que promueven la reducción de costos de Tecnología es Oracle In-Memory Database Cache que permite almacenar y procesar datos en la memoria de las aplicaciones, permitiendo el máximo aprovechamiento de los recursos de procesamiento de la capa media, lo que cobra mucho valor en escenarios de alta transaccionalidad. De este modo se saca el mayor provecho de los recursos de procesamiento evitando crecimiento innecesario en recursos de hardware. Otra de las formas de evitar inversiones innecesarias en hardware, aprovechando los recursos existentes, incluso en escenarios de alto crecimiento de los volúmenes de información es la compresión de los datos. Oracle Advanced Compression permite comprimir hasta 4 veces los diferentes tipos de datos, mejorando la capacidad de almacenamiento, sin comprometer el desempeño de las aplicaciones. Desde el lado del almacenamiento también se pueden conseguir reducciones importantes de los costos de IT. En este escenario, la tecnología propia de la base de Datos Oracle ofrece capacidades de Administración Automática del Almacenamiento que no solo permiten una distribución óptima de los datos en los discos físicos para garantizar el máximo desempeño, sino que facilitan el aprovisionamiento y la remoción de discos defectuosos y ofrecen balanceo y mirroring, garantizando el uso máximo de cada uno de los dispositivos y la disponibilidad de los datos. Otra de las soluciones que facilitan la administración del almacenamiento es Oracle Partitioning, una opción de la Base de Datos que permite dividir grandes tablas en estructuras más pequeñas. Esta aproximación facilita la administración del ciclo de vida de la información y permite por ejemplo, separar los datos históricos (que generalmente se convierten en información de solo lectura y no tienen un alto volumen de consulta) y enviarlos a un almacenamiento de bajo costos, conservando la data activa en dispositivos de almacenamiento más ágiles. Adicionalmente, Oracle Partitioning facilita la administración de las bases de datos que tienen un gran volumen de registros y mejora el desempeño de la base de datos gracias a la posibilidad de optimizar las consultas haciendo uso únicamente de las particiones relevantes de una tabla o índice en el proceso de búsqueda. Otros factores adicionales, que pueden generar costos innecesarios a los departamentos de Tecnología son: La pérdida, corrupción o robo de datos y la falta de disponibilidad de las aplicaciones para dar soporte al negocio. Para evitar este tipo de situaciones que pueden acarrear multas y pérdida de negocios y de dinero, Oracle ofrece soluciones que permiten proteger y auditar la base de datos, recuperar la información en caso de corrupción o ejecución de acciones que comprometan la integridad de la información y soluciones que permitan garantizar que la información de las aplicaciones tenga una disponibilidad de 7x24. Ya hablamos de los beneficios de Oracle RAC, para facilitar los procesos de Consolidación y mejorar el desempeño de las aplicaciones, sin embrago esta solución, es sumamente útil en escenarios dónde las organizaciones de quieren garantizar una alta disponibilidad de la información, ante fallo de los servidores o en eventos de desconexión planeada para realizar labores de mantenimiento. Además de Oracle RAC, existen soluciones como Oracle Data Guard y Active Data Guard que permiten replicar de forma automática las bases de datos hacia un centro de datos de contingencia, permitiendo una recuperación inmediata ante eventos que deshabiliten por completo un centro de datos. Además de lo anterior, Active Data Guard, permite aprovechar la base de datos de contingencia para realizar labores de consulta, mejorando el desempeño de las aplicaciones. Desde el punto de vista de mejora en la seguridad, Oracle cuenta con soluciones como Advanced security que permite encriptar los datos y los canales a través de los cueles se comparte la información, Total Recall, que permite visualizar los cambios realizados a la base de datos en un momento determinado del tiempo, para evitar pérdida y corrupción de datos, Database Vault que permite restringir el acceso de los usuarios privilegiados a información confidencial, Audit Vault, que permite verificar quién hizo qué y cuándo dentro de las bases de datos de una organización y Oracle Data Masking que permite enmascarar los datos para garantizar la protección de la información sensible y el cumplimiento de las políticas y normas relacionadas con protección de información confidencial, por ejemplo, mientras las aplicaciones pasan del ambiente de desarrollo al ambiente de producción. Como mencionamos en un comienzo, las iniciativas de reducción de costos de tecnología deben apalancarse en estrategias que contemplen los diferentes factores que puedan generar sobre costos, los factores de riesgo que puedan acarrear costos no previsto, el aprovechamiento de los recursos actuales, para evitar inversiones innecesarias y los factores de optimización que permitan el máximo aprovechamiento de las inversiones actuales. Como vimos, todas estas iniciativas pueden ser abordadas haciendo uso de la tecnología de Oracle a nivel de Base de Datos, lo más importante es detectar los puntos críticos a nivel de riesgo, diagnosticar las proporción en que están siendo aprovechados los recursos actuales y definir las prioridades de la organización y del área de IT, para así dar inicio a todas aquellas iniciativas que de forma gradual, van a evitar sobrecostos e inversiones innecesarias, proporcionando un mayor apoyo al negocio y un impacto significativo en la productividad de la organización. Más información http://www.oracle.com/lad/products/database/index.html?ssSourceSiteId=otnes 1Fuente: Market Share: All Software Markets, Worldwide 2011 by Colleen Graham, Joanne Correia, David Coyle, Fabrizio Biscotti, Matthew Cheung, Ruggero Contu, Yanna Dharmasthira, Tom Eid, Chad Eschinger, Bianca Granetto, Hai Hong Swinehart, Sharon Mertz, Chris Pang, Asheesh Raina, Dan Sommer, Bhavish Sood, Marianne D'Aquila, Laurie Wurster and Jie Zhang. - March 29, 2012 2Big Data: Información recopilada desde fuentes no tradicionales como blogs, redes sociales, email, sensores, fotografías, grabaciones en video, etc. que normalmente se encuentran de forma no estructurada y en un gran volumen

