请问在redhat-linux7.2中如何改系统参数，如SEMMNU等，这些在/proc/sys/kernel/目录中没有的。？？

[yougoo]

难道要在这个目录创建这样的文件吗？

[blh]

sysctl

[yougoo]

我的意思不是这个，我想问的是，在/proc/sys/kernel/目录中没有的参数（文件），如何修改？？
例如在UNIX中就有semmnu这个参数，但在LINUX中的该目录下没有这个文件，那么该如何处理这个参数呢？

[blh]

修改内河参数又不是一定需要/proc
sysctl就可以修改
sysctl -w kernel.sem= xxx xxx xxx xxx

[yougoo]

你还是没有懂我的意思。给分算了。我列出了sysctl -a的所有参数，我想问的是，在这些没有列出的，但在Unix中有的参数，在LINux中如何处理。？？？
象你说的sem=xxx xxx xxx xxx 这四个xxx分别代表什么，可以乱设置吗？在Unix中有SEMMNU SEMMAP SEMMNI等。

abi.fake_utsname = 0
abi.trace = 0
abi.defhandler_libcso = 68157441
abi.defhandler_lcall7 = 68157441
abi.defhandler_elf = 0
abi.defhandler_coff = 117440515
dev.raid.speed_limit_max = 100000
dev.raid.speed_limit_min = 100
net.unix.max_dgram_qlen = 10
net.token-ring.rif_timeout = 60000
net.ipv4.conf.eth0.arp_filter = 0
net.ipv4.conf.eth0.tag = 0
net.ipv4.conf.eth0.log_martians = 0
net.ipv4.conf.eth0.bootp_relay = 0
net.ipv4.conf.eth0.proxy_arp = 0
net.ipv4.conf.eth0.accept_source_route = 1
net.ipv4.conf.eth0.send_redirects = 1
net.ipv4.conf.eth0.rp_filter = 1
net.ipv4.conf.eth0.shared_media = 1
net.ipv4.conf.eth0.secure_redirects = 1
net.ipv4.conf.eth0.accept_redirects = 1
net.ipv4.conf.eth0.mc_forwarding = 0
net.ipv4.conf.eth0.forwarding = 0
net.ipv4.conf.lo.arp_filter = 0
net.ipv4.conf.lo.tag = 0
net.ipv4.conf.lo.log_martians = 0
net.ipv4.conf.lo.bootp_relay = 0
net.ipv4.conf.lo.proxy_arp = 0
net.ipv4.conf.lo.accept_source_route = 1
net.ipv4.conf.lo.send_redirects = 1
net.ipv4.conf.lo.rp_filter = 1
net.ipv4.conf.lo.shared_media = 1
net.ipv4.conf.lo.secure_redirects = 1
net.ipv4.conf.lo.accept_redirects = 1
net.ipv4.conf.lo.mc_forwarding = 0
net.ipv4.conf.lo.forwarding = 0
net.ipv4.conf.default.arp_filter = 0
net.ipv4.conf.default.tag = 0
net.ipv4.conf.default.log_martians = 0
net.ipv4.conf.default.bootp_relay = 0
net.ipv4.conf.default.proxy_arp = 0
net.ipv4.conf.default.accept_source_route = 1
net.ipv4.conf.default.send_redirects = 1
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.shared_media = 1
net.ipv4.conf.default.secure_redirects = 1
net.ipv4.conf.default.accept_redirects = 1
net.ipv4.conf.default.mc_forwarding = 0
net.ipv4.conf.default.forwarding = 0
net.ipv4.conf.all.arp_filter = 0
net.ipv4.conf.all.tag = 0
