如何修改计算机名:localhost.localdomain

本文指导您如何在Linux系统中通过图形界面或编辑配置文件来修改服务器名称,并提供了详细的步骤和注意事项。

1. 如果你的Linux是图形化界面,请在菜单system setting->network setting里面(可以根据具体操作系统找找类似菜单),修改服务器名。

2.  vi /etc/hosts

    /etc/hosts 的内容一般有如下类似内容:

    127.0.0.1 localhost.localdomain localhost

    192.168.1.195 debian.localdomain debian

    如果有的话,请修改:localhost.localdomain=yourname

    保存退出。

3. vi /etc/sysconfig/network

    可以直接修改配置文件/etc/sysconfig/network

    这里有一个HOSTNAME=yourname

    直接修改掉就可以了。

4. reboot即可

Logs begin at 二 2025-10-14 08:39:10 CST, end at 二 2025-10-14 09:07:02 CST. -- 10月 14 08:39:10 localhost.localdomain systemd-journal[97]: Runtime journal is using 8.0M (max allowed 390.1M, trying to leave 585.2M free of 3.8G available → current limit 390.1M). 10月 14 08:39:10 localhost.localdomain kernel: Initializing cgroup subsys cpuset 10月 14 08:39:10 localhost.localdomain kernel: Initializing cgroup subsys cpu 10月 14 08:39:10 localhost.localdomain kernel: Initializing cgroup subsys cpuacct 10月 14 08:39:10 localhost.localdomain kernel: Linux version 3.10.0-1160.el7.x86_64 (mockbuild@kbuilder.bsys.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC) ) #1 SMP Mon Oct 19 16:18:59 UTC 2020 10月 14 08:39:10 localhost.localdomain kernel: Command line: BOOT_IMAGE=/vmlinuz-3.10.0-1160.el7.x86_64 root=/dev/mapper/centos-root ro crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet LANG=zh_CN.UTF-8 10月 14 08:39:10 localhost.localdomain kernel: e820: BIOS-provided physical RAM map: 10月 14 08:39:10 localhost.localdomain kernel: BIOS-e820: [mem 0x0000000000000000-0x000000000009ebff] usable 10月 14 08:39:10 localhost.localdomain kernel: BIOS-e820: [mem 0x000000000009ec00-0x000000000009ffff] reserved 10月 14 08:39:10 localhost.localdomain kernel: BIOS-e820: [mem 0x00000000000dc000-0x00000000000fffff] reserved 10月 14 08:39:10 localhost.localdomain kernel: BIOS-e820: [mem 0x0000000000100000-0x00000000bfecffff] usable 10月 14 08:39:10 localhost.localdomain kernel: BIOS-e820: [mem 0x00000000bfed0000-0x00000000bfefefff] ACPI data 10月 14 08:39:10 localhost.localdomain kernel: BIOS-e820: [mem 0x00000000bfeff000-0x00000000bfefffff] ACPI NVS 10月 14 08:39:10 localhost.localdomain kernel: BIOS-e820: [mem 0x00000000bff00000-0x00000000bfffffff] usable 10月 14 08:39:10 localhost.localdomain kernel: BIOS-e820: [mem 0x00000000f0000000-0x00000000f7ffffff] reserved 10月 14 08:39:10 localhost.localdomain kernel: BIOS-e820: [mem 0x00000000fec00000-0x00000000fec0ffff] reserved 10月 14 08:39:10 localhost.localdomain kernel: BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved 10月 14 08:39:10 localhost.localdomain kernel: BIOS-e820: [mem 0x00000000fffe0000-0x00000000ffffffff] reserved 10月 14 08:39:10 localhost.localdomain kernel: BIOS-e820: [mem 0x0000000100000000-0x000000023fffffff] usable 10月 14 08:39:10 localhost.localdomain kernel: NX (Execute Disable) protection: active 10月 14 08:39:10 localhost.localdomain kernel: SMBIOS 2.7 present. 