Depois de muito quebrar a cabe\u00e7a com a nova forma de nomear placas de redes no CentOS7 consegui uma solu\u00e7\u00e3o.
\nPara trocar o nome para eth0, eth2, etc:<\/p>\n
[root@eSuareznotes01 ~]# ip addr show
\n1: lo: mtu 65536 qdisc noqueue state UNKNOWN
\nlink\/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
\ninet 127.0.0.1\/8 scope host lo
\nvalid_lft forever preferred_lft forever
\ninet6 ::1\/128 scope host
\nvalid_lft forever preferred_lft forever
\n2: eno16777736: mtu 1500 qdisc pfifo_fast state UP qlen 1000
\nlink\/ether 00:0c:29:92:78:40 brd ff:ff:ff:ff:ff:ff
\ninet XX.X.XX.XX\/24 brd 10.0.10.255 scope global dynamic eno16777736
\nvalid_lft 85931sec preferred_lft 85931sec
\ninet6 fe80::20c:29ff:fe92:7840\/64 scope link
\nvalid_lft forever preferred_lft forever<\/p>\n
[root@eSuareznotes01 ~]# vi \/etc\/default\/grub<\/p>\n
GRUB_TIMEOUT=5
\nGRUB_DISTRIBUTOR=\u201d$(sed \u2018s, release .*$,,g\u2019 \/etc\/system-release)\u201d
\nGRUB_DEFAULT=saved
\nGRUB_DISABLE_SUBMENU=true
\nGRUB_TERMINAL_OUTPUT=\u201dconsole\u201d
\nGRUB_CMDLINE_LINUX=\u201drd.lvm.lv=rootvg\/usrlv rd.lvm.lv=rootvg\/swaplv crashkernel=auto vconsole.keymap=us rd.lvm.lv=rootvg\/rootlv vconsole.font=latarcyrheb-sun16 rhgb quiet\u201d
\nGRUB_DISABLE_RECOVERY=\u201dtrue\u201d<\/p>\n
Look for this line \u201cGRUB_CMDLINE_LINUX\u201d and add the following: \u201cnet.ifnames=0 biosdevname=0\u2033<\/p>\n
Should look like this:
\nGRUB_CMDLINE_LINUX=\u201drd.lvm.lv=rootvg\/usrlv rd.lvm.lv=rootvg\/swaplv crashkernel=auto vconsole.keymap=us rd.lvm.lv=rootvg\/rootlv vconsole.font=latarcyrheb-sun16 rhgb quiet net.ifnames=0 biosdevname=0\u201c<\/p>\n
[root@eSuareznotes01 ~]# grub2-mkconfig -o \/boot\/grub2\/grub.cfg
\nGenerating grub configuration file \u2026
\nFound linux image: \/boot\/vmlinuz-3.10.0-121.el7.x86_64
\nFound initrd image: \/boot\/initramfs-3.10.0-121.el7.x86_64.img
\nFound linux image: \/boot\/vmlinuz-0-rescue-df30d92ad3eb414583d85bb471003eb4
\nFound initrd image: \/boot\/initramfs-0-rescue-df30d92ad3eb414583d85bb471003eb4.img
\ndone<\/p>\n
If you didn\u2019t put any names during the installation, you will need to rename the interface files by renaming the file \/etc\/sysconfig\/network-scripts\/ifcfg-*.<\/p>\n
[root@eSuareznotes01 ~]# mv \/etc\/sysconfig\/network-scripts\/ifcfg-eno16777736 \/etc\/sysconfig\/network-scripts\/ifcfg-eth0
\n[root@eSuareznotes01 ~]# shutdown -r now<\/p>\n
After system reboot<\/p>\n
[root@eSuareznotes01 ~]# ip addr show
\n1: lo: mtu 65536 qdisc noqueue state UNKNOWN
\nlink\/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
\ninet 127.0.0.1\/8 scope host lo
\nvalid_lft forever preferred_lft forever
\ninet6 ::1\/128 scope host
\nvalid_lft forever preferred_lft forever
\n2: eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000
\nlink\/ether 00:0c:29:92:78:40 brd ff:ff:ff:ff:ff:ff
\ninet 10.0.10.77\/24 brd 10.0.10.255 scope global dynamic eth0
\nvalid_lft 86141sec preferred_lft 86141sec
\ninet6 fe80::20c:29ff:fe92:7840\/64 scope link
\nvalid_lft forever preferred_lft forever<\/p>\n
Agora para o kernel n\u00e3o confundir as placas e ficar trocando os nomes:<\/p>\n