net.ipv4.conf.all.log_martians = 0
net.ipv4.conf.all.bootp_relay = 0
net.ipv4.conf.all.proxy_arp = 0
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.conf.all.send_redirects = 1
net.ipv4.conf.all.rp_filter = 0
net.ipv4.conf.all.shared_media = 1
net.ipv4.conf.all.secure_redirects = 1
net.ipv4.conf.all.accept_redirects = 1
net.ipv4.conf.all.mc_forwarding = 0
net.ipv4.conf.all.forwarding = 0
net.ipv4.neigh.eth0.locktime = 100
net.ipv4.neigh.eth0.proxy_delay = 80
net.ipv4.neigh.eth0.anycast_delay = 100
net.ipv4.neigh.eth0.proxy_qlen = 64
net.ipv4.neigh.eth0.unres_qlen = 3
net.ipv4.neigh.eth0.gc_stale_time = 60
net.ipv4.neigh.eth0.delay_first_probe_time = 5
net.ipv4.neigh.eth0.base_reachable_time = 30
net.ipv4.neigh.eth0.retrans_time = 100
net.ipv4.neigh.eth0.app_solicit = 0
net.ipv4.neigh.eth0.ucast_solicit = 3
net.ipv4.neigh.eth0.mcast_solicit = 3
net.ipv4.neigh.lo.locktime = 100
net.ipv4.neigh.lo.proxy_delay = 80
net.ipv4.neigh.lo.anycast_delay = 100
net.ipv4.neigh.lo.proxy_qlen = 64
net.ipv4.neigh.lo.unres_qlen = 3
net.ipv4.neigh.lo.gc_stale_time = 60
net.ipv4.neigh.lo.delay_first_probe_time = 5
net.ipv4.neigh.lo.base_reachable_time = 30
net.ipv4.neigh.lo.retrans_time = 100
net.ipv4.neigh.lo.app_solicit = 0
net.ipv4.neigh.lo.ucast_solicit = 3
net.ipv4.neigh.lo.mcast_solicit = 3
net.ipv4.neigh.default.gc_thresh3 = 1024
net.ipv4.neigh.default.gc_thresh2 = 512
net.ipv4.neigh.default.gc_thresh1 = 128
net.ipv4.neigh.default.gc_interval = 30
net.ipv4.neigh.default.locktime = 100
net.ipv4.neigh.default.proxy_delay = 80
net.ipv4.neigh.default.anycast_delay = 100
net.ipv4.neigh.default.proxy_qlen = 64
net.ipv4.neigh.default.unres_qlen = 3
net.ipv4.neigh.default.gc_stale_time = 60
net.ipv4.neigh.default.delay_first_probe_time = 5
net.ipv4.neigh.default.base_reachable_time = 30
net.ipv4.neigh.default.retrans_time = 100
net.ipv4.neigh.default.app_solicit = 0
net.ipv4.neigh.default.ucast_solicit = 3
net.ipv4.neigh.default.mcast_solicit = 3
net.ipv4.icmp_ratemask = 6168
net.ipv4.icmp_ratelimit = 100
net.ipv4.tcp_adv_win_scale = 2
net.ipv4.tcp_app_win = 31
net.ipv4.tcp_rmem = 4096 87380 174760
net.ipv4.tcp_wmem = 4096 16384 131072
net.ipv4.tcp_mem = 48128 48640 49152