10月 14 08:39:10 localhost.localdomain kernel: DMI: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020 10月 14 08:39:10 localhost.localdomain kernel: Hypervisor detected: VMware 10月 14 08:39:10 localhost.localdomain kernel: vmware: TSC freq read from hypervisor : 3792.877 MHz 10月 14 08:39:10 localhost.localdomain kernel: vmware: Host bus clock speed read from hypervisor : 66000000 Hz 10月 14 08:39:10 localhost.localdomain kernel: vmware: using sched offset of 5578787310 ns 10月 14 08:39:10 localhost.localdomain kernel: e820: update [mem 0x00000000-0x00000fff] usable ==> reserved 10月 14 08:39:10 localhost.localdomain kernel: e820: remove [mem 0x000a0000-0x000fffff] usable 10月 14 08:39:10 localhost.localdomain kernel: e820: last_pfn = 0x240000 max_arch_pfn = 0x400000000 10月 14 08:39:10 localhost.localdomain kernel: MTRR default type: uncachable 10月 14 08:39:10 localhost.localdomain kernel: MTRR fixed ranges enabled: 10月 14 08:39:10 localhost.localdomain kernel: 00000-9FFFF write-back 10月 14 08:39:10 localhost.localdomain kernel: A0000-BFFFF uncachable 10月 14 08:39:10 localhost.localdomain kernel: C0000-CBFFF write-protect 10月 14 08:39:10 localhost.localdomain kernel: CC000-EFFFF uncachable 10月 14 08:39:10 localhost.localdomain kernel: F0000-FFFFF write-protect 10月 14 08:39:10 localhost.localdomain kernel: MTRR variable ranges enabled: 10月 14 08:39:10 localhost.localdomain kernel: 0 base 000000000000 mask 1FC000000000 write-back 10月 14 08:39:10 localhost.localdomain kernel: 1 base 0000C0000000 mask 1FFFC0000000 uncachable 10月 14 08:39:10 localhost.localdomain kernel: 2 disabled 10月 14 08:39:10 localhost.localdomain kernel: 3 disabled 10月 14 08:39:10 localhost.localdomain kernel: 4 disabled 10月 14 08:39:10 localhost.localdomain kernel: 5 disabled 10月 14 08:39:10 localhost.localdomain kernel: 6 disabled 10月 14 08:39:10 localhost.localdomain kernel: 7 disabled 10月 14 08:39:10 localhost.localdomain kernel: PAT configuration [0-7]: WB WC UC- UC WB WP UC- UC 10月 14 08:39:10 localhost.localdomain kernel: original variable MTRRs 10月 14 08:39:10 localhost.localdomain kernel: reg 0, base: 0GB, range: 256GB, type WB 10月 14 08:39:10 localhost.localdomain kernel: reg 1, base: 3GB, range: 1GB, type UC 10月 14 08:39:10 localhost.localdomain kernel: total RAM covered: 261120M 10月 14 08:39:10 localhost.localdomain kernel: Found optimal setting for mtrr clean up 10月 14 08:39:10 localhost.localdomain kernel: gran_size: 64K chunk_size: 256G num_reg: 2 lose cover RAM: 0G 10月 14 08:39:10 localhost.localdomain kernel: New variable MTRRs 10月 14 08:39:10 localhost.localdomain kernel: reg 0, base: 0GB, range: 256GB, type WB 10月 14 08:39:10 localhost.localdomain kernel: reg 1, base: 3GB, range: 1GB, type UC 10月 14 08:39:10 localhost.localdomain kernel: e820: update [mem 0xc0000000-0xffffffff] usable ==> reserved 10月 14 08:39:10 localhost.localdomain kernel: e820: last_pfn = 0xc0000 max_arch_pfn = 0x400000000 10月 14 08:39:10 localhost.localdomain kernel: found SMP MP-table at [mem 0x000f6a70-0x000f6a7f] mapped at [ffffffffff200a70] 10月 14 08:39:10 localhost.localdomain kernel: Base memory trampoline at [ffff8d4300098000] 98000 size 24576 10月 14 08:39:10 localhost.localdomain kernel: Using GB pages for direct mapping 10月 14 08:39:10 localhost.localdomain kernel: BRK [0x14c275000, 0x14c275fff] PGTABLE 10月 14 08:39:10 localhost.localdomain kernel: BRK [0x14c276000, 0x14c276fff] PGTABLE 10月 14 08:39:10 localhost.localdomain kernel: BRK [0x14c277000, 0x14c277fff] PGTABLE 10月 14 08:39:10 localhost.localdomain kernel: BRK [0x14c278000, 0x14c278fff] PGTABLE 10月 14 08:39:10 localhost.localdomain kernel: BRK [0x14c279000, 0x14c279fff] PGTABLE 10月 14 08:39:10 localhost.localdomain kernel: BRK [0x14c27a000, 0x14c27afff] PGTABLE
10-15
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