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Oracle bleibt auch 2011 Spitzenreiter im Bereich Datenbanken

- by Anne Manke

Mit der Veröffentlichung der aktuellen Ausgabe "Market Share: All Software Markets, Worldwide 2011" bestätigt das weltweit führende Marktanalyseunternehmen Gartner Oracle's Marktführerschaft im Bereich der Relationellen Datenbank Management Systeme (RDBMS). Oracle konnte innerhalb des letzten Jahres seinen Abstand zu seinen Marktbegleitern im Bereich der RDBMS mit einem stabilen Wachstum von 18% sogar ausbauen: der Marktanteil stieg im Jahr 2010 von 48,2% auf 48,8% im Jahr 2011. Damit ist der Abstand zu Oracle's stärkstem Verfolger IBM auf 28,6%. 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mso-tstyle-border-top-themecolor:accent2; mso-tstyle-border-left:1.0pt solid #C0504D; mso-tstyle-border-left-themecolor:accent2; mso-tstyle-border-bottom:1.0pt solid #C0504D; mso-tstyle-border-bottom-themecolor:accent2; mso-tstyle-border-right:1.0pt solid #C0504D; mso-tstyle-border-right-themecolor:accent2; mso-para-margin-top:0cm; mso-para-margin-bottom:0cm; mso-para-margin-bottom:.0001pt; line-height:normal; mso-ansi-font-weight:bold; mso-bidi-font-weight:bold;} table.MsoTableLightListAccent2FirstCol {mso-style-name:"Light List - Accent 2"; mso-table-condition:first-column; mso-style-priority:61; mso-style-unhide:no; mso-ansi-font-weight:bold; mso-bidi-font-weight:bold;} table.MsoTableLightListAccent2LastCol {mso-style-name:"Light List - Accent 2"; mso-table-condition:last-column; mso-style-priority:61; mso-style-unhide:no; mso-ansi-font-weight:bold; mso-bidi-font-weight:bold;} table.MsoTableLightListAccent2OddColumn {mso-style-name:"Light List - Accent 2"; mso-table-condition:odd-column; mso-style-priority:61; mso-style-unhide:no; mso-tstyle-border-top:1.0pt solid #C0504D; mso-tstyle-border-top-themecolor:accent2; mso-tstyle-border-left:1.0pt solid #C0504D; mso-tstyle-border-left-themecolor:accent2; mso-tstyle-border-bottom:1.0pt solid #C0504D; mso-tstyle-border-bottom-themecolor:accent2; mso-tstyle-border-right:1.0pt solid #C0504D; mso-tstyle-border-right-themecolor:accent2;} table.MsoTableLightListAccent2OddRow {mso-style-name:"Light List - Accent 2"; mso-table-condition:odd-row; mso-style-priority:61; mso-style-unhide:no; mso-tstyle-border-top:1.0pt solid #C0504D; mso-tstyle-border-top-themecolor:accent2; mso-tstyle-border-left:1.0pt solid #C0504D; mso-tstyle-border-left-themecolor:accent2; mso-tstyle-border-bottom:1.0pt solid #C0504D; mso-tstyle-border-bottom-themecolor:accent2; mso-tstyle-border-right:1.0pt solid #C0504D; mso-tstyle-border-right-themecolor:accent2;} Revenue 2010 ($USM) Revenue 2011 ($USM) Growth 2010 Growth 2011 Share 2010 Share 2011 Oracle 9,990.5 11,787.0 10.9% 18.0% 48.2% 48.8% IBM 4,300.4 4,870.4 5.4% 13.3% 20.7% 20.2% Microsoft 3,641.2 4,098.9 10.1% 12.6% 17.6% 17.0% SAP/Sybase 744.4 1,101.1 12.8% 47.9% 3.6% 4.6% Teradata 754.7 882.3 16.9% 16.9% 3.6% 3.7% Source: Gartner’s “Market Share: All Software Markets, Worldwide 2011,” March 29, 2012, By Colleen Graham, Joanne Correia, David Coyle, Fabrizio Biscotti, Matthew Cheung, Ruggero Contu, Yanna Dharmasthira, Tom Eid, Chad Eschinger, Bianca Granetto, Hai Hong Swinehart, Sharon Mertz, Chris Pang, Asheesh Raina, Dan Sommer, Bhavish Sood, Marianne D'Aquila, Laurie Wurster and Jie Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; 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