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• Mysql server fails to start

  - by Nicolas Thery

  Googling since two hours, I require your assistance. I'm on a Debian virtual machine and I cloned it. The only change is the new IP adress it has. Mysql doesn't start any more: Starting MySQL database server: mysqld . . . . . . . . . . . . . . failed! There is no process called mysql. All the mysql log files in /var/log are empty. here is my.cnf file : [client] port = 3306 socket = /var/run/mysqld/mysqld.sock [mysqld_safe] socket = /var/run/mysqld/mysqld.sock nice = 0 [mysqld] user = mysql pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock port = 3306 basedir = /usr datadir = /var/lib/mysql tmpdir = /tmp language = /usr/share/mysql/english skip-external-locking bind-address = 127.0.0.1 key_buffer = 16M max_allowed_packet = 16M thread_stack = 192K thread_cache_size = 8 myisam-recover = BACKUP query_cache_limit = 1M query_cache_size = 16M general_log_file = /var/log/mysql/mysql.log log_bin = /var/log/mysql/mysql-bin.log expire_logs_days = 10 max_binlog_size = 100M [mysqldump] quick quote-names max_allowed_packet = 16M [mysql] [isamchk] key_buffer = 16M [mysqld_safe] syslog Here is the result of ifconfig : eth0 Link encap:Ethernet HWaddr 00:0c:29:12:98:9a inet adr:192.168.1.138 Bcast:192.168.1.255 Masque:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:754 errors:0 dropped:0 overruns:0 frame:0 TX packets:106 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 lg file transmission:1000 RX bytes:101177 (98.8 KiB) TX bytes:17719 (17.3 KiB) lo Link encap:Boucle locale inet adr:127.0.0.1 Masque:255.0.0.0 adr inet6: ::1/128 Scope:Hôte UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 lg file transmission:0 RX bytes:560 (560.0 B) TX bytes:560 (560.0 B) As requested, here is the result of : sudo -u mysql mysqld, here is the result : root@debian:/home/nicolas/Bureau# sudo -u mysql mysqld 121004 14:26:57 [Note] Plugin 'FEDERATED' is disabled. mysqld: Can't find file: './mysql/plugin.frm' (errno: 13) 121004 14:26:57 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 121004 14:26:57 InnoDB: Initializing buffer pool, size = 8.0M 121004 14:26:57 InnoDB: Completed initialization of buffer pool 121004 14:26:57 InnoDB: Started; log sequence number 0 70822697 121004 14:26:57 [Note] Recovering after a crash using /var/log/mysql/mysql-bin 121004 14:26:57 [Note] Starting crash recovery... 121004 14:26:57 [Note] Crash recovery finished. 121004 14:26:57 [ERROR] mysqld: Can't find file: './mysql/host.frm' (errno: 13) 121004 14:26:57 [ERROR] Fatal error: Can't open and lock privilege tables: Can't find file: './mysql/host.frm' (errno: 13)

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• Connecting to localhost resolves 127.0.0.1 but connects with external IP [Linux, Debian]

  - by skgsergio

  I'm having a problem with a dedicated server, I don't known if it's the default behavior but this is the problem: If I connect to a service located on the server with localhost the service gets as source IP the external IP. Let me show an example, I use netcat for listening on 127.0.0.1:4444 xxxxxx # nc -vv -l -s 127.0.0.1 -p 4444 listening on [127.0.0.1] 4444 ... Lets check if it's ok: xxxxxx ~ # netstat -atnp | grep 4444 tcp 0 0 127.0.0.1:4444 0.0.0.0:* LISTEN 14038/nc Ok lets connect: xxxxxx ~ # nc -vv 127.0.0.1 4444 localhost [127.0.0.1] 4444 (?) open Return to the tty that have the listening process and I get this: connect to [127.0.0.1] from xxxxxx.net [176.31.xxx.xx] 50354 So that's the problem. I have a server daemon that have to listen on localhost and checks that the ip is 127.0.0.1 when the client connects but for some reason when I connect to localhost it reports the external ip... If I do the same with IPv6 it works as excepted... Detects connection as localhost (::1). Some info that can be useful: "localhost" resolves without problems to 127.0.0.1 xxxxxx ~ # ping -c1 localhost PING localhost (127.0.0.1) 56(84) bytes of data. 64 bytes from localhost (127.0.0.1): icmp_req=1 ttl=64 time=0.086 ms Nothing weird on my hosts file, I think... xxxxxx ~ # grep -v ^# /etc/hosts 127.0.0.1 localhost localhost.localdomain 176.31.xxx.xx xxxxxx.net ns1.xxxxxx.net ::1 ip6-localhost ip6-loopback feo0::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts And ifconfig reports all ok... eth0 Link encap:Ethernet HWaddr e0:69:95:d8:30:a1 inet addr:176.31.xxx.xx Bcast:176.31.108.255 Mask:255.255.255.0 inet6 addr: 2001:41d0:8:xxxx::/64 Scope:Global inet6 addr: 2001:41d0:8:xxxx:x:xx:xx:xx/64 Scope:Global inet6 addr: fe80::e269:95ff:fed8:30a1/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:16916 errors:0 dropped:0 overruns:0 frame:0 TX packets:16914 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:8410679 (8.0 MiB) TX bytes:10539881 (10.0 MiB) Interrupt:28 Base address:0xe000 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:5570 errors:0 dropped:0 overruns:0 frame:0 TX packets:5570 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:744490 (727.0 KiB) TX bytes:744490 (727.0 KiB)

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• OpenVPN not sending traffic to internet?

  - by coleifer

  I've set up openvpn on my pi and am running into a small issue. I can connect to the VPN server and ping it just fine, and I can also connect to other machines on my local network. However I am unable, when connected to the VPN, to reach the outside world (either by name lookup or IP). here are the details: On the server the tun0 interface: tun0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1500 inet 10.8.0.1 netmask 255.255.255.255 destination 10.8.0.2 unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 100 (UNSPEC) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 I can ping it just fine: # ping -c 3 10.8.0.1 PING 10.8.0.1 (10.8.0.1) 56(84) bytes of data. 64 bytes from 10.8.0.1: icmp_seq=1 ttl=64 time=0.159 ms 64 bytes from 10.8.0.1: icmp_seq=2 ttl=64 time=0.155 ms 64 bytes from 10.8.0.1: icmp_seq=3 ttl=64 time=0.156 ms --- 10.8.0.1 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2002ms Routing table # ip route show default via 192.168.1.1 dev eth0 metric 204 10.8.0.0/24 via 10.8.0.2 dev tun0 10.8.0.2 dev tun0 proto kernel scope link src 10.8.0.1 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.6 metric 204 I also have ip traffic forwarding: net.ipv4.ip_forward = 1 I do not have any custom iptables rules (that I'm aware of). On the client, I can connect to the VPN. Here is my tun0: tun0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1500 inet 10.8.0.6 netmask 255.255.255.255 destination 10.8.0.5 unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 100 (UNSPEC) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 21 bytes 1527 (1.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 And on the client I can ping it: sudo ping -c 3 10.8.0.6 PING 10.8.0.6 (10.8.0.6) 56(84) bytes of data. 64 bytes from 10.8.0.6: icmp_seq=1 ttl=64 time=0.035 ms 64 bytes from 10.8.0.6: icmp_seq=2 ttl=64 time=0.026 ms 64 bytes from 10.8.0.6: icmp_seq=3 ttl=64 time=0.032 ms --- 10.8.0.6 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1998ms rtt min/avg/max/mdev = 0.026/0.031/0.035/0.003 ms I can ssh from the client into another server on my LAN (192.168.1.x), however I cannot reach anything outside my LAN. Here's some of the server logs at the bottom of this gist: https://gist.github.com/coleifer/6ef95c3008f130249933/edit I am frankly out of ideas! I don't think it's my client because both my laptop and my phone (which has an openvpn client) exhibit the same behavior. I had OpenVPN installed on this pi before using debian and it worked, so I don't think it's my router but of course anything is possible.

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• How to add IP range to a server?