systemctl disable NetworkManager
\nsystemctl stop NetworkManager<\/p>\n
And what if I want the old naming back?<\/strong><\/p>\n These are the necessary steps:<\/p>\n Add “net.ifnames=0” and “biosdevname=0” as kernel arguments to grub Eh interessante nesta parte dizer que eu tive que comentar tudo o que estava escrito dentro do arquivo \/usr\/lib\/udev\/rules.d\/60-net.rules pois l\u00e1 h\u00e1 o script que gera o nome pelo kernel \u00e0 interface de rede.<\/p>\n Crie um arquivo \/etc\/udev\/rules.d\/60-net.rules<\/strong> respeitando o MAC observador com o comando ifconfig:<\/p>\n ————————————————————————–<\/p>\n How do I disable IPv6?<\/strong><\/p>\n Upstream employee Daniel Walsh recommends not disabling the ipv6 module, as that can cause issues with SELinux and other components, but adding the following to \/etc\/sysctl.conf:<\/p>\n net.ipv6.conf.all.disable_ipv6 = 1 echo 1 > \/proc\/sys\/net\/ipv6\/conf\/all\/disable_ipv6 sysctl -w net.ipv6.conf.all.disable_ipv6=1 (1) Change the line<\/p>\n #AddressFamily any AddressFamily inet or<\/p>\n (2) Remove the hash mark (#) in front of the line<\/p>\n #ListenAddress 0.0.0.0 Additional note #2: If problems with starting postfix are encountered on systems with IPv6 disabled, either<\/p>\n (1) edit \/etc\/postfix\/main.cf and comment out the localhost part of the config and use ipv4 loopback.<\/p>\n #inet_interfaces = localhost (2) take out the ipv6 localhost from \/etc\/hosts .<\/p>\n Additional Note #3 : To disable RPCBIND ipv6 (rpcbind, rpc.mountd, prc.statd) remark out the udp6 and tcp6 lines in \/etc\/netconfig:<\/p>\n udp tpi_clts v inet udp – – There are plans to build a full 32-bit release of CentOS-7 as a secondary arch via community involvement. More information will be forthcoming on this as things progress but there is no ETA yet.<\/p>\n 4. But I just want it to work and to hand-edit the configuration files.<\/strong><\/p>\n Many installations do not require the complexity of the NetworkManager tool, and use hand-edited configuration files instead. Here is a sample non NetworkManager DHCP interface configuration:<\/p>\n [root@example ~]# cat \/etc\/sysconfig\/network-scripts\/ifcfg-eth0 [username@hostname]$ cat \/etc\/sysconfig\/network-scripts\/ifcfg-eth0 [username@hostname]$ cat \/etc\/sysconfig\/network rpm -qd initscripts Depois de muito quebrar a cabe\u00e7a com a nova forma de nomear placas de redes no CentOS7 consegui uma solu\u00e7\u00e3o. Para trocar o nome para eth0, eth2, etc: [root@eSuareznotes01 ~]# ip addr show 1: lo: mtu 65536 qdisc noqueue state UNKNOWN link\/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.abratel.com.br\/index.php?rest_route=\/wp\/v2\/posts\/838"}],"collection":[{"href":"https:\/\/blog.abratel.com.br\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.abratel.com.br\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.abratel.com.br\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.abratel.com.br\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=838"}],"version-history":[{"count":2,"href":"https:\/\/blog.abratel.com.br\/index.php?rest_route=\/wp\/v2\/posts\/838\/revisions"}],"predecessor-version":[{"id":842,"href":"https:\/\/blog.abratel.com.br\/index.php?rest_route=\/wp\/v2\/posts\/838\/revisions\/842"}],"wp:attachment":[{"href":"https:\/\/blog.abratel.com.br\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.abratel.com.br\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.abratel.com.br\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nIn ‘\/etc\/sysconfig\/network-scripts\/’ Change your configured NIC config file to ‘ifcfg-ethX’
\nIf you have multiple interfaces and want to control naming of each device rather than letting the kernel do in its own way, \/etc\/udev\/rules.d\/60-net.rules seems necessary to override \/usr\/lib\/udev\/rules.d\/60-net.rules.<\/p>\n\r\nSUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="90:f6:52:e0:32:75", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"\r\nSUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="6c:f0:49:a5:bc:38", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"\r\n<\/pre>\n
\nnet.ipv6.conf.default.disable_ipv6 = 1
\nTo disable in the running system:<\/p>\n
\necho 1 > \/proc\/sys\/net\/ipv6\/conf\/default\/disable_ipv6
\nor<\/p>\n
\nsysctl -w net.ipv6.conf.default.disable_ipv6=1
\nAdditional note #1: If problems with X forwarding are encountered on systems with IPv6 disabled, edit \/etc\/ssh\/sshd_config and make either of the following changes:<\/p>\n
\nto<\/p>\n
\n(inet is ipv4 only; inet6 is ipv6 only)<\/p>\n
\nThen restart ssh.<\/p>\n
\ninet_interfaces = 127.0.0.1
\nor<\/p>\n
\ntcp tpi_cots_ord v inet tcp – –
\n#udp6 tpi_clts v inet6 udp – –
\n#tcp6 tpi_cots_ord v inet6 tcp – –
\nrawip tpi_raw – inet – – –
\nlocal tpi_cots_ord – loopback – – –
\nunix tpi_cots_ord – loopback – – –
\n6. From where can I download the 32-bit version?<\/p>\n
\nDEVICE=”eth0″
\nBOOTPROTO=dhcp
\nNM_CONTROLLED=”no”
\nPERSISTENT_DHCLIENT=1
\nONBOOT=”yes”
\nTYPE=Ethernet
\nDEFROUTE=yes
\nPEERDNS=yes
\nPEERROUTES=yes
\nIPV4_FAILURE_FATAL=yes
\nIPV6INIT=yes
\nIPV6_AUTOCONF=yes
\nIPV6_DEFROUTE=yes
\nIPV6_PEERDNS=yes
\nIPV6_PEERROUTES=yes
\nIPV6_FAILURE_FATAL=no
\nNAME=”eth0″
\n[root@none ~]#
\nand a sample ‘static assignment’ configuration file:<\/p>\n
\nDEVICE=”eth0″
\nHWADDR=”00:21:70:10:7E:CD”
\nNM_CONTROLLED=”no”
\nONBOOT=”yes”
\nBOOTPROTO=static
\n# BOOTPROTO=dhcp
\nIPADDR=10.16.1.106
\nNETMASK=255.255.255.0
\n#
\n# the GATEWAY is sometimes in: \/etc\/sysconfig\/network
\nGATEWAY=10.16.1.1
\nand then common items such as hostname and DNS servers may optionally be placed in:<\/p>\n
\nHOSTNAME=acme.example.com
\nDNS1=10.16.1.112
\nDNS2=8.8.8.8
\n## DNS2=76.242.0.28
\nSEARCH=example.com
\nThe information there is ‘optional’ because a DHCP server can hand out these values. The initscripts are able to figure out hostname and so forth when a well-populated DNS environment exists, from PTR records and such, but some users need to manage such details manually. For more information, the full initscripts documentation files may be listed thus:<\/p>\n
\neven in a environment lacking the man manual reading package and its dependencies.<\/p>\n","protected":false},"excerpt":{"rendered":"