[yougoo]

续上：
net.ipv4.tcp_dsack = 1
net.ipv4.tcp_ecn = 0
net.ipv4.tcp_reordering = 3
net.ipv4.tcp_fack = 1
net.ipv4.tcp_orphan_retries = 0
net.ipv4.inet_peer_gc_maxtime = 120
net.ipv4.inet_peer_gc_mintime = 10
net.ipv4.inet_peer_maxttl = 600
net.ipv4.inet_peer_minttl = 120
net.ipv4.inet_peer_threshold = 65664
net.ipv4.igmp_max_memberships = 20
net.ipv4.route.min_adv_mss = 256
net.ipv4.route.min_pmtu = 552
net.ipv4.route.mtu_expires = 600
net.ipv4.route.gc_elasticity = 8
net.ipv4.route.error_burst = 500
net.ipv4.route.error_cost = 100
net.ipv4.route.redirect_silence = 2048
net.ipv4.route.redirect_number = 9
net.ipv4.route.redirect_load = 2
net.ipv4.route.gc_interval = 60
net.ipv4.route.gc_timeout = 300
net.ipv4.route.gc_min_interval = 5
net.ipv4.route.max_size = 16384
net.ipv4.route.gc_thresh = 1024
net.ipv4.route.max_delay = 10
net.ipv4.route.min_delay = 2
net.ipv4.icmp_ignore_bogus_error_responses = 0
net.ipv4.icmp_echo_ignore_broadcasts = 0
net.ipv4.icmp_echo_ignore_all = 0
net.ipv4.ip_local_port_range = 32768 61000
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_rfc1337 = 0
net.ipv4.tcp_stdurg = 0
net.ipv4.tcp_abort_on_overflow = 0
net.ipv4.tcp_tw_recycle = 0
net.ipv4.tcp_syncookies = 0
net.ipv4.tcp_fin_timeout = 60
net.ipv4.tcp_retries2 = 15
net.ipv4.tcp_retries1 = 3
net.ipv4.tcp_keepalive_intvl = 75
net.ipv4.tcp_keepalive_probes = 9
net.ipv4.tcp_keepalive_time = 7200
net.ipv4.ipfrag_time = 30
net.ipv4.ip_dynaddr = 0
net.ipv4.ipfrag_low_thresh = 196608
net.ipv4.ipfrag_high_thresh = 262144
net.ipv4.tcp_max_tw_buckets = 180000
net.ipv4.tcp_max_orphans = 8192
net.ipv4.tcp_synack_retries = 5
net.ipv4.tcp_syn_retries = 5
net.ipv4.ip_nonlocal_bind = 0
net.ipv4.ip_no_pmtu_disc = 0
net.ipv4.ip_autoconfig = 0
net.ipv4.ip_default_ttl = 64
net.ipv4.ip_forward = 0
net.ipv4.tcp_retrans_collapse = 1
net.ipv4.tcp_sack = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_timestamps = 1
net.core.hot_list_length = 128
net.core.optmem_max = 10240
net.core.message_burst = 50
net.core.message_cost = 5
net.core.mod_cong = 290
net.core.lo_cong = 100
net.core.no_cong = 20
net.core.no_cong_thresh = 20
net.core.netdev_max_backlog = 300
net.core.rmem_default = 65535
net.core.wmem_default = 65535
net.core.rmem_max = 65535
net.core.wmem_max = 65535
vm.static_inactive_target = 0
vm.max-readahead = 31
vm.min-readahead = 3
vm.max_map_count = 65536
vm.page-cluster = 4
vm.pagetable_cache = 25 50
vm.kswapd = 512 32 8
vm.pagecache = 2 50 75
vm.buffermem = 2 10 60
vm.overcommit_memory = 0
vm.bdflush = 30 64 64 256 500 3000 60 0 0
vm.freepages = 383 766 1149
kernel.prof_pid = -1
kernel.overflowgid = 65534
kernel.overflowuid = 65534
kernel.random.uuid = 32939244-d6a9-4fa6-9d3a-eb79ad81cc75
kernel.random.boot_id = 46b1231c-c9b2-431b-ad5d-bbb7f2a7a777
kernel.random.write_wakeup_threshold = 128
kernel.random.read_wakeup_threshold = 8
kernel.random.entropy_avail = 0
kernel.random.poolsize = 512
kernel.threads-max = 1531
kernel.cad_pid = 1
kernel.sysrq = 0
kernel.sem = 250 32000 32 128
kernel.msgmnb = 16384
kernel.msgmni = 16
kernel.msgmax = 8192
kernel.shmmni = 4096
kernel.shmall = 2097152
kernel.shmmax = 33554432
kernel.rtsig-max = 1024
kernel.rtsig-nr = 1
kernel.acct = 4 2 30
kernel.hotplug = /sbin/hotplug
kernel.modprobe = /sbin/modprobe
kernel.printk = 3 4 1 7
kernel.ctrl-alt-del = 0
kernel.real-root-dev = 775
kernel.cap-bound = -257
kernel.tainted = 0
kernel.core_uses_pid = 0
kernel.panic = 0
kernel.domainname = (none)
kernel.hostname = localhost.localdomain
kernel.version = #1 Mon Jul 28 11:35:23 CST 2003
kernel.osrelease = 2.4.9-13custom
kernel.ostype = Linux
fs.jbd-oom-retry = 1
fs.lease-break-time = 45
fs.dir-notify-enable = 1
fs.leases-enable = 1
fs.overflowgid = 65534
fs.overflowuid = 65534
fs.dentry-state = 6048 5587 45 0 0 0
fs.dquot-nr = 0 0
fs.file-max = 8192
fs.file-nr = 1298 195 8192
fs.inode-state = 5053 1023 0 0 0 0 0
fs.inode-nr = 5053 1023