  - by Efe Cakinberk

  Hello, First of all I must say that I'm ver inexperienced server and network user. But I rented a unmanaged dedicated server. Well I didn't know what unmanaged really means, then I learned it when I needed support. Well I must do everything by myself. I have a problem. I had already 4 IPs on my server when I rented it. But then I needed more Ips and my server assigned me 32 Ips in which I can only use 27 of them. 85.25.230.0 - 85.25.230.31 this is my Ip range and they say the following Ips must not be configured on the server: 85.25.230.0 - network address 85.25.230.1 - gateway address 85.25.230.2 - router redundancy 85.25.230.3 - router redundancy 85.25.230.31 - broadcast address But the problem is ok Ips are assigned to me but they are not setup on my server. How will I setup Ips to work on my server? I did this after my reseach on google: I used this command on command prompt: route add 85.25.230.0 mask 255.255.255.224 85.25.230.1 metric 1 if then it said OK!. and I thought they should be working. (btw, mask is given to me by my ISP and I don't know metric 1 and if means I just saw it on the net and write it here) I setup my domains via using Plesk Kontrol Panel. So i added one domain and setup one of my new Ips 85.25.230.5 to it. But no it is not working. When I visit the domain via browser, there is a Plesk page comes and says this domain is not configured on the server. Then I changed the domains Ip to one of my old Ips which are given to me with the server and which I have been using for my other domains for a long time. Ok in a second, domain started working. I set it back to my new Ip and domain did not work. As I said, I'm not an expert and do not now the logic. But I'm eager to learn. Can you tell me what might couse the problem and did I do wrong while setting up IP RANGE to my server, if so how can I set them up? Thank you, Efe

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• Centos does not open port/s after the rule/s are appended

  - by Charlie Dyason

  So after some battling and struggling with the firewall, i see that I may be doing something or the firewall isnt responding correctly there is has a port filter that is blocking certain ports. by the way, I have combed the internet, posted on forums, done almost everything and now hence the website name "serverfault", is my last resort, I need help What I hoped to achieve is create a pptp server to connect to with windows/linux clients UPDATED @ bottom Okay, here is what I did: I made some changes to my iptables file, giving me endless issues and so I restored the iptables.old file contents of iptables.old: # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT after iptables.old restore(back to stock), nmap scan shows: nmap [server ip] Starting Nmap 6.00 ( nmap.org ) at 2013-11-01 13:54 SAST Nmap scan report for server.address.net ([server ip]) Host is up (0.014s latency). Not shown: 997 filtered ports PORT STATE SERVICE 22/tcp open ssh 113/tcp closed ident 8008/tcp open http Nmap done: 1 IP address (1 host up) scanned in 4.95 seconds if I append rule: (to accept all tcp ports incoming to server on interface eth0) iptables -A INPUT -i eth0 -m tcp -j ACCEPT nmap output: nmap [server ip] Starting Nmap 6.00 ( nmap.org ) at 2013-11-01 13:58 SAST Nmap scan report for server.address.net ([server ip]) Host is up (0.017s latency). Not shown: 858 filtered ports, 139 closed ports PORT STATE SERVICE 22/tcp open ssh 443/tcp open https 8008/tcp open http Nmap done: 1 IP address (1 host up) scanned in 3.77 seconds *notice it allows and opens port 443 but no other ports, and it removes port 113...? removing previous rule and if I append rule: (allow and open port 80 incoming to server on interface eth0) iptables -A INPUT -i eth0 -m tcp -p tcp --dport 80 -j ACCEPT nmap output: nmap [server ip] Starting Nmap 6.00 ( nmap.org ) at 2013-11-01 14:01 SAST Nmap scan report for server.address.net ([server ip]) Host is up (0.014s latency). Not shown: 996 filtered ports PORT STATE SERVICE 22/tcp open ssh 80/tcp closed http 113/tcp closed ident 8008/tcp open http Nmap done: 1 IP address (1 host up) scanned in 5.12 seconds *notice it removes port 443 and allows 80 but is closed without removing previous rule and if I append rule: (allow and open port 1723 incoming to server on interface eth0) iptables -A INPUT -i eth0 -m tcp -p tcp --dport 1723 -j ACCEPT nmap output: nmap [server ip] Starting Nmap 6.00 ( nmap.org ) at 2013-11-01 14:05 SAST Nmap scan report for server.address.net ([server ip]) Host is up (0.015s latency). Not shown: 996 filtered ports PORT STATE SERVICE 22/tcp open ssh 80/tcp closed http 113/tcp closed ident 8008/tcp open http Nmap done: 1 IP address (1 host up) scanned in 5.16 seconds *notice no change in ports opened or closed??? after removing rules: iptables -A INPUT -i eth0 -m tcp -p tcp --dport 80 -j ACCEPT iptables -A INPUT -i eth0 -m tcp -p tcp --dport 1723 -j ACCEPT nmap output: nmap [server ip] Starting Nmap 6.00 ( nmap.org ) at 2013-11-01 14:07 SAST Nmap scan report for server.address.net ([server ip]) Host is up (0.015s latency). Not shown: 998 filtered ports PORT STATE SERVICE 22/tcp open ssh 113/tcp closed ident Nmap done: 1 IP address (1 host up) scanned in 5.15 seconds and returning rule: (to accept all tcp ports incoming to server on interface eth0) iptables -A INPUT -i eth0 -m tcp -j ACCEPT nmap output: nmap [server ip] Starting Nmap 6.00 ( nmap.org ) at 2013-11-01 14:07 SAST Nmap scan report for server.address.net ([server ip]) Host is up (0.017s latency). Not shown: 858 filtered ports, 139 closed ports PORT STATE SERVICE 22/tcp open ssh 443/tcp open https 8008/tcp open http Nmap done: 1 IP address (1 host up) scanned in 3.87 seconds notice the eth0 changes the 999 filtered ports to 858 filtered ports, 139 closed ports QUESTION: why cant I allow and/or open a specific port, eg. I want to allow and open port 443, it doesnt allow it, or even 1723 for pptp, why am I not able to??? sorry for the layout, the editor was give issues (aswell... sigh) UPDATE @Madhatter comment #1 thank you madhatter in my iptables file: # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i eth0 -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT # ----------all rules mentioned in post where added here ONLY!!!---------- -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT if I want to allow and open port 1723 (or edit iptables to allow a pptp connection from remote pc), what changes would I make? (please bear with me, my first time working with servers, etc.) Update MadHatter comment #2 iptables -L -n -v --line-numbers Chain INPUT (policy ACCEPT 0 packets, 0 bytes) num pkts bytes target prot opt in out source destination 1 9 660 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 2 0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 3 0 0 ACCEPT all -- eth0 * 0.0.0.0/0 0.0.0.0/0 4 0 0 ACCEPT all -- lo * 0.0.0.0/0 0.0.0.0/0 5 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22 6 0 0 REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) num pkts bytes target prot opt in out source destination 1 0 0 REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited Chain OUTPUT (policy ACCEPT 6 packets, 840 bytes) num pkts bytes target prot opt in out source destination just on a personal note, madhatter, thank you for the support , I really appreciate it! UPDATE MadHatter comment #3 here are the interfaces ifconfig eth0 Link encap:Ethernet HWaddr 00:1D:D8:B7:1F:DC inet addr:[server ip] Bcast:[server ip x.x.x].255 Mask:255.255.255.0 inet6 addr: fe80::21d:d8ff:feb7:1fdc/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:36692 errors:0 dropped:0 overruns:0 frame:0 TX packets:4247 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2830372 (2.6 MiB) TX bytes:427976 (417.9 KiB) 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:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:10.8.0.1 P-t-P:10.8.0.2 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP 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:100 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) remote nmap nmap -p 1723 [server ip] Starting Nmap 6.00 ( http://nmap.org ) at 2013-11-01 16:17 SAST Nmap scan report for server.address.net ([server ip]) Host is up (0.017s latency). PORT STATE SERVICE 1723/tcp filtered pptp Nmap done: 1 IP address (1 host up) scanned in 0.51 seconds local nmap nmap -p 1723 localhost Starting Nmap 5.51 ( http://nmap.org ) at 2013-11-01 16:19 SAST Nmap scan report for localhost (127.0.0.1) Host is up (0.000058s latency). Other addresses for localhost (not scanned): 127.0.0.1 PORT STATE SERVICE 1723/tcp open pptp Nmap done: 1 IP address (1 host up) scanned in 0.11 seconds UPDATE MadHatter COMMENT POST #4 I apologize, if there might have been any confusion, i did have the rule appended: (only after 3rd post) iptables -A INPUT -p tcp --dport 1723 -j ACCEPT netstat -apn|grep -w 1723 tcp 0 0 0.0.0.0:1723 0.0.0.0:* LISTEN 1142/pptpd There are not VPN's and firewalls between the server and "me" UPDATE MadHatter comment #5 So here is an intersting turn of events: I booted into windows 7, created a vpn connection, went through the verfication username & pword - checking the sstp then checking pptp (went through that very quickly which meeans there is no problem), but on teh verfication of username and pword (before registering pc on network), it got stuck, gave this error Connection failed with error 2147943625 The remote computer refused the network connection netstat -apn | grep -w 1723 before connecting: netstat -apn |grep -w 1723 tcp 0 0 0.0.0.0:1723 0.0.0.0:* LISTEN 1137/pptpd after the error came tried again: netstat -apn |grep -w 1723 tcp 0 0 0.0.0.0:1723 0.0.0.0:* LISTEN 1137/pptpd tcp 0 0 41.185.26.238:1723 41.13.212.47:49607 TIME_WAIT - I do not know what it means but seems like there is progress..., any thoughts???

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• Manage internet connection for a programm

  - by michel

  I'am using a Windows 7 pc with 2 networkcards one for public line and one for internal line behind proxy. is there a way or a software programm where i can manage wich programm(outlook, WM) use wich internet connection or networkcard use the option of interface metric is not where i was looking for. someone also suggest me Zonealarm. but i dislike this programm. thx

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• PPTP ping client to client error

  - by Linux Intel

  I installed pptp server on a centos 6 64bit server PPTP Server ip : 55.66.77.10 PPTP Local ip : 10.0.0.1 Client1 IP : 10.0.0.60 centos 5 64bit Client2 IP : 10.0.0.61 centos5 64bit PPTP Server can ping Client1 And client 1 can ping PPTP Server PPTP Server can ping Client2 And client 2 can ping PPTP Server The problem is client 1 can not ping Client 2 route -n on PPTP Server Destination Gateway Genmask Flags Metric Ref Use Iface 10.0.0.60 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 10.0.0.61 0.0.0.0 255.255.255.255 UH 0 0 0 ppp1 55.66.77.10 0.0.0.0 255.255.255.248 U 0 0 0 eth0 10.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 eth0 0.0.0.0 55.66.77.19 0.0.0.0 UG 0 0 0 eth0 route -n On Client 1 Destination Gateway Genmask Flags Metric Ref Use Iface 10.0.0.1 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 55.66.77.10 70.14.13.19 255.255.255.255 UGH 0 0 0 eth0 10.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 eth1 0.0.0.0 70.14.13.19 0.0.0.0 UG 0 0 0 eth0 route -n On Client 2 Destination Gateway Genmask Flags Metric Ref Use Iface 10.0.0.1 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 55.66.77.10 84.56.120.60 255.255.255.255 UGH 0 0 0 eth1 10.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 eth0 0.0.0.0 84.56.120.60 0.0.0.0 UG 0 0 0 eth1 cat /etc/ppp/options.pptpd on PPTP server ############################################################################### # $Id: options.pptpd,v 1.11 2005/12/29 01:21:09 quozl Exp $ # # Sample Poptop PPP options file /etc/ppp/options.pptpd # Options used by PPP when a connection arrives from a client. # This file is pointed to by /etc/pptpd.conf option keyword. # Changes are effective on the next connection. See "man pppd". # # You are expected to change this file to suit your system. As # packaged, it requires PPP 2.4.2 and the kernel MPPE module. ############################################################################### # Authentication # Name of the local system for authentication purposes # (must match the second field in /etc/ppp/chap-secrets entries) name pptpd # Strip the domain prefix from the username before authentication. # (applies if you use pppd with chapms-strip-domain patch) #chapms-strip-domain # Encryption # (There have been multiple versions of PPP with encryption support, # choose with of the following sections you will use.) # BSD licensed ppp-2.4.2 upstream with MPPE only, kernel module ppp_mppe.o # {{{ refuse-pap refuse-chap refuse-mschap # Require the peer to authenticate itself using MS-CHAPv2 [Microsoft # Challenge Handshake Authentication Protocol, Version 2] authentication. require-mschap-v2 # Require MPPE 128-bit encryption # (note that MPPE requires the use of MSCHAP-V2 during authentication) require-mppe-128 # }}} # OpenSSL licensed ppp-2.4.1 fork with MPPE only, kernel module mppe.o # {{{ #-chap #-chapms # Require the peer to authenticate itself using MS-CHAPv2 [Microsoft # Challenge Handshake Authentication Protocol, Version 2] authentication. #+chapms-v2 # Require MPPE encryption # (note that MPPE requires the use of MSCHAP-V2 during authentication) #mppe-40 # enable either 40-bit or 128-bit, not both #mppe-128 #mppe-stateless # }}} # Network and Routing # If pppd is acting as a server for Microsoft Windows clients, this # option allows pppd to supply one or two DNS (Domain Name Server) # addresses to the clients. The first instance of this option # specifies the primary DNS address; the second instance (if given) # specifies the secondary DNS address. #ms-dns 10.0.0.1 #ms-dns 10.0.0.2 # If pppd is acting as a server for Microsoft Windows or "Samba" # clients, this option allows pppd to supply one or two WINS (Windows # Internet Name Services) server addresses to the clients. The first # instance of this option specifies the primary WINS address; the # second instance (if given) specifies the secondary WINS address. #ms-wins 10.0.0.3 #ms-wins 10.0.0.4 # Add an entry to this system's ARP [Address Resolution Protocol] # table with the IP address of the peer and the Ethernet address of this # system. This will have the effect of making the peer appear to other # systems to be on the local ethernet. # (you do not need this if your PPTP server is responsible for routing # packets to the clients -- James Cameron) proxyarp # Normally pptpd passes the IP address to pppd, but if pptpd has been # given the delegate option in pptpd.conf or the --delegate command line # option, then pppd will use chap-secrets or radius to allocate the # client IP address. The default local IP address used at the server # end is often the same as the address of the server. To override this, # specify the local IP address here. # (you must not use this unless you have used the delegate option) #10.8.0.100 # Logging # Enable connection debugging facilities. # (see your syslog configuration for where pppd sends to) debug # Print out all the option values which have been set. # (often requested by mailing list to verify options) #dump # Miscellaneous # Create a UUCP-style lock file for the pseudo-tty to ensure exclusive # access. lock # Disable BSD-Compress compression nobsdcomp # Disable Van Jacobson compression # (needed on some networks with Windows 9x/ME/XP clients, see posting to # poptop-server on 14th April 2005 by Pawel Pokrywka and followups, # http://marc.theaimsgroup.com/?t=111343175400006&r=1&w=2 ) novj novjccomp # turn off logging to stderr, since this may be redirected to pptpd, # which may trigger a loopback nologfd # put plugins here # (putting them higher up may cause them to sent messages to the pty) cat /etc/ppp/options.pptp on Client1 and Client2 ############################################################################### # $Id: options.pptp,v 1.3 2006/03/26 23:11:05 quozl Exp $ # # Sample PPTP PPP options file /etc/ppp/options.pptp # Options used by PPP when a connection is made by a PPTP client. # This file can be referred to by an /etc/ppp/peers file for the tunnel. # Changes are effective on the next connection. See "man pppd". # # You are expected to change this file to suit your system. As # packaged, it requires PPP 2.4.2 or later from http://ppp.samba.org/ # and the kernel MPPE module available from the CVS repository also on # http://ppp.samba.org/, which is packaged for DKMS as kernel_ppp_mppe. ############################################################################### # Lock the port lock # Authentication # We don't need the tunnel server to authenticate itself noauth # We won't do PAP, EAP, CHAP, or MSCHAP, but we will accept MSCHAP-V2 # (you may need to remove these refusals if the server is not using MPPE) refuse-pap refuse-eap refuse-chap refuse-mschap # Compression # Turn off compression protocols we know won't be used nobsdcomp nodeflate # Encryption # (There have been multiple versions of PPP with encryption support, # choose which of the following sections you will use. Note that MPPE # requires the use of MSCHAP-V2 during authentication) # # Note that using PPTP with MPPE and MSCHAP-V2 should be considered # insecure: # http://marc.info/?l=pptpclient-devel&m=134372640219039&w=2 # https://github.com/moxie0/chapcrack/blob/master/README.md # http://technet.microsoft.com/en-us/security/advisory/2743314 # http://ppp.samba.org/ the PPP project version of PPP by Paul Mackarras # ppp-2.4.2 or later with MPPE only, kernel module ppp_mppe.o # If the kernel is booted in FIPS mode (fips=1), the ppp_mppe.ko module # is not allowed and PPTP-MPPE is not available. # {{{ # Require MPPE 128-bit encryption #require-mppe-128 # }}} # http://mppe-mppc.alphacron.de/ fork from PPP project by Jan Dubiec # ppp-2.4.2 or later with MPPE and MPPC, kernel module ppp_mppe_mppc.o # {{{ # Require MPPE 128-bit encryption #mppe required,stateless # }}} IPtables are stopped on clients and server, Also net.ipv4.ip_forward = 1 is enabled on PPTP Server. How can i solve this problem .?

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• win32, multiple nic, different dns per nic, how gethostbyname() behaves ?

  - by dweeves

  Hello SF, On a win32 multiple nic computer, how to force DNS resolving through gethostbyname() on a specific nic if all nics have different DNS configured and have the same metric ? Otherwise, how to know which DNS will be used to resolve names each time a gethostbyname() call will be performed by the application ?

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• Routing all data through an VPN tunnel with ppp

  - by Oliver

  I'm trying to create a VPN tunnel that forwards all data from the local machine to the VPN server. I'm using ppp-2.4.5 for this with the following configuration: pty "pptp <VPNServer> --nolaunchpppd" name <my login name> remotename PPTP usepeerdns require-mppe-128 file /etc/ppp/options.pptp persist maxfail 0 holdoff 5 I have a script in if-up.d with the following content: route del default eth0 route add default dev ppp0 Before starting the VPN tunnel my routing looks like: 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 2 0 0 eth0 127.0.0.0 127.0.0.1 255.0.0.0 UG 0 0 0 lo 192.168.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 After starting the tunnel (via pon) it looks like: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 ppp0 12.34.56.1 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 127.0.0.0 127.0.0.1 255.0.0.0 UG 0 0 0 lo 192.168.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 Now the problem is, that the VPN tunnel seems to be looped into itself. If I run ifconfig after a few seconds without any traffic: eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.0.10 netmask 255.255.0.0 broadcast 192.168.255.255 ether 00:01:2e:2f:ff:35 txqueuelen 1000 (Ethernet) RX packets 39931 bytes 6784614 (6.4 MiB) RX errors 0 dropped 90 overruns 0 frame 0 TX packets 34980 bytes 7633181 (7.2 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 20 memory 0xfbdc0000-fbde0000 ppp0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1496 inet 12.34.56.78 netmask 255.255.255.255 destination 12.34.56.1 ppp txqueuelen 3 (Point-to-Point Protocol) RX packets 7 bytes 94 (94.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 782863 bytes 349257986 (333.0 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 It states that already over 300 MiB have been send, ppp0 is only online since a few seconds and the connection isn't working anyway. Can someone please help me to fix the routing table, so that the traffic from ppp0 is not send again through ppp0 but instead goes to the remote server?

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• Second network card configuration not working.

  - by Sebas

  I have 4 servers running Centos 5. All of them have two ethernet network cards. I have configured 192.168.1.x IP addresses on their eth0 card. They are all connected to the same switch using their eth0 card and they are all working. I have configured 10.72.11.x IP addresses on their eth1 card.They are all connected to the same switch - a different one from the switch used with eth0 card - using their eth1 card and they are NOT all working. Their configuration files is like: DEVICE=eth1 BOOTPROTO=static IPADDR=10.72.11.236 BROADCAST=10.72.11.191 NETMASK=255.255.255.192 NETWORK=10.72.11.128 HWADDR=84:2B:2B:55:4B:98 IPV6INIT=yes IPV6_AUTOCONF=yes ONBOOT=yes The interfase is starting and configured as I need. [root@sql1 network-scripts]# ifconfig eth0 Link encap:Ethernet HWaddr 84:2B:2B:55:4B:97 inet addr:192.168.1.105 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::862b:2bff:fe55:4b97/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2981 errors:0 dropped:0 overruns:0 frame:0 TX packets:319 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:386809 (377.7 KiB) TX bytes:66134 (64.5 KiB) Interrupt:36 Memory:da000000-da012800 eth1 Link encap:Ethernet HWaddr 84:2B:2B:55:4B:98 inet addr:10.72.11.236 Bcast:10.72.11.191 Mask:255.255.255.192 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) Interrupt:48 Memory:dc000000-dc012800 I also added a route-eth1 file that looks like: 10.0.0.0/8 via 10.72.11.254 Routing looks fine to me: [root@sql1 network-scripts]# netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 10.72.11.192 0.0.0.0 255.255.255.192 U 0 0 0 eth1 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1 10.0.0.0 10.72.11.254 255.0.0.0 UG 0 0 0 eth1 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0 But I cannot ping one server from the other. [root@sql1 network-scripts]# ping 10.72.11.235 PING 10.72.11.235 (10.72.11.235) 56(84) bytes of data. From 10.72.11.236 icmp_seq=1 Destination Host Unreachable From 10.72.11.236 icmp_seq=2 Destination Host Unreachable From 10.72.11.236 icmp_seq=3 Destination Host Unreachable From 10.72.11.236 icmp_seq=4 Destination Host Unreachable From 10.72.11.236 icmp_seq=5 Destination Host Unreachable From 10.72.11.236 icmp_seq=6 Destination Host Unreachable ^C --- 10.72.11.235 ping statistics --- 7 packets transmitted, 0 received, +6 errors, 100% packet loss, time 6033ms , pipe 3 What am I doing wrong?

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• Where route to 169.254.0.0 comes from?

  - by jackhab

  Running CentOS 5.4 Why do I have route to 169.254.0.0 although it does not appear in Network Ethernet Device Route configuration dialog? Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.1.0 * 255.255.255.0 U 0 0 0 eth2 169.254.0.0 * 255.255.0.0 U 0 0 0 eth2 default 192.168.1.1 0.0.0.0 UG 0 0 0 eth2 Thanks.

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• route http and ssh traffic normally, everything else via vpn tunnel

  - by Normadize

  I've read quite a bit and am close, I feel, and I'm pulling my hair out ... please help! I have an OpenVPN cliend whose server sets local routes and also changes the default gw (I know I can prevent that with --route-nopull). I'd like to have all outgoing http and ssh traffic via the local gw, and everything else via the vpn. Local IP is 192.168.1.6/24, gw 192.168.1.1. OpenVPN local IP is 10.102.1.6/32, gw 192.168.1.5 OpenVPN server is at {OPENVPN_SERVER_IP} Here's the route table after openvpn connection: # ip route show table main 0.0.0.0/1 via 10.102.1.5 dev tun0 default via 192.168.1.1 dev eth0 proto static 10.102.1.1 via 10.102.1.5 dev tun0 10.102.1.5 dev tun0 proto kernel scope link src 10.102.1.6 {OPENVPN_SERVER_IP} via 192.168.1.1 dev eth0 128.0.0.0/1 via 10.102.1.5 dev tun0 169.254.0.0/16 dev eth0 scope link metric 1000 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.6 metric 1 This makes all packets go via to the VPN tunnel except those destined for 192.168.1.0/24. Doing wget -qO- http://echoip.org shows the vpn server's address, as expected, the packets have 10.102.1.6 as source address (the vpn local ip), and are routed via tun0 ... as reported by tcpdump -i tun0 (tcpdump -i eth0 sees none of this traffic). What I tried was: create a 2nd routing table holding the 192.168.1.6/24 routing info (copied from the main table above) add an iptables -t mangle -I PREROUTING rule to mark packets destined for port 80 add an ip rule to match on the mangled packet and point it to the 2nd routing table add an ip rule for to 192.168.1.6 and from 192.168.1.6 to point to the 2nd routing table (though this is superfluous) changed the ipv4 filter validation to none in net.ipv4.conf.tun0.rp_filter=0 and net.ipv4.conf.eth0.rp_filter=0 I also tried an iptables mangle output rule, iptables nat prerouting rule. It still fails and I'm not sure what I'm missing: iptables mangle prerouting: packet still goes via vpn iptables mangle output: packet times out Is it not the case that to achieve what I want, then when doing wget http://echoip.org I should change the packet's source address to 192.168.1.6 before routing it off? But if I do that, the response from the http server would be routed back to 192.168.1.6 and wget would not see it as it is still bound to tun0 (the vpn interface)? Can a kind soul please help? What commands would you execute after the openvpn connects to achieve what I want? Looking forward to hair regrowth ...

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• How to direct outgoing traffic through specific interface?

  - by user1434058

  I added eth1 and eth2 to my Ubuntu Server, all 3 use DHCP and are on the same lan eth0 10.0.0.41 eth1 10.0.0.42 eth3 10.0.0.43 Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default router.net 0.0.0.0 UG 100 0 0 eth0 10.0.0.0 * 255.255.255.0 U 0 0 0 eth0 10.0.0.0 * 255.255.255.0 U 0 0 0 eth1 10.0.0.0 * 255.255.255.0 U 0 0 0 eth2 curl --interface eth1 www.google.com doesn't work what else do i need to do for the above to work?

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• Why is Windows 7 not following all routes?

  - by GigabyteProductions

  My computer is connected to my secondary router that's running the 192.168.42.0/24 network and my computer also has a route that directs anything on that network to the router, but for anything on that network other than the router itself, it get's the ICMP response of Reply from 192.168.42.194: Destination host unreachable. (with 192.168.42.194 being my computer). Every other network works, like all of the internet, or addresses on my primary router like 192.168.1.*, just not on the 192.168.42.0/24 network... route print returns: IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 192.168.42.1 192.168.42.194 276 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 192.168.42.0 255.255.255.0 On-link 192.168.42.194 276 192.168.42.194 255.255.255.255 On-link 192.168.42.194 276 192.168.42.255 255.255.255.255 On-link 192.168.42.194 276 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 192.168.42.194 276 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link 192.168.42.194 276 =========================================================================== Persistent Routes: Network Address Netmask Gateway Address Metric 0.0.0.0 0.0.0.0 192.168.42.1 Default =========================================================================== The only time anything is supposed to send an ICMP Host Unreachable response is when there's no route to it, right? So, why is my own computer sending that to ping or tracert when I have the route of 192.168.42.0 with the mask of 255.255.255.0? An IP address of 192.168.42.2 surely fits into that route. If I explicitly add a route for the IP address i am trying to access, it works, like: route add 192.168.42.2 mask 255.255.255.255 192.168.42.1 (the 192.168.42.1 right after mask is gateway, or the device to send the packet to so it can route it further), but why wont it work for the implicit route that's automatically on the table? I disabled my firewall, too (I use Comodo if anyone thinks this still serves as a problem). I'v even tried explicitly adding the gateway of 192.168.42.1 to the 192.168.42.0/24 route instead of it routing through 0.0.0.0's gateway, which is what On-link does. but that didn't work either, so it's not a gateway specification problem. If the host was really unreachable, it would be the router's IP address (192.168.42.1) sending that to me... This network is all of my creation, so there's no problem such as an administrator locking me out, because i am the administrator.

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• Click edit button twice in gridview asp.net c# issue

  - by Supriyo Banerjee

  I have a gridview created on a page where I want to provide an edit button for the user to click in. However the issue is the grid view row becomes editable only while clicking the edit button second time. Not sure what is going wrong here, any help would be appreciated. One additional point is my grid view is displayed on the page only on a click of a button and is not there on page_load event hence. Posting the code snippets: //MY Aspx code <Columns> <asp:TemplateField HeaderText="Slice" SortExpression="name"> <ItemTemplate> <asp:Label ID="lblslice" Text='<%# Eval("slice") %>' runat="server"></asp:Label> </ItemTemplate> <EditItemTemplate> <asp:Label ID="lblslice" Text='<%# Eval("slice") %>' runat="server"></asp:Label> </EditItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Metric" SortExpression="Description"> <ItemTemplate> <asp:Label ID="lblmetric" Text='<%# Eval("metric")%>' runat="server"></asp:Label> </ItemTemplate> <EditItemTemplate> <asp:Label ID="lblmetric" Text='<%# Eval("metric")%>' runat="server"></asp:Label> </EditItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Original" SortExpression="Type"> <ItemTemplate> <asp:Label ID="lbloriginal" Text='<%# Eval("Original")%>' runat="server"></asp:Label> </ItemTemplate> <EditItemTemplate> <asp:Label ID="lbloriginal" Text='<%# Eval("Original")%>' runat="server"></asp:Label> </EditItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="WOW" SortExpression="Market"> <ItemTemplate> <asp:Label ID="lblwow" Text='<%# Eval("WOW")%>' runat="server"></asp:Label> </ItemTemplate> <EditItemTemplate> <asp:Label ID="lblwow" Text='<%# Eval("WOW")%>' runat="server"></asp:Label> </EditItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Change" SortExpression="Market" > <ItemTemplate> <asp:Label ID="lblChange" Text='<%# Eval("Change")%>' runat="server"></asp:Label> </ItemTemplate> <EditItemTemplate> <asp:TextBox ID="TxtCustomerID" Text='<%# Eval("Change") %> ' runat="server"></asp:TextBox> </EditItemTemplate> </asp:TemplateField> <asp:CommandField HeaderText="Edit" ShowEditButton="True" /> </Columns> </asp:GridView> //My code behind: protected void Page_Load(object sender, EventArgs e) { } public void populagridview1(string slice,string fromdate,string todate,string year) { SqlCommand cmd; SqlDataAdapter da; DataSet ds; cmd = new SqlCommand(); cmd.CommandType = CommandType.StoredProcedure; cmd.CommandText = "usp_geteventchanges"; cmd.Connection = conn; conn.Open(); SqlParameter param1 = new SqlParameter("@slice", slice); cmd.Parameters.Add(param1); SqlParameter param2 = new SqlParameter("@fromdate", fromdate); cmd.Parameters.Add(param2); SqlParameter param3 = new SqlParameter("@todate", todate); cmd.Parameters.Add(param3); SqlParameter param4 = new SqlParameter("@year", year); cmd.Parameters.Add(param4); da = new SqlDataAdapter(cmd); ds = new DataSet(); da.Fill(ds, "Table"); GridView1.DataSource = ds; GridView1.DataBind(); conn.Close(); } protected void ImpactCalc(object sender, EventArgs e) { populagridview1(ddl_slice.SelectedValue, dt_to_integer(Picker1.Text), dt_to_integer(Picker2.Text), Txt_Year.Text); } protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) { gvEditIndex = e.NewEditIndex; Gridview1.DataBind(); } My page layout This edit screen appears after clicking edit twice.. the grid view gets displayed on hitting the Calculate impact button. The data is from a backend stored procedure which is fired on clicking the Calculate impact button

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• World Record Batch Rate on Oracle JD Edwards Consolidated Workload with SPARC T4-2

  - by Brian

  Oracle produced a World Record batch throughput for single system results on Oracle's JD Edwards EnterpriseOne Day-in-the-Life benchmark using Oracle's SPARC T4-2 server running Oracle Solaris Containers and consolidating JD Edwards EnterpriseOne, Oracle WebLogic servers and the Oracle Database 11g Release 2. The workload includes both online and batch workload. The SPARC T4-2 server delivered a result of 8,000 online users while concurrently executing a mix of JD Edwards EnterpriseOne Long and Short batch processes at 95.5 UBEs/min (Universal Batch Engines per minute). In order to obtain this record benchmark result, the JD Edwards EnterpriseOne, Oracle WebLogic and Oracle Database 11g Release 2 servers were executed each in separate Oracle Solaris Containers which enabled optimal system resources distribution and performance together with scalable and manageable virtualization. One SPARC T4-2 server running Oracle Solaris Containers and consolidating JD Edwards EnterpriseOne, Oracle WebLogic servers and the Oracle Database 11g Release 2 utilized only 55% of the available CPU power. The Oracle DB server in a Shared Server configuration allows for optimized CPU resource utilization and significant memory savings on the SPARC T4-2 server without sacrificing performance. This configuration with SPARC T4-2 server has achieved 33% more Users/core, 47% more UBEs/min and 78% more Users/rack unit than the IBM Power 770 server. The SPARC T4-2 server with 2 processors ran the JD Edwards "Day-in-the-Life" benchmark and supported 8,000 concurrent online users while concurrently executing mixed batch workloads at 95.5 UBEs per minute. The IBM Power 770 server with twice as many processors supported only 12,000 concurrent online users while concurrently executing mixed batch workloads at only 65 UBEs per minute. This benchmark demonstrates more than 2x cost savings by consolidating the complete solution in a single SPARC T4-2 server compared to earlier published results of 10,000 users and 67 UBEs per minute on two SPARC T4-2 and SPARC T4-1. The Oracle DB server used mirrored (RAID 1) volumes for the database providing high availability for the data without impacting performance. Performance Landscape JD Edwards EnterpriseOne Day in the Life (DIL) Benchmark Consolidated Online with Batch Workload System Rack Units BatchRate(UBEs/m) Online Users Users /Units Users /Core Version SPARC T4-2 (2 x SPARC T4, 2.85 GHz) 3 95.5 8,000 2,667 500 9.0.2 IBM Power 770 (4 x POWER7, 3.3 GHz, 32 cores) 8 65 12,000 1,500 375 9.0.2 Batch Rate (UBEs/m) — Batch transaction rate in UBEs per minute Configuration Summary Hardware Configuration: 1 x SPARC T4-2 server with 2 x SPARC T4 processors, 2.85 GHz 256 GB memory 4 x 300 GB 10K RPM SAS internal disk 2 x 300 GB internal SSD 2 x Sun Storage F5100 Flash Arrays Software Configuration: Oracle Solaris 10 Oracle Solaris Containers JD Edwards EnterpriseOne 9.0.2 JD Edwards EnterpriseOne Tools (8.98.4.2) Oracle WebLogic Server 11g (10.3.4) Oracle HTTP Server 11g Oracle Database 11g Release 2 (11.2.0.1) Benchmark Description JD Edwards EnterpriseOne is an integrated applications suite of Enterprise Resource Planning (ERP) software. Oracle offers 70 JD Edwards EnterpriseOne application modules to support a diverse set of business operations. Oracle's Day in the Life (DIL) kit is a suite of scripts that exercises most common transactions of JD Edwards EnterpriseOne applications, including business processes such as payroll, sales order, purchase order, work order, and manufacturing processes, such as ship confirmation. These are labeled by industry acronyms such as SCM, CRM, HCM, SRM and FMS. The kit's scripts execute transactions typical of a mid-sized manufacturing company. The workload consists of online transactions and the UBE – Universal Business Engine workload of 61 short and 4 long UBEs. LoadRunner runs the DIL workload, collects the user’s transactions response times and reports the key metric of Combined Weighted Average Transaction Response time. The UBE processes workload runs from the JD Enterprise Application server. Oracle's UBE processes come as three flavors: Short UBEs < 1 minute engage in Business Report and Summary Analysis, Mid UBEs > 1 minute create a large report of Account, Balance, and Full Address, Long UBEs > 2 minutes simulate Payroll, Sales Order, night only jobs. The UBE workload generates large numbers of PDF files reports and log files. The UBE Queues are categorized as the QBATCHD, a single threaded queue for large and medium UBEs, and the QPROCESS queue for short UBEs run concurrently. Oracle's UBE process performance metric is Number of Maximum Concurrent UBE processes at transaction rate, UBEs/minute. Key Points and Best Practices Two JD Edwards EnterpriseOne Application Servers, two Oracle WebLogic Servers 11g Release 1 coupled with two Oracle Web Tier HTTP server instances and one Oracle Database 11g Release 2 database on a single SPARC T4-2 server were hosted in separate Oracle Solaris Containers bound to four processor sets to demonstrate consolidation of multiple applications, web servers and the database with best resource utilizations. Interrupt fencing was configured on all Oracle Solaris Containers to channel the interrupts to processors other than the processor sets used for the JD Edwards Application server, Oracle WebLogic servers and the database server. A Oracle WebLogic vertical cluster was configured on each WebServer Container with twelve managed instances each to load balance users' requests and to provide the infrastructure that enables scaling to high number of users with ease of deployment and high availability. The database log writer was run in the real time RT class and bound to a processor set. The database redo logs were configured on the raw disk partitions. The Oracle Solaris Container running the Enterprise Application server completed 61 Short UBEs, 4 Long UBEs concurrently as the mixed size batch workload. The mixed size UBEs ran concurrently from the Enterprise Application server with the 8,000 online users driven by the LoadRunner. See Also SPARC T4-2 Server oracle.com OTN JD Edwards EnterpriseOne oracle.com OTN Oracle Solaris oracle.com OTN Oracle Database 11g Release 2 Enterprise Edition oracle.com OTN Oracle Fusion Middleware oracle.com OTN Disclosure Statement Copyright 2012, Oracle and/or its affiliates. All rights reserved. Oracle and Java are registered trademarks of Oracle and/or its affiliates. Other names may be trademarks of their respective owners. Results as of 09/30/2012.

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• I Start!

  - by andyleonard

  I originally titled this post "I Quit!" but decided that doesn't set the proper tone and definitely does not match my feelings about the upcoming transitions in my life. "I Start!" is much more appropriate! Introduction I've tendered my resignation from the position of Manager, ETL Team, Data Management Group, Molina Medicaid Solutions effective Friday 14 Jan 2011. "There I Was..." In 2008 my consultant billable-days - the metric I use to determine how business is going - dropped from 20 / month...(read more)

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• SPARC T4-4 Delivers World Record First Result on PeopleSoft Combined Benchmark

  - by Brian

  Oracle's SPARC T4-4 servers running Oracle's PeopleSoft HCM 9.1 combined online and batch benchmark achieved World Record 18,000 concurrent users while executing a PeopleSoft Payroll batch job of 500,000 employees in 43.32 minutes and maintaining online users response time at < 2 seconds. This world record is the first to run online and batch workloads concurrently. This result was obtained with a SPARC T4-4 server running Oracle Database 11g Release 2, a SPARC T4-4 server running PeopleSoft HCM 9.1 application server and a SPARC T4-2 server running Oracle WebLogic Server in the web tier. The SPARC T4-4 server running the application tier used Oracle Solaris Zones which provide a flexible, scalable and manageable virtualization environment. The average CPU utilization on the SPARC T4-2 server in the web tier was 17%, on the SPARC T4-4 server in the application tier it was 59%, and on the SPARC T4-4 server in the database tier was 35% (online and batch) leaving significant headroom for additional processing across the three tiers. The SPARC T4-4 server used for the database tier hosted Oracle Database 11g Release 2 using Oracle Automatic Storage Management (ASM) for database files management with I/O performance equivalent to raw devices. This is the first three tier mixed workload (online and batch) PeopleSoft benchmark also processing PeopleSoft payroll batch workload. Performance Landscape PeopleSoft HR Self-Service and Payroll Benchmark Systems Users Ave Response Search (sec) Ave Response Save (sec) Batch Time (min) Streams SPARC T4-2 (web) SPARC T4-4 (app) SPARC T4-2 (db) 18,000 0.944 0.503 43.32 64 Configuration Summary Application Configuration: 1 x SPARC T4-4 server with 4 x SPARC T4 processors, 3.0 GHz 512 GB memory 5 x 300 GB SAS internal disks 1 x 100 GB and 2 x 300 GB internal SSDs 2 x 10 Gbe HBA Oracle Solaris 11 11/11 PeopleTools 8.52 PeopleSoft HCM 9.1 Oracle Tuxedo, Version 10.3.0.0, 64-bit, Patch Level 031 Java Platform, Standard Edition Development Kit 6 Update 32 Database Configuration: 1 x SPARC T4-4 server with 4 x SPARC T4 processors, 3.0 GHz 256 GB memory 3 x 300 GB SAS internal disks Oracle Solaris 11 11/11 Oracle Database 11g Release 2 Web Tier Configuration: 1 x SPARC T4-2 server with 2 x SPARC T4 processors, 2.85 GHz 256 GB memory 2 x 300 GB SAS internal disks 1 x 100 GB internal SSD Oracle Solaris 11 11/11 PeopleTools 8.52 Oracle WebLogic Server 10.3.4 Java Platform, Standard Edition Development Kit 6 Update 32 Storage Configuration: 1 x Sun Server X2-4 as a COMSTAR head for data 4 x Intel Xeon X7550, 2.0 GHz 128 GB memory 1 x Sun Storage F5100 Flash Array (80 flash modules) 1 x Sun Storage F5100 Flash Array (40 flash modules) 1 x Sun Fire X4275 as a COMSTAR head for redo logs 12 x 2 TB SAS disks with Niwot Raid controller Benchmark Description This benchmark combines PeopleSoft HCM 9.1 HR Self Service online and PeopleSoft Payroll batch workloads to run on a unified database deployed on Oracle Database 11g Release 2. The PeopleSoft HRSS benchmark kit is a Oracle standard benchmark kit run by all platform vendors to measure the performance. It's an OLTP benchmark where DB SQLs are moderately complex. The results are certified by Oracle and a white paper is published. PeopleSoft HR SS defines a business transaction as a series of HTML pages that guide a user through a particular scenario. Users are defined as corporate Employees, Managers and HR administrators. The benchmark consist of 14 scenarios which emulate users performing typical HCM transactions such as viewing paycheck, promoting and hiring employees, updating employee profile and other typical HCM application transactions. All these transactions are well-defined in the PeopleSoft HR Self-Service 9.1 benchmark kit. This benchmark metric is the weighted average response search/save time for all the transactions. The PeopleSoft 9.1 Payroll (North America) benchmark demonstrates system performance for a range of processing volumes in a specific configuration. This workload represents large batch runs typical of a ERP environment during a mass update. The benchmark measures five application business process run times for a database representing large organization. They are Paysheet Creation, Payroll Calculation, Payroll Confirmation, Print Advice forms, and Create Direct Deposit File. The benchmark metric is the cumulative elapsed time taken to complete the Paysheet Creation, Payroll Calculation and Payroll Confirmation business application processes. The benchmark metrics are taken for each respective benchmark while running simultaneously on the same database back-end. Specifically, the payroll batch processes are started when the online workload reaches steady state (the maximum number of online users) and overlap with online transactions for the duration of the steady state. Key Points and Best Practices Two Oracle PeopleSoft Domain sets with 200 application servers each on a SPARC T4-4 server were hosted in 2 separate Oracle Solaris Zones to demonstrate consolidation of multiple application servers, ease of administration and performance tuning. Each Oracle Solaris Zone was bound to a separate processor set, each containing 15 cores (total 120 threads). The default set (1 core from first and third processor socket, total 16 threads) was used for network and disk interrupt handling. This was done to improve performance by reducing memory access latency by using the physical memory closest to the processors and offload I/O interrupt handling to default set threads, freeing up cpu resources for Application Servers threads and balancing application workload across 240 threads. See Also Oracle PeopleSoft Benchmark White Papers oracle.com SPARC T4-2 Server oracle.com OTN SPARC T4-4 Server oracle.com OTN PeopleSoft Enterprise Human Capital Management oracle.com OTN PeopleSoft Enterprise Human Capital Management (Payroll) oracle.com OTN Oracle Solaris oracle.com OTN Oracle Database 11g Release 2 Enterprise Edition oracle.com OTN Disclosure Statement Oracle's PeopleSoft HR and Payroll combined benchmark, www.oracle.com/us/solutions/benchmark/apps-benchmark/peoplesoft-167486.html, results 09/30/2012.

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• I have a problem with a AE1200 Cisco/Linksys Wireless-N USB adapter having stopped working after I ran the update manager in Ubuntu 12.04

  - by user69670

  Here is the problem, I use a Cisco/Linksys AE1200 wireless network adapter to connect my desktop to a public wifi internet connection. I use ndiswrapper to use the windows driver and it had been working fine for me untill I ran the update manager overnight a few days ago. When I woke up it was asking for the normal computer restart to implement the changes but after rebooting the computer, the wireless adapter did not work, the status light on the adapter did not light up even though ubuntu recognizes it is there and according to ndiswrapper the drivers are loaded and the hardware is present. the grep command is being a bitch for some unknown reason today so this will be long sorry Output from "lspci": 00:00.0 Host bridge: Advanced Micro Devices [AMD] nee ATI Radeon Xpress 200 Host Bridge (rev 01) 00:01.0 PCI bridge: Advanced Micro Devices [AMD] nee ATI RS480 PCI Bridge 00:12.0 SATA controller: Advanced Micro Devices [AMD] nee ATI SB600 Non-Raid-5 SATA 00:13.0 USB controller: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI0) 00:13.1 USB controller: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI1) 00:13.2 USB controller: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI2) 00:13.3 USB controller: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI3) 00:13.4 USB controller: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI4) 00:13.5 USB controller: Advanced Micro Devices [AMD] nee ATI SB600 USB Controller (EHCI) 00:14.0 SMBus: Advanced Micro Devices [AMD] nee ATI SBx00 SMBus Controller (rev 13) 00:14.1 IDE interface: Advanced Micro Devices [AMD] nee ATI SB600 IDE 00:14.3 ISA bridge: Advanced Micro Devices [AMD] nee ATI SB600 PCI to LPC Bridge 00:14.4 PCI bridge: Advanced Micro Devices [AMD] nee ATI SBx00 PCI to PCI Bridge 01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RC410 [Radeon Xpress 200] 02:02.0 Communication controller: Conexant Systems, Inc. HSF 56k Data/Fax Modem 02:03.0 Multimedia audio controller: Creative Labs CA0106 Soundblaster 02:05.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10) Output from "lsusb": Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 009: ID 13b1:0039 Linksys AE1200 802.11bgn Wireless Adapter [Broadcom BCM43235] Bus 003 Device 002: ID 045e:0053 Microsoft Corp. Optical Mouse Bus 004 Device 002: ID 1043:8006 iCreate Technologies Corp. Flash Disk 32-256 MB Output from "ifconfig": eth0 Link encap:Ethernet HWaddr 00:19:21:b6:af:7c 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) Interrupt:20 Base address:0xb400 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:13232 errors:0 dropped:0 overruns:0 frame:0 TX packets:13232 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1084624 (1.0 MB) TX bytes:1084624 (1.0 MB) Output from "iwconfig": lo no wireless extensions. eth0 no wireless extensions. Output from "lsmod": Module Size Used by nls_iso8859_1 12617 1 nls_cp437 12751 1 vfat 17308 1 fat 55605 1 vfat uas 17828 0 usb_storage 39646 1 nls_utf8 12493 1 udf 84366 1 crc_itu_t 12627 1 udf snd_ca0106 39279 2 snd_ac97_codec 106082 1 snd_ca0106 ac97_bus 12642 1 snd_ac97_codec snd_pcm 80845 2 snd_ca0106,snd_ac97_codec rfcomm 38139 0 snd_seq_midi 13132 0 snd_rawmidi 25424 2 snd_ca0106,snd_seq_midi bnep 17830 2 parport_pc 32114 0 bluetooth 158438 10 rfcomm,bnep ppdev 12849 0 snd_seq_midi_event 14475 1 snd_seq_midi snd_seq 51567 2 snd_seq_midi,snd_seq_midi_event snd_timer 28931 2 snd_pcm,snd_seq snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq snd 62064 11 snd_ca0106, snd_ac97_codec,snd_pcm,snd_rawj9fe snd_ca0106,snd_ac97_codec,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device soundcore 14635 1 snd snd_page_alloc 14108 2 snd_ca0106,snd_pcm sp5100_tco 13495 0 i2c_piix4 13093 0 radeon 733693 3 ttm 65344 1 radeon drm_kms_helper 45466 1 radeon drm 197692 5 radeon,ttm,drm_kms_helper i2c_algo_bit 13199 1 radeon mac_hid 13077 0 shpchp 32325 0 ati_agp 13242 0 lp 17455 0 parport 40930 3 parport_pc,ppdev,lp usbhid 41906 0 hid 77367 1 usbhid 8139too 23283 0 8139cp 26759 0 pata_atiixp 12999 1 Output from "sudo lshw -C network": *-network description: Ethernet interface product: RTL-8139/8139C/8139C+ vendor: Realtek Semiconductor Co., Ltd. physical id: 5 bus info: pci@0000:02:05.0 logical name: eth0 version: 10 serial: 00:19:21:b6:af:7c size: 10Mbit/s capacity: 100Mbit/s width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 10 0bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=8139too driverversion=0.9.28 duplex=half latency=64 link=no maxlatency=64 mingnt=32 multicast=yes port=MII speed=10Mbit/s resources: irq:20 ioport:b400(size=256) memory:ff5fdc00-ff5fdcff Output from "iwlist scan": lo Interface doesn't support scanning. eth0 Interface doesn't support scanning. Output from "lsb_release -d": Ubuntu 12.04 LTS Output from "uname -mr": 3.2.0-24-generic-pae i686 Output from "sudo /etc/init.d/networking restart": * Running /etc/init.d/networking restart is deprecated because it may not enable again some interfaces * Reconfiguring network interfaces... [ OK ]

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• Cannot connect to Onda GSM phone using network-manager

  - by marcobra

  On Oneiric unstable fully updated/upgraded using network-manager broadband connection with: ID 19d2:1015 ONDA Communication S.p.A. I want some hints to make a Onda GSM usbkey 19d2:1015 work? route show me Destination Gateway Genmask Flags Metric Ref Use Iface default * 0.0.0.0 U 0 0 0 usb0 link-local * 255.255.0.0 U 1000 0 0 usb0 It connects and the usb0 device get ip-address from the provider but I cannot get webpages (also typing a known ip in firefox) It seem to be something about routing default gw, there is no active firewall on this pc btw, all works using sakis3g or wvdial or gnome-ppp

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• English as a system language but Russian regional settings

  - by mbaitoff

  I usually choose English as an installation language since I believe that the original is better than the translation. However, the environment I'm working in is mostly Russian, so I have to deal with locale specificity. Even worse is the fact that selecting English yields to royal measurement system, that is, feet, inches, and damned letter paper size. Whatever I do, I didn't manage to get rid of letter paper size - eventually here and there I stumble upon letter as a hidden default, and that spoils my prints. How can I select and use English as my language, but use metric system everywhere and a4 paper size everywhere, and Russian regional settings (date, time, decimal etc).

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• Unable to keep the connecting using a wireless bridge

  - by dan

  I am running Ubuntu 12.04 on a dell inspiron desktop (core 2 duo) and am using wicd to manage my network/wifi. I've found that the WiFi card in the machine has trouble staying connected to my router (I believe this is a function of distance between the two), so I've taken an old Belkin F5d7231 wireless router and installed dd-wrt on it to use as a wireless bridge hoping that it will have better reception. I think everything up through the wireless bridge is working OK since I have no problems accessing the internet through it with my MacBook. The problem arises when I try to hook the ubuntu machine up to the wireless bridge. It will connect for a few minutes, but it will quickly disconnect without clear triggering event; it may be more likely to disconnect if there is a heavy traffic load going over it (could be something as simple as "cat big_text_file" in an ssh session). I've tried switching from dhclient to dhcpcd without much improvement. Here is the output from the syslog when it connects: Jun 30 17:10:08 Chicabuntu dhcpcd[28278]: wlan1: dhcpcd not running Jun 30 17:10:08 Chicabuntu dhcpcd[28278]: wlan1: exiting Jun 30 17:10:08 Chicabuntu dhcpcd[28312]: eth0: dhcpcd not running Jun 30 17:10:08 Chicabuntu dhcpcd[28312]: eth0: exiting Jun 30 17:10:08 Chicabuntu avahi-daemon[1041]: Interface eth0.IPv6 no longer relevant for mDNS. Jun 30 17:10:08 Chicabuntu avahi-daemon[1041]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::21c:c4ff:fe31:1a83. Jun 30 17:10:08 Chicabuntu avahi-daemon[1041]: Withdrawing address record for fe80::21c:c4ff:fe31:1a83 on eth0. Jun 30 17:10:08 Chicabuntu kernel: [15184.976127] tg3 0000:3f:00.0: irq 44 for MSI/MSI-X Jun 30 17:10:08 Chicabuntu kernel: [15185.010805] ADDRCONF(NETDEV_UP): eth0: link is not ready Jun 30 17:10:08 Chicabuntu dhcpcd[28347]: eth0: dhcpcd not running Jun 30 17:10:08 Chicabuntu dhcpcd[28347]: eth0: exiting Jun 30 17:10:08 Chicabuntu kernel: [15185.180156] tg3 0000:3f:00.0: irq 44 for MSI/MSI-X Jun 30 17:10:08 Chicabuntu kernel: [15185.212785] ADDRCONF(NETDEV_UP): eth0: link is not ready Jun 30 17:10:10 Chicabuntu kernel: [15187.027445] tg3 0000:3f:00.0: eth0: Link is up at 100 Mbps, full duplex Jun 30 17:10:10 Chicabuntu kernel: [15187.027452] tg3 0000:3f:00.0: eth0: Flow control is on for TX and on for RX Jun 30 17:10:10 Chicabuntu kernel: [15187.028300] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready Jun 30 17:10:10 Chicabuntu dhcpcd[28353]: eth0: dhcpcd 3.2.3 starting Jun 30 17:10:10 Chicabuntu dhcpcd[28353]: eth0: hardware address = 00:1c:c4:31:1a:83 Jun 30 17:10:10 Chicabuntu dhcpcd[28353]: eth0: DUID = 00:01:00:01:17:81:85:79:00:1c:c4:31:1a:83 Jun 30 17:10:10 Chicabuntu dhcpcd[28353]: eth0: broadcasting for a lease Jun 30 17:10:11 Chicabuntu avahi-daemon[1041]: Joining mDNS multicast group on interface eth0.IPv6 with address fe80::21c:c4ff:fe31:1a83. Jun 30 17:10:11 Chicabuntu avahi-daemon[1041]: New relevant interface eth0.IPv6 for mDNS. Jun 30 17:10:11 Chicabuntu avahi-daemon[1041]: Registering new address record for fe80::21c:c4ff:fe31:1a83 on eth0.*. Jun 30 17:10:20 Chicabuntu kernel: [15197.568016] eth0: no IPv6 routers present Jun 30 17:10:29 Chicabuntu dhcpcd[28353]: eth0: offered 192.168.1.111 from 192.168.1.254 Jun 30 17:10:29 Chicabuntu dhcpcd[28353]: eth0: checking 192.168.1.111 is available on attached networks Jun 30 17:10:30 Chicabuntu dhcpcd[28353]: eth0: leased 192.168.1.111 for 86400 seconds Jun 30 17:10:30 Chicabuntu dhcpcd[28353]: eth0: adding IP address 192.168.1.111/24 Jun 30 17:10:30 Chicabuntu avahi-daemon[1041]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.111. Jun 30 17:10:30 Chicabuntu dhcpcd[28353]: eth0: adding default route via 192.168.1.254 metric 0 Jun 30 17:10:30 Chicabuntu dhcpcd[28353]: eth0: exiting Jun 30 17:10:30 Chicabuntu avahi-daemon[1041]: New relevant interface eth0.IPv4 for mDNS. Jun 30 17:10:30 Chicabuntu avahi-daemon[1041]: Registering new address record for 192.168.1.111 on eth0.IPv4. Jun 30 17:10:30 Chicabuntu dhcpcd.sh: interface eth0 has been configured with new IP=192.168.1.111 Jun 30 17:10:39 Chicabuntu ntpdate[28439]: adjust time server 91.189.94.4 offset 0.001915 sec And here is the syslog from when it shuts down the connection without reason: Jun 30 17:12:15 Chicabuntu kernel: [15312.575455] tg3 0000:3f:00.0: eth0: Link is down Jun 30 17:12:16 Chicabuntu dhcpcd[28603]: eth0: sending signal 1 to pid 28361 Jun 30 17:12:16 Chicabuntu dhcpcd[28361]: eth0: received SIGHUP, releasing lease Jun 30 17:12:16 Chicabuntu dhcpcd[28603]: eth0: exiting Jun 30 17:12:16 Chicabuntu avahi-daemon[1041]: Withdrawing address record for 192.168.1.111 on eth0. Jun 30 17:12:16 Chicabuntu avahi-daemon[1041]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.1.111. Jun 30 17:12:16 Chicabuntu avahi-daemon[1041]: Interface eth0.IPv4 no longer relevant for mDNS. Jun 30 17:12:16 Chicabuntu dhcpcd[28361]: eth0: removing default route via 192.168.1.254 metric 0 Jun 30 17:12:16 Chicabuntu avahi-daemon[1041]: Interface eth0.IPv6 no longer relevant for mDNS. Jun 30 17:12:16 Chicabuntu avahi-daemon[1041]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::21c:c4ff:fe31:1a83. Jun 30 17:12:16 Chicabuntu avahi-daemon[1041]: Withdrawing address record for fe80::21c:c4ff:fe31:1a83 on eth0. Jun 30 17:12:16 Chicabuntu dhcpcd[28361]: eth0: netlink: No such process Jun 30 17:12:16 Chicabuntu dhcpcd[28361]: eth0: removing IP address 192.168.1.111/24 Jun 30 17:12:16 Chicabuntu dhcpcd[28361]: eth0: netlink: Cannot assign requested address Jun 30 17:12:16 Chicabuntu dhcpcd[28361]: eth0: exiting Jun 30 17:12:16 Chicabuntu dhcpcd.sh: interface eth0 has been brought down Jun 30 17:12:17 Chicabuntu kernel: [15313.612141] tg3 0000:3f:00.0: irq 44 for MSI/MSI-X Jun 30 17:12:17 Chicabuntu kernel: [15313.644703] ADDRCONF(NETDEV_UP): eth0: link is not ready Jun 30 17:12:17 Chicabuntu dhcpcd[28674]: wlan1: dhcpcd not running Jun 30 17:12:17 Chicabuntu dhcpcd[28674]: wlan1: exiting Jun 30 17:12:17 Chicabuntu dhcpcd[28708]: eth0: dhcpcd not running Jun 30 17:12:17 Chicabuntu dhcpcd[28708]: eth0: exiting Jun 30 17:12:17 Chicabuntu kernel: [15313.912147] tg3 0000:3f:00.0: irq 44 for MSI/MSI-X Jun 30 17:12:17 Chicabuntu kernel: [15313.944746] ADDRCONF(NETDEV_UP): eth0: link is not ready Jun 30 17:12:18 Chicabuntu kernel: [15315.592569] tg3 0000:3f:00.0: eth0: Link is up at 100 Mbps, full duplex Jun 30 17:12:18 Chicabuntu kernel: [15315.592576] tg3 0000:3f:00.0: eth0: Flow control is on for TX and on for RX Jun 30 17:12:18 Chicabuntu kernel: [15315.593399] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready Jun 30 17:12:20 Chicabuntu avahi-daemon[1041]: Joining mDNS multicast group on interface eth0.IPv6 with address fe80::21c:c4ff:fe31:1a83. Jun 30 17:12:20 Chicabuntu avahi-daemon[1041]: New relevant interface eth0.IPv6 for mDNS. Jun 30 17:12:20 Chicabuntu avahi-daemon[1041]: Registering new address record for fe80::21c:c4ff:fe31:1a83 on eth0.*. Jun 30 17:12:29 Chicabuntu kernel: [15325.680019] eth0: no IPv6 routers present If this isn't useful, I can also post the wicd log, but that is kind of long. If anyone could help me I would be eternally grateful.

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• How to deal with project managers who micromanage?

  - by entens

  Perhaps I'm just naive, but when I try to decipher the wall of tasks I'm targeted to do over the course of a week, I just can't help but think whoever builds the project schedule needs to get some remedial training on basic project management. For example, I am assigned 13 tasks today, the shortest lasting .13 days (default time metric in Microsoft Project), and the longest lasting .75 days. I can't help but think that it is blatant micromanagement scheduling projects in sub 10 minute intervals. The effects of management are becoming evident in slipped tasks, resource assignment exceeding capacity by a factor of two at some points in time, and spending more time clearing tasks and figuring out what comes next than actually doing work. How can I convince the project manager to create tasks with larger duration and to see the larger picture?

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• Has programming ruined your perception of round numbers?

  - by Jon Purdy

  Most of the world works in base 10 nowadays, but as programmers working on binary systems, we constantly find ourselves working with powers of 2. While most people consider integer multiples of powers of 10 "nice and round" and somehow aesthetically superior, I found early on in my programming adventures that multiples of powers of 2 feel much more intuitively round to me: fewer factors, of course. I'm much more likely to lay out a Web site using, say, 8- or 16-pixel margins rather than 10 or 20, and when someone remarks that 128 is an insanely arbitrary number of ounces to be in a gallon, I have to smile a little inside at how, just perhaps, the U.S. system might be superior to metric in one small way. I'm just curious: has programming ruined (read: altered) your perception of the roundness of a number?

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• How can I quantify the amount of technical debt that exists in a project?

  - by Erik Dietrich

  Does anyone know if there is some kind of tool to put a number on technical debt of a code base, as a kind of code metric? If not, is anyone aware of an algorithm or set of heuristics for it? If neither of those things exists so far, I'd be interested in ideas for how to get started with such a thing. That is, how can I quantify the technical debt incurred by a method, a class, a namespace, an assembly, etc. I'm most interested in analyzing and assessing a C# code base, but please feel free to chime in for other languages as well, particularly if the concepts are language transcendent